What Information Is Usually Missing from Sign RFQs? A Practical Checklist for Accurate Quotes

A sign RFQ can look complete and still leave a manufacturer guessing. A logo is attached, an approximate size is mentioned, the quantity seems clear, and the email says “outdoor use” with a target delivery date. Yet the quotation may still depend on assumptions about materials, letter depth, lighting direction, voltage, mounting, wire exits, packing, certification, or installation responsibility. Those assumptions matter because two factories can quote the same drawing and still price completely different constructions. One may assume front-lit aluminum channel letters with individual mounting; another may price halo-lit stainless-steel letters on a raceway. The total prices may differ by hundreds or thousands of dollars, but the real problem is not necessarily price—it is scope. Once production starts, missing information becomes harder and more expensive to correct. A hole position can delay installation, the wrong power configuration can stop commissioning, and poorly defined packing can create problems across dozens of stores. A strong RFQ therefore does more than ask, “How much will this sign cost?” It gives the factory enough information to understand exactly what is being priced, manufactured, tested, packed, and delivered.

The information most often missing from sign RFQs includes exact dimensions and quantities, approved artwork, materials and finishes, lighting method, LED color or color temperature, voltage, plug type, mounting method, wall conditions, wire exits, installation responsibility, packaging, destination, certification requirements, delivery dates, and drawing revision status. Missing fields can change both the quoted price and the sign construction.

Consider a retail rollout where the first quote was based on 30 “identical” illuminated logos. After drawings were reviewed, several stores needed different widths, two countries required different electrical versions, some façades allowed individual mounting while others required raceways, and each carton needed a store code for local installers. The original quantity never changed, but almost every assumption behind the price did. That is why the most useful RFQ review often begins before the quotation is issued: identify what is confirmed, what is missing, and which unanswered question could become the most expensive surprise later.

What Is Missing from Basic Sign Specs?

Basic sign specifications are incomplete when a factory cannot tell exactly what must be produced, how large it is, how many units are required, which files control the design, what materials are expected, or how the finished sign should look. A usable RFQ should replace vague terms such as “metal logo,” “about 1.5 meters,” or “gold finish” with measurable information that allows different manufacturers to quote the same scope.

What Sign Type Is Actually Required?

A surprisingly common RFQ begins with a logo and a sentence such as “Please quote an LED sign.” The problem is that “LED sign” does not define a construction.

The same 1200 mm-wide logo could be manufactured as front-lit channel letters, halo-lit channel letters, front-and-halo-lit letters, an acrylic LED logo, LED neon, a cabinet sign, or a non-illuminated dimensional logo. Those options do not differ only in appearance. They change the metal work, acrylic structure, LED system, power supply, depth, wiring, mounting, weight, packaging, and installation method.

If the exact product has already been approved, state it directly. If it has not, the RFQ should explain the required visual result and installation condition instead of forcing a product name.

Useful information includes:

• Illuminated or non-illuminated
• Front-lit, halo-lit, dual-lit, side-lit, or edge-lit
• Individual letters or one complete sign panel
• Indoor or outdoor use
• Wall mounted, hanging, projecting, freestanding, or countertop
• Daytime appearance required
• Nighttime lighting effect required
• Viewing direction: front only, both sides, or multiple angles
• Whether a raceway, backboard, cabinet, or acrylic panel is acceptable

A simple specification such as:

“1200 mm-wide illuminated logo for an outdoor ACP storefront, individual front-lit letters, white acrylic faces, black aluminum returns, concealed wiring”

already gives the factory far more useful information than:

“1200 mm LED logo.”

Product selection at iduoduo is based on lighting direction, construction, commercial function, mounting method, environment, materials, maintenance, and repeat-production requirements rather than the product name alone.

Which Dimensions and Quantities Should Be Confirmed?

A width alone is often not enough to price a custom sign accurately.

At minimum, the RFQ should provide overall width, overall height, quantity, and the required depth when depth is part of the construction. For individual letters, the factory may also need letter height, stroke width, spacing, return depth, backing dimensions, or mounting layout.

A difference of only 100–200 mm can change more than the material area. It may affect LED quantity, power supply capacity, metal reinforcement, acrylic thickness, packaging size, dimensional weight, and whether a large component must be split for shipping.

A clearer RFQ should separate overall dimensions from individual component dimensions.

Specification	Weak Information	Better Information
Overall size	“About 1.5 m”	1480 mm W × 520 mm H
Letter depth	Not stated	80 mm return depth
Quantity	“Around 20”	24 complete sets
Size variation	“Several sizes”	8 × 900 mm, 10 × 1200 mm, 6 × 1500 mm
Store allocation	Not stated	Store codes S01–S24
Units	Mixed inches/mm	One measurement system throughout

Quantity should also be broken down when the order contains multiple sizes, versions, or locations.

For example, “60 sets” might actually mean:

• 20 sets at 900 mm wide
• 25 sets at 1200 mm wide
• 15 sets at 1500 mm wide
• 40 units for the United States
• 20 units for the United Kingdom

Those are not necessarily one production SKU.

For chain-store work, a small schedule showing store code, sign code, size, quantity, and destination can prevent quotation errors before any shop drawing is created.

What Artwork and Drawing Files Are Needed?

A logo image tells a factory what the brand looks like. It does not always tell the factory what geometry should be manufactured.

Whenever available, RFQs should include vector artwork such as AI, EPS, SVG, or a usable vector PDF. CAD files, architectural elevations, sign schedules, storefront drawings, approved renderings, and brand guidelines should also be included when they control size, position, color, or construction.

A PNG or JPG can still be useful, especially in an early-stage project, but its role should be clear.

The biggest file-related problem is often not file format. It is version confusion.

A typical project may have:

Logo_Final.ai
Logo_Final2.ai
Logo_Approved.pdf
Storefront_RevB.pdf
Storefront_RevC.pdf
WhatsApp image with a changed letter spacing

If no one identifies the controlling file, a supplier can easily quote or manufacture from an old version.

A practical RFQ should identify:

• Final logo filename
• Drawing number
• Revision number
• Revision date
• Approved or preliminary status
• Whether proportions may be adjusted
• Whether the manufacturer may redraw the artwork
• Whether exact font files are available
• Whether small strokes may be modified for manufacturability

A useful note might read:

“Quote according to Logo_Master_Rev04.ai and Elevation_A3_RevC.pdf. RevB is obsolete. Logo proportions may not be changed without approval.”

That one sentence can prevent a significant amount of rework.

Iduoduo’s quality-control documents can reference final artwork, approved shop drawings, BOMs, color schedules, finish schedules, electrical specifications, mounting specifications, packaging specifications, product codes, and store codes. The production version is checked before manufacture so outdated drawings are not mixed with approved revisions.

Which Material Details Affect the Quote?

Material names should be specific enough for two factories to price roughly the same construction.

“Metal” is not a complete material specification. Stainless steel and aluminum differ in weight, corrosion behavior, fabrication, surface treatment, and cost. Even within stainless steel, grade and thickness matter. “Acrylic” also leaves unanswered questions about thickness, transparency, diffusion, color, and whether the material is used as a face, back, spacer, or complete letter body.

The RFQ does not need to dictate every engineering detail when the design is still being developed. It does, however, need to make clear which fields are fixed and which fields may be proposed by the manufacturer.

Typical material fields include:

• Aluminum or stainless steel
• Metal grade when required
• Metal thickness
• Acrylic type
• Acrylic thickness
• PVC or foam thickness
• Face material
• Return material
• Back material
• Backboard or raceway material
• Transparent, translucent, or opaque construction
• Indoor or outdoor grade
• Coastal or high-corrosion environment
• Required flame, electrical, or project documentation
• Approved substitution rules

A useful RFQ might say:

“Aluminum construction preferred. Supplier to recommend suitable return thickness for 800 mm-high outdoor letters. White translucent acrylic face. Installation is 6 m above ground on an ACP façade.”

That is more useful than forcing an arbitrary metal thickness without considering size, location, weight, wind exposure, and transport.

Material selection at iduoduo is linked to logo geometry, product size, lighting construction, indoor or outdoor exposure, wall conditions, mounting, destination market, climate, packaging, transportation, maintenance, and repeat-order requirements.

The quotation should also show enough material information to allow comparison. If one quote uses 1.0 mm aluminum and another uses 2.0 mm stainless steel, the two prices should not be compared as if the only difference were supplier margin.

How Should Colors and Finishes Be Specified?

Color is one of the most common places where an RFQ looks precise but is not.

Terms such as “gold,” “warm white,” “black,” “silver,” “brushed,” or “mirror” can describe many different finishes. A screen image also cannot reliably replace a physical color or finish standard because monitors, phones, lighting conditions, photographs, and file color profiles all change appearance.

For painted components, provide a Pantone, RAL, or another approved reference when available. For printed elements, CMYK or approved print samples may be relevant. For illuminated products, separate daytime surface color from nighttime emitted-light color.

For example:

Daytime face: white acrylic
Returns: RAL 9005 matte black
Night illumination: 4000K white
Back halo: 3000K warm white

That is much clearer than:

“White and warm light.”

Metal finishes need similar detail. “Brushed stainless steel” should ideally state the required grade where important, visible surface, brushing direction, and whether edges should match the face. Mirror finishes should define whether the finish applies only to the front face or to visible returns as well.

A practical finish schedule may look like this:

Component	Material	Finish / Color	Reference
Letter face	Acrylic	White translucent	Approved sample
Letter return	Aluminum	Matte black	RAL 9005
Letter back	Aluminum	Black painted	Match returns
Halo light	LED	Warm white	3000K
Front light	LED	Neutral white	4000K
Mounting spacer	Metal	Black	Match wall-side hardware

Color-sensitive projects should also state whether a physical sample, paint chip, illuminated sample, or pre-production unit must be approved before bulk manufacturing.

Material and finish records are part of the manufacturing control chain because QC cannot judge a product by appearance alone. Iduoduo’s material and quality documentation can include BOMs, material schedules, color schedules, finish schedules, sample approvals, batch records, replacement records, and QC checklists.

A basic sign specification is ready for serious quotation when a factory can answer five questions without guessing: what is being made, how large it is, how many are required, which file controls the geometry, and which material and finish standard controls the finished appearance.

Which Site and Installation Details Are Missing?

Site and installation information is incomplete when the factory cannot determine what the sign will be fixed to, how it will be mounted, where power and wires must enter, which installation constraints already exist, and who is responsible for the final site work. Missing details can change brackets, studs, raceways, backboards, hole positions, templates, cable exits, hardware, packaging, and even the sign structure itself. Iduoduo’s project intake treats wall condition, mounting, power, installation, destination, and environment as engineering inputs rather than information to confirm after production.

What Is the Sign Being Installed On?

“Wall mounted” is not enough information for a production drawing.

The visible surface may be concrete, brick, stone, timber, drywall, ACP, aluminum cladding, glass, steel framing, curtain wall, tile, or a fabricated storefront fascia. Behind the visible layer there may be studs, hollow cavities, insulation, structural steel, electrical conduits, or no suitable fixing point at all.

Those differences affect both the mounting hardware and how the sign itself should be prepared.

A 1000 mm acrylic logo mounted to an office drywall reception wall may only require relatively light fixing. A 3000 mm set of exterior channel letters mounted to ACP at 8 m above ground requires a different engineering discussion. A logo mounted to glass may require through-glass hardware, stand-offs, a suspended system, or another method that avoids simply drilling wherever convenient.

The RFQ should ideally include:

• A front-facing photo of the full installation area
• Close-up photos of the wall surface
• Wall or façade material
• Wall thickness when known
• Architectural elevation if available
• Section drawing if the façade is layered
• Existing structural support information
• Existing holes or brackets
• Existing electrical penetrations
• Installation height
• Indoor or outdoor use
• Exposure to rain, wind, salt air, or direct sunlight

A useful RFQ entry might read:

“Exterior installation at 6.5 m above ground. Sign mounts to 4 mm ACP cladding over steel framing. Steel support locations shown on attached elevation. Local installer will complete final anchoring.”

That gives an engineering team far more useful information than:

“Outdoor wall sign.”

Wall condition also affects optical performance. Halo-lit letters mounted 30 mm from a smooth light-colored wall may produce a very different halo from the same letters installed against black textured brick. Iduoduo’s engineering criteria consider wall condition, installation height, mounting method, environment, viewing distance, and target market when determining structure rather than treating the wall as a decorative background.

When exact construction behind the wall is unknown, say so. A clear note such as “wall backing to be verified by local installer” is safer than leaving the factory to assume that the visible façade is suitable for direct fastening.

Which Mounting Method Is Required?

Mounting method should be defined before final quotation whenever it materially changes the product.

The same channel letters may be individually mounted, raceway mounted, fixed to a backboard, installed on stand-offs, attached to a fabricated frame, or integrated into an existing sign cabinet. An acrylic logo may use studs, spacers, hidden metal brackets, adhesive plus mechanical fixing, or a full back panel.

Each option affects labor, material, wiring, shipping volume, installation time, and appearance.

For example:

Mounting Method	Typical Factory Preparation	Common RFQ Detail Often Missing
Individual mounting	Studs, holes, template, separate wiring	Wall penetration and cable routing
Raceway mounting	Letters fixed to metal raceway	Raceway size, color, fixing points
Backboard mounting	Complete logo assembled to board	Backboard size and wall fixing
Stand-off mounting	Spacers, studs, rear hardware	Stand-off distance
Hanging installation	Eyelets, frame, cable or chain points	Load points and suspension height
Projecting sign	Bracket or structural frame	Wall structure and bracket orientation

A raceway can reduce the number of wall penetrations and simplify wiring, but it also creates a visible metal element behind the letters. Individually mounted letters can produce a cleaner appearance, but they may require more drilling, alignment work, and wiring on site.

Therefore, the RFQ should state whether appearance or installation efficiency has priority.

For instance:

“Individual mounting required. Raceway not permitted by landlord.”

or:

“Raceway mounting preferred to reduce wall penetrations. Raceway to match façade color.”

Those two sentences completely change the product being quoted.

For signs installed on delicate façades, heritage buildings, glass walls, or leased retail locations, mounting restrictions can be more important than the sign design itself. A project may have a beautiful approved rendering but still fail at installation if the landlord only allows four penetration points and the sign was manufactured for twenty-four.

Iduoduo’s engineering workflow includes mounting holes, backboards, raceways, waterproofing, segmentation, packaging loads, and site installation methods as connected engineering decisions.

How Should Mounting Holes and Templates Be Defined?

Hole positions are small details with large consequences.

If a local installer has already surveyed the site, the factory may need to follow fixed hole coordinates. If no site drilling has occurred, the factory may determine suitable mounting points and provide a template. Problems start when neither side knows who is controlling the layout.

For individual letters, several measurements may matter:

• Centerline of each letter
• Distance between letters
• Stud location
• Stud diameter
• Stud projection length
• Wire hole location
• Alignment baseline
• Overall sign width
• Overall sign height
• Template orientation
• Reference datum from wall or storefront

Suppose a logo contains 11 letters and every letter has two studs plus one wire exit. That could create more than 30 wall reference points. A 5 mm positioning error repeated across the layout can produce visible misalignment by the time the installer reaches the final letter.

A full-scale paper or drilling template is therefore valuable for many individually mounted sign projects.

A template should clearly indicate:

• Finished sign outline
• Letter or logo position
• Mounting holes
• Wire exits
• Centerline
• Horizontal reference
• Top or bottom orientation
• Scale
• Product code
• Drawing revision

Large signs may require several template sections. Those sections should have matching marks so the installer does not introduce spacing errors between pages.

Existing holes need special attention. Replacement projects often assume a new sign can reuse previous penetrations. That is only possible when hole locations, spacing, wall conditions, and structural requirements actually match.

A better RFQ statement is:

“Existing sign will be removed. Please see measured hole drawing. Reuse existing penetrations where practical; any new hole positions require approval.”

rather than:

“Use old holes.”

Iduoduo’s project records can retain installation holes, templates, wire exits, backboards, drawings, and historical production data for repeat orders, helping reduce the need to recreate installation information from memory.

Where Should Wires and Power Connections Exit?

Wire exit location should be treated as a drawing dimension, not a workshop convenience.

An illuminated letter may be perfectly manufactured and tested, yet become difficult to install if the cable exits 150 mm away from the power penetration prepared on site.

Wire routing is especially important for:

• Individually mounted channel letters
• Halo-lit letters
• Glass-wall signs
• Reception logos
• Signs with hidden wiring
• Raceway-mounted letters
• Backboard-mounted logos
• Large segmented signs
• Signs mounted over finished stone or tile

The RFQ should show the known power-entry location whenever one exists.

A basic electrical installation note can include:

Item	Example
Mains supply location	Inside wall, behind center of logo
Sign input	Low-voltage DC from remote power supply
Wire exit	Rear center of each letter
Visible cable allowed	No
Power supply location	Accessible ceiling cavity
Cable length required	2 m per group
Local connection	By local electrician

The exact arrangement varies by product, but the principle is simple: the sign’s electrical exit must correspond with the building’s electrical entry.

Glass installations need even more planning. A black cable visible through clear glass may become the most noticeable part of an otherwise premium logo. In such situations, wire location, cable color, backboard use, stand-off distance, and power-supply placement should be discussed together.

Halo-lit signs create another common issue. The wiring normally needs to leave the rear of the letter while preserving the stand-off gap required for the halo. If the hole is positioned poorly, the cable can become visible or interfere with mounting hardware.

Large signs may also use several electrical groups rather than one connection. The drawing should identify which letters belong to each group and where each cable terminates.

Iduoduo’s engineering scope includes power capacity, wiring groups, wire exits, mounting holes, backboards, and raceways because electrical and installation planning are connected.

Who Is Responsible for Installation and Final Site Work?

The RFQ should define where the manufacturer’s scope ends and the site contractor’s scope begins.

“Include installation” can mean very different things in an international sign project. One quote may include only mounting hardware. Another may include installation drawings and templates. A local sign company may include survey, permits, lift equipment, labor, wiring, and final commissioning.

Without a clear scope, prices become impossible to compare.

Installation responsibility can be divided into several parts:

Work Item	Factory	Local Installer / Contractor	Must Be Defined
Shop drawing	Often	Sometimes reviewed	Yes
Mounting hardware	Often	May supplement	Yes
Installation template	Available when required	Uses on site	Yes
Site survey	Usually local	Often	Yes
Wall verification	Limited from drawings/photos	Yes	Yes
Structural anchoring	Supplies interface	Final site responsibility often local	Yes
Lift/scaffold	No for export supply	Local	Yes
Mains connection	Product-side preparation	Qualified local electrician	Yes
Permit approval	Documentation support where applicable	Local party	Yes
Final waterproof sealing	Factory product protection	Site penetrations often local	Yes

The distinction between factory waterproofing and site waterproofing is particularly important.

A factory can seal the sign body, cable entries, joints, electrical compartments, and product-side connections according to the approved construction. It cannot control an unsealed hole drilled through a façade after delivery. Wall penetrations, field wiring, exposed connectors, and installer-applied sealant can influence outdoor performance after the sign reaches site.

The same principle applies to structure. A manufacturer can prepare brackets, studs, backboards, frames, and installation drawings, but the suitability of the actual building substrate may require verification locally.

RFQs should therefore identify:

• Who conducts the site survey
• Who approves mounting points
• Who provides structural support
• Who drills the wall
• Who provides anchors
• Who connects mains electricity
• Who provides lift equipment
• Who handles permits
• Who seals wall penetrations
• Who performs final testing after installation
• Who signs off the completed site work

This is particularly important for signs manufactured overseas and installed by a local sign company or contractor.

Iduoduo’s role as a manufacturing partner includes engineering review, installation-interface preparation, packing, and installation coordination, while project records distinguish factory work from site conditions and local installation responsibilities.

A strong installation section in an RFQ does not need to contain a full structural survey. It needs to make the known conditions visible, identify what remains unconfirmed, and establish who must confirm each unresolved site detail before production.

What Lighting and Electrical Details Are Missing?

Lighting and electrical specifications are incomplete when the factory does not know how the sign should illuminate, what light color is required, which voltage and power system will be used, where cables should exit, or what environmental and certification requirements apply. These fields affect LED selection, letter depth, power-supply capacity, wiring groups, controllers, waterproof construction, testing, installation, and replacement parts. They should be confirmed independently rather than summarized as “LED sign, white light.”

What Lighting Method Is Required?

“LED illuminated” does not define the finished sign.

Front-lit, halo-lit, front-and-halo-lit, side-lit, edge-lit, light-box illumination, and LED neon use different materials and internal structures. A quotation based on the wrong lighting method can therefore be technically valid but commercially useless because another factory may be pricing a completely different product.

The RFQ should identify where the light is expected to appear.

Lighting Method	Light Direction	Typical Construction Difference	Information Often Missing
Front-lit	Through front face	Translucent face + internal LEDs	Face material and return depth
Halo-lit	Behind sign onto wall	Opaque face + rear LEDs + stand-offs	Wall color and stand-off distance
Front & halo-lit	Front and rear	Two optical zones	Front/rear color requirements
Side-lit	Through side section	Translucent return or side layer	Side material and visible angle
Edge-lit	Through acrylic edge	Engraved/machined acrylic	Acrylic thickness and edge finish
LED neon	Continuous illuminated line	Neon Flex + backing structure	Flex size, bending and backing
Light box	Across sign face	Internal LED array + diffuser	Cabinet depth and face material

Halo-lit signs require particular attention. The wall becomes part of the optical system. White smooth paint can reflect light differently from dark brick, timber, stone, or textured concrete. Stand-off distance also affects halo spread.

For example, an RFQ might state:

“Individual stainless-steel halo-lit letters, 600 mm letter height, warm-white rear illumination, approximately 30 mm stand-off from a matte white interior wall.”

That gives the factory useful optical inputs.

A weaker instruction such as:

“Backlit metal letters”

still leaves the depth, wall, halo color, stand-off, LED layout, wiring, and mounting arrangement open.

Iduoduo’s optical engineering records treat LED type, voltage, LED spacing, stroke width, letter depth, diffuser, wall color, stand-off distance, ambient light, and viewing distance as connected factors in the final lighting result.

Which LED Color and Color Temperature Are Needed?

“White light” is not a complete lighting specification.

White LEDs are commonly selected by color temperature, usually expressed in Kelvin. A warm-white installation can create a softer hospitality or premium retail appearance, while a cooler white may suit brighter commercial environments. The correct choice depends on brand requirements, surrounding materials, ambient light, and the expected nighttime appearance.

An RFQ should state a target color temperature where brand consistency matters.

A practical specification may look like:

• Front illumination: 4000K neutral white
• Halo illumination: 3000K warm white
• Logo accent: fixed blue LED
• Dimming: not required
• RGB control: not required

For color-changing signs, “RGB” also needs clarification.

Possible requirements include:

• RGB
• RGBW
• Fixed single color
• Manual dimming
• Remote control
• Wall controller
• App control
• Automatic color cycle
• Static-color memory
• Multiple lighting zones

An RGBW system is not automatically interchangeable with a standard RGB system. Controller type, wiring count, power demand, programming, and replacement components may differ.

For chain projects, the approved LED configuration should be recorded instead of selecting “white LEDs” again for every reorder. Useful records can include LED model, light color, Kelvin value, module spacing, letter depth, dimmer or controller, and approved lighting photos.

Iduoduo supports warm white, neutral white, cool white, fixed colors, RGB, RGBW, dimming, remote control, app control, and project-specific control arrangements. Optical checks cover brightness, color consistency, hot spots, dark areas, halo quality, and batch stability.

What Voltage, Power Supply, and Plug Type Are Required?

Country name alone should not be used as the electrical specification.

An RFQ should state the required input voltage whenever known and identify how the sign will receive power. Electrical configurations vary between plug-in indoor signs, remotely powered channel letters, outdoor illuminated signage, and large signs divided into several electrical groups.

Useful fields include:

Electrical Field	Example
Mains input	120V AC
Sign operating voltage	12V DC
Frequency	60Hz
Power supply	Remote LED power supply
Power location	Inside accessible ceiling
Plug	US Type B
Cable length	2 m
Dimmer	None
Controller	RGBW controller
Electrical groups	3
Local mains connection	By local electrician

Voltage is especially important for international manufacturing.

A US project, UK project, EU project, and Australian project may share identical letter shapes and brand colors while requiring different power supplies, plug configurations, labels, and project documentation.

Large illuminated signs also require power grouping rather than one oversized connection. A long storefront sign may be divided into several groups so power supplies remain within suitable load ranges and installers can troubleshoot individual sections later.

The RFQ should therefore clarify:

• Required input voltage
• Plug type, if applicable
• Whether a plug is required at all
• Power-supply location
• Internal or external power supply
• Number of electrical groups
• Required cable length
• Whether dimming or control equipment is included
• Whether spare power supplies are required
• Who performs the final mains connection

Iduoduo manages different market versions separately because the same visual sign may require different power supplies, plugs, labels, certification arrangements, and packaging by destination.

A price based on 120V components should not be compared directly with a price based on a different electrical configuration without checking what each supplier included.

How Should Wiring and Power Locations Be Defined?

A lighting system can be correctly sized and still be difficult to install if the wire exits do not match the site.

The RFQ should identify where electrical power is available and where the sign cables are expected to leave the product. This is particularly important for individually mounted letters, halo-lit logos, glass-wall installations, reception signs, raceway systems, and sites where visible cables are unacceptable.

Important information can include:

• Wall power-entry position
• Sign wire-exit position
• Rear, bottom, top, or side exit
• Cable length
• Cable color
• Hidden or visible wiring
• Power-supply location
• Access for future replacement
• Wiring group arrangement
• Existing conduit position
• Distance between sign and power supply

Consider a set of 12 individually mounted channel letters.

If each letter is prepared with an individual rear cable but the site has only two planned electrical penetrations, the installer may need additional wall drilling, cable routing, or field modifications. A simple wiring-group plan before production can prevent the problem.

A useful drawing note might read:

“Three electrical groups. Rear wire exits to align with three existing wall penetrations shown on elevation E-04. No visible surface wiring permitted.”

Reception and glass-wall signs deserve even tighter control. A cable that is technically functional but visible behind transparent glass can ruin the finished appearance.

Power supplies also require accessible locations. Hiding a power supply permanently inside a sealed wall may make future maintenance unnecessarily difficult. Where possible, RFQs should identify an accessible ceiling cavity, service box, raceway, cabinet, or other maintenance position.

Iduoduo’s engineering process reviews power capacity, wiring groups, wire exits, mounting holes, backboards, raceways, and installation conditions together rather than treating each item independently.

Are Waterproofing and Certification Requirements Clear?

“Outdoor use” does not automatically define the level of environmental protection required.

Outdoor signs may be installed under a covered storefront, directly exposed to rain, close to the sea, on a rooftop, in a high-humidity region, or in an area with strong sunlight and large temperature swings. Those environments can require different decisions for materials, seals, cable entries, connectors, drainage, power supplies, corrosion resistance, and maintenance access.

The RFQ should describe actual exposure rather than simply requesting the highest possible waterproof rating.

Useful environmental information includes:

• Indoor or outdoor
• Covered or fully exposed
• Rain exposure
• High humidity
• Coastal or salt-air environment
• Direct sunlight
• High or low temperature conditions
• Dust exposure
• Cleaning method
• Expected daily operating hours
• Accessible or difficult maintenance location

Certification requirements also need exact wording.

A component carrying a certification mark does not automatically mean the completed custom sign has the same certification status. The RFQ should state whether the project needs specific certified components, a complete-product listing, electrical documentation, test reports, labels, or another project-specific requirement.

The destination market and project consultant may determine what is required.

A useful RFQ entry could state:

“Outdoor storefront sign for California. 120V input. UL-related requirements to be confirmed before final quotation. Please identify which supplied electrical components are certified and whether any complete-sign listing is included.”

Such wording is more useful than writing:

“Must be UL.”

The same discipline applies to waterproofing. Factory waterproof construction and site waterproofing should remain separate responsibilities. A factory can prepare sealed product joints, protected cable entries, suitable electrical components, and weather-resistant construction. Wall penetrations, field connections, external junctions, and sealing performed during installation still depend on site workmanship.

For illuminated products, Iduoduo carries out 100% lighting inspection followed by 72-hour pre-shipment testing to check LED stability, power-supply stability, controllers, flicker, early failures, color differences, dark areas, abnormal temperature rise, and wiring connections.

A lighting and electrical section is ready for reliable quotation when the manufacturer can identify the lighting direction, LED color, color temperature, voltage, power arrangement, wiring path, environmental exposure, and applicable electrical requirements without inventing missing specifications.

Which Delivery and Project Details Are Missing?

Delivery and project information is incomplete when the factory does not know the required arrival date, final destination, packing method, store or SKU breakdown, and whether samples or staged approvals are required before bulk production. These fields affect production scheduling, testing time, carton design, freight choice, labeling, split shipments, and project sequencing. A quote can be technically correct for the sign itself and still fail the project if delivery conditions are left vague.

What Delivery Date Is Actually Required?

“ASAP,” “urgent,” or “need quickly” are not usable production deadlines.

The RFQ should identify the date that really matters. In many sign projects, several dates exist at the same time:

• Artwork approval date
• Shop drawing approval date
• Sample approval date
• Production completion date
• Factory shipment date
• Port departure date
• Required arrival date
• Installation date
• Store opening date
• Event or launch date

Those dates should not be treated as interchangeable.

If a retail store opens on October 20, the sign usually cannot arrive on October 19. Local delivery, unpacking, installation, electrical connection, testing, and possible site adjustments need time. A more realistic RFQ might state:

“Store opening: October 20. Sign must arrive at installer warehouse no later than October 10. Installation planned for October 14–16.”

That gives the factory an actual planning target.

Iduoduo’s current production references distinguish project types by complexity and quantity. Regular samples are typically about 5–7 days, while special-material or special-structure samples may require about 7–15 days. Regular small-batch production is generally around 7–10 days, and medium-batch work around 10–20 days. Larger programs require a project schedule based on structure, quantity, testing, packaging, and delivery requirements.

Production planning should also include testing and packing rather than counting only fabrication days.

For a larger project, a useful schedule may include:

Milestone	Example Date
Final artwork approved	Sept. 3
Shop drawing approved	Sept. 6
Material release	Sept. 7
First article completed	Sept. 12
Bulk production starts	Sept. 13
QC completed	Sept. 23
72-hour testing completed	Sept. 26
Packing completed	Sept. 27
Shipment released	Sept. 28
Required arrival	Oct. 10

Iduoduo’s production planning can separate drawing approval, material purchasing, first article, bulk production, QC, 72-hour testing, packing, shipment, and expected arrival as individual project milestones.

A quotation should therefore state what lead time starts from. In most custom-sign projects, the clock should not begin from the first inquiry. It should begin from a clearly defined trigger such as final drawing approval, sample approval, deposit receipt, or material confirmation.

Where Will the Signs Be Delivered?

“Ship to USA” or “deliver to Europe” is rarely enough for a final freight quote.

The delivery destination should be confirmed at a level that matches the shipping method. For early budgeting, country and city may be sufficient. For a final door-to-door quotation, the factory may need the complete address, postal code, delivery type, and any access restrictions.

Useful RFQ fields include:

• Destination country
• City
• Postal code
• Full delivery address
• Commercial or residential address
• Port or airport if requested
• Door-to-door or port delivery
• Number of delivery addresses
• Delivery appointment requirement
• Limited-access location
• Warehouse opening hours
• Forklift availability
• Loading dock availability
• Contact person for delivery
• Whether customs clearance is included
• Whether duties and taxes are included

Shipping method also matters.

Iduoduo supports courier, air freight, and sea freight. As current internal reference timing, courier delivery is around 12 days, sea freight to the United States around 30 days, and sea freight to Europe around 50–60 days, while actual timing can vary because of flight schedules, vessel schedules, customs, port conditions, peak season, weather, and local delivery.

Those figures should be treated as planning references rather than guaranteed transit times.

Packed dimensions can also change the logistics choice. A 2.5 m-long fabricated sign may be inexpensive to manufacture but expensive to move by express freight because dimensional weight or oversize charges become dominant. A multi-piece construction may reduce freight cost, but the RFQ should clarify whether segmentation is acceptable before the factory changes the design for shipping.

A useful RFQ may say:

“Quote product separately from freight. Provide one courier option and one sea-freight option to ZIP 90021, Los Angeles. Final delivery is to a commercial warehouse with forklift access.”

That format makes manufacturing cost and logistics cost easier to compare.

How Should the Signs Be Packed?

Packing requirements should be included before quotation when the packing method affects cost, box count, shipment volume, or installation efficiency.

“Standard export packing” leaves too many details open.

Different projects may require:

• Individual packing
• One complete set per carton
• Multiple letters per carton
• Store-specific packing
• SKU-specific packing
• Numbered cartons
• Neutral packing
• Private-label packing
• Separate power-supply cartons
• Separate accessory bags
• Installation hardware kits
• Printed packing lists
• Barcode or QR labels
• Wooden frames
• Plywood crates
• Palletized shipment
• Extra corner protection
• Surface film protection
• Spare-part cartons

A single custom logo shipped to one office can use a relatively simple packing plan. A 40-store rollout cannot.

For multi-store projects, a carton may need to communicate several pieces of information before anyone opens it:

Store Code: CA-017
Product Code: CL-03
Sign: Front-Lit Channel Letters
Carton: 2 of 4
Installation Area: Main Entrance
Accessories: Box A
Power Supply: Box B

That type of labeling reduces the chance that installers open several cartons just to identify the right hardware or that components for different locations become mixed.

Iduoduo’s export packing can include EPE foam, corner protection, reinforced cartons, custom inserts, wooden frames or plywood crates, separated power supplies, accessory kits, store and SKU labels, numbered cartons, packing lists, split delivery, multi-address shipping, neutral packing, and private-label support.

The RFQ should also state whether packaging must be reusable.

Signs used for exhibitions, events, temporary retail installations, or traveling brand activations may need stronger reusable protection because the product will be packed and unpacked several times. A one-way export carton designed only for initial delivery may not be suitable.

Packing should therefore be specified according to what happens after delivery, not only according to how the sign leaves the factory.

Are Multiple Stores or SKUs Involved?

One quantity can hide many different products.

An RFQ stating “120 sets” may look like a single bulk order, but those 120 sets could contain different sizes, electrical versions, mounting methods, store codes, wall types, packing labels, and delivery addresses.

The factory needs to know whether the quantity represents identical units or a mixed project.

A multi-store schedule should ideally include:

Store Code	Sign Code	Size	Qty.	Voltage	Mounting	Packing	Destination
US-001	CL-A	1200 mm	1	120V	Raceway	Store kit	Chicago
US-002	CL-A	1500 mm	1	120V	Individual	Store kit	Dallas
UK-001	CL-A	1200 mm	1	230V	Raceway	Store kit	London
EU-001	CL-B	1800 mm	2	230V	Backboard	SKU pack	Paris

The logo may look identical across all four locations, but these are not necessarily the same production version.

Important differences to flag include:

• Size
• Sign orientation
• Indoor or outdoor use
• Wall type
• Mounting system
• Voltage
• Plug
• Power-supply arrangement
• Certification requirement
• Language
• Color
• Packaging
• Delivery address
• Installation date

For national or international programs, a store code and product code should stay attached to the project from quotation through production and packing.

Iduoduo’s production planning separates work by project, SKU, store, batch, deadline, and production line when multiple versions are involved.

That matters because a packing mistake in a 100-store rollout can be more expensive than a small manufacturing defect. A perfectly made sign delivered to the wrong store is still a project failure.

A practical RFQ should also state whether all stores ship together or in waves.

For example:

Wave 1: 10 pilot stores
Wave 2: 25 stores
Wave 3: 40 stores
Wave 4: 45 stores

Staged delivery can help align production with construction progress and reduce warehouse pressure, but it changes packaging, inventory control, and freight planning. The factory needs the intended shipment structure before final pricing.

Is a Sample or First-Article Approval Required?

Sample requirements should be defined before the project schedule is finalized.

“Need sample first” is too vague because a sample can serve several different purposes.

It may be used to confirm:

• Material
• Paint color
• Metal finish
• Acrylic color
• Letter depth
• Lighting color
• Color temperature
• Brightness
• Halo effect
• Construction
• Mounting method
• Packaging
• Electrical configuration
• Branding accuracy
• First-store installation

The sample type should match the decision being made.

If only the paint color is uncertain, producing a complete full-size illuminated sign may be unnecessary. A color panel may be enough.

If the main concern is halo quality, a partial illuminated letter section may provide more useful information than a flat color sample.

If the project involves 300 identical signs, a complete pre-production sample or first article may be worth the extra time because one correction before bulk production is much cheaper than correcting 300 finished units.

A sample RFQ should answer:

• What is being validated?
• Is the sample full size?
• Is it the final production construction?
• Does it use final materials?
• Does it use final LEDs?
• Is packaging included?
• Who approves it?
• How is approval recorded?
• Is physical approval required?
• Are photographs or video sufficient?
• What is the approval deadline?
• What quantity follows approval?

Iduoduo’s sample inquiry process records whether a sample is used for final size, color, illumination, packaging, permitting, or first-store validation, together with expected bulk quantity, approval responsibility, and target timing.

Once approved, a sample should not remain an isolated object.

Approved results can be transferred into:

• Final drawings
• BOM
• Material standards
• Color standards
• Lighting standards
• Mounting specifications
• QC checklist
• Packaging requirements
• Production version

Iduoduo uses that transfer process so an approved sample can become a controlled reference for later bulk production rather than relying on visual memory.

For a chain program, first-store validation can be even more useful than a tabletop sample. A real first installation can reveal issues with letter spacing, cable access, mounting holes, wall reflection, carton labeling, and installation sequence that are difficult to detect inside a factory.

The RFQ should therefore state whether the project follows:

Sample → Approval → Bulk Production

or:

Sample → Pilot Store → Site Review → Bulk Production

or:

Shop Drawing → First Article → Bulk Production

Those are different project workflows and should not be priced or scheduled as if they were the same.

A delivery and project section is ready for accurate quotation when the factory knows the true required date, where the products are going, how they must be packed, how stores and SKUs are separated, and which approvals must happen before the order can move into bulk production.

How Do You Check an RFQ Before Quoting?

An RFQ should be checked by separating confirmed specifications, missing price-critical information, provisional assumptions, and items that must be approved before production. The purpose is not to delay a quote until every small detail is known. It is to prevent dimensions, materials, lighting, mounting, electrical configuration, packing, freight, or delivery scope from being silently assumed. A useful RFQ review should make clear what the quoted price includes, what remains provisional, and which changes will require repricing.

Which Missing Details Block an Accurate Quote?

Not every unanswered question has the same commercial impact.

A missing carton label may have almost no effect on an early product price. A missing finished size, quantity, material, lighting method, or mounting structure can make the quote unreliable from the start.

A practical RFQ review should first identify the fields that could materially change material usage, production labor, electrical configuration, packing volume, or freight.

RFQ Field	Can Budget Pricing Start?	Final Quote Risk if Missing	Typical Effect
Product type	Sometimes	High	Entire construction may change
Finished dimensions	Sometimes	Very high	Material, LEDs, weight and packing change
Quantity	Sometimes	Very high	Unit price and production setup change
Material	Yes, with assumption	High	Cost, weight and durability change
Finish/color	Usually	Medium–high	Process and sample requirements change
Lighting method	Sometimes	Very high	Face, back, LED and structure change
Voltage	Yes, provisionally	High	Power supply and electrical parts change
Mounting method	Yes, provisionally	High	Hardware and fabrication change
Wire exit	Usually	Medium	Often finalized in shop drawings
Destination	Product only: yes	Freight: no	Shipping and market version change
Packing method	Sometimes	Medium–high	Carton count and freight volume change
Certification	Sometimes	High	Components, testing or documentation change

A useful test is:

Would two competent factories produce substantially different signs if they interpreted the missing field differently?

If the answer is yes, the item should either be confirmed or clearly stated as an assumption before the quotation is treated as final.

For example, an RFQ saying:

“1500 mm illuminated logo, quantity 20”

still leaves several major pricing paths open.

One factory may quote front-lit aluminum channel letters. Another may quote halo-lit stainless-steel letters. A third may assume an acrylic LED logo on one backing panel.

All three can return legitimate prices, but the numbers cannot be compared.

At iduoduo, inquiry review commonly covers use environment, wall condition, viewing distance, outdoor exposure, logo files, dimensions, quantity, color, illumination, power, mounting, packing, destination, timing, certification, and repeat-order requirements before unresolved conditions are converted into manufacturing assumptions.

What Details Can Remain Provisional?

A preliminary quote does not need every production dimension frozen.

Early-stage projects often need budget guidance before architects, landlords, installers, or brand teams have completed all approvals. Refusing to discuss price until every hole coordinate and carton label is known can slow the project without improving the first pricing decision.

The better approach is to distinguish three levels of information.

Information Level	Purpose	Example
Budget stage	Establish likely cost range	Approximate size, quantity, sign type
Final quotation stage	Price agreed commercial scope	Exact size, material, lighting, mounting, destination
Production release stage	Manufacture without guessing	Approved drawing, wire exits, hole locations, final colors

Some fields can usually remain provisional during early pricing:

• Exact mounting-hole coordinates
• Final cable-exit coordinates
• Carton artwork
• Final store label format
• Installer contact details
• Final mounting template
• Small hardware selections
• Packing-list format

Other fields should normally be much more stable before a firm price is accepted:

• Finished dimensions
• Quantity
• Main material
• Sign construction
• Illumination method
• Major mounting arrangement
• Voltage
• Destination
• Major packing requirement

For example, a quotation might reasonably state:

“Price based on 1500 mm-wide halo-lit stainless-steel letters, quantity 10, 30 mm stand-off, 3000K LEDs, 120V destination power configuration, individual mounting and reinforced export cartons. Final stud and wire-exit positions to be confirmed in shop drawings.”

The price now has a measurable basis while small installation coordinates remain open.

Iduoduo’s internal quoting approach similarly recommends explaining which information is missing, what the current estimate is based on, which conditions may change the price, and what information is required next rather than sending an unsupported lowest number.

How Should Quote Assumptions Be Recorded?

Assumptions should be written next to the quotation, not kept in a salesperson’s memory.

If an RFQ does not define a field that affects price, the quotation should state the basis used. A short assumption list can prevent weeks of disagreement later.

Useful quotation assumptions may include:

• Quoted sign dimensions
• Quantity and SKU count
• Material and thickness
• Finish and color
• Lighting method
• LED color or Kelvin value
• Input voltage
• Plug type
• Power-supply arrangement
• Mounting method
• Indoor or outdoor use
• Waterproofing basis
• Packing method
• Shipping destination
• Freight method
• Installation inclusion or exclusion
• Certification basis
• Drawing version
• Quote validity

A commercial quotation might contain wording such as:

“Quotation is based on Rev C artwork dated September 6, quantity 36 sets, 1200 mm overall width, aluminum front-lit channel letters, 80 mm returns, white acrylic faces, 4000K LEDs, 120V market configuration, raceway mounting and one reinforced carton per set.”

Now imagine the project later changes to individually mounted letters, 1500 mm width, 3000K lighting and three cartons per store.

The price may change, but there is no argument about why.

Quote revision should also be controlled. Instead of continuously editing one unnamed PDF, use quotation versions such as:

Q-240918 Rev 01
Q-240918 Rev 02
Q-240918 Rev 03

Each revision should identify what changed.

For example:

Rev 01 — initial budget
Rev 02 — size changed from 1200 to 1500 mm
Rev 03 — quantity increased from 20 to 60 sets
Rev 04 — store-specific packing added

Iduoduo’s internal quotation controls recognize changes in dimensions, quantity, materials, voltage, plug type, packing, address, freight, lead time, certification, raw materials, exchange rate, and design as conditions that may affect quotation validity.

A well-recorded assumption turns “the price changed” into “the scope changed.”

How Do You Compare Supplier Quotes Fairly?

The lowest total should not be compared until the quoted scope is normalized.

Two quotations can use the same product name and still contain different materials, electrical systems, packing, testing, freight, or installation preparation.

A comparison sheet should therefore place major specifications side by side.

Item	Quote A	Quote B	Quote C
Finished size	1500 mm	1500 mm	1500 mm
Material	Aluminum	Stainless steel	Aluminum
Face	3 mm acrylic	5 mm acrylic	3 mm acrylic
Return depth	80 mm	100 mm	80 mm
Lighting	Front-lit	Front-lit	Front-lit
LED color	6500K	6000K	Not stated
Voltage	12V system	24V system	Not stated
Mounting	Raceway	Individual	Raceway
Power supplies	Included	Included	Not clear
Template	Included	Included	No
Packing	Reinforced carton	Plywood crate	Standard carton
Freight	Excluded	Included	Excluded
Warranty	Stated	Stated	Not stated

The table immediately shows why a simple total-price comparison can be misleading.

A quotation should also be checked for exclusions.

Common exclusions include:

• Local installation
• Structural engineering
• Permits
• Wall reinforcement
• Lift or scaffold
• Mains electrical work
• Customs duty
• Import tax
• Site survey
• Special testing
• Third-party certification
• Storage
• Multi-address delivery

If one supplier includes three of those items and another includes none, the higher quotation may actually represent a lower total project cost.

Specification comparison becomes even more important on multi-store work. A difference of $20 per set may appear meaningful on a 500-set order, but a lower price based on the wrong voltage, weaker packing, missing store labels, or an incompatible mounting system can create far greater costs after delivery.

The objective is therefore not to make every supplier quote the cheapest structure.

It is to make every supplier price the same approved scope.

What Must Be Approved Before Production?

The final checkpoint comes when an RFQ stops being a quotation document and becomes a production instruction.

Production should not begin from a collection of emails, chat screenshots, old renderings, and verbal agreements. A controlled manufacturing version should identify the final information that governs the order.

Depending on the sign type, production release may require confirmation of:

• Final artwork
• Finished dimensions
• Quantity
• Product code
• Store code
• Material
• Material thickness
• Color
• Surface finish
• Lighting direction
• LED color
• Color temperature
• Voltage
• Power supply
• Controller
• Wire exits
• Mounting holes
• Raceway or backboard
• Mounting hardware
• Waterproof construction
• Approved sample
• Packaging method
• Carton identification
• Delivery version
• Final drawing revision

A simple release checklist can prevent the most expensive late changes.

Approval Item	Status	Approved By	Revision
Artwork	Approved	Brand team	Rev D
Dimensions	Approved	Project manager	Rev D
Material	Approved	Sign company	Spec 03
Color	Approved	Brand team	Pantone reference
Lighting	Approved	Project manager	4000K
Mounting	Approved	Installer	Drawing M02
Electrical	Approved	Contractor	120V version
Packing	Approved	Logistics	Pack Rev 02

Version control is particularly important when several departments are involved.

The latest email should not automatically override an approved production drawing. If a change affects size, color, mounting, electrical configuration, packing, or quantity, it should be incorporated into a revised controlled document before production continues.

Iduoduo’s QC process checks final production versions against drawing revision, modification date, product number, approval status, quantity, color, material, mounting, packing, and destination. Older drawings are withdrawn or clearly marked obsolete to prevent new and old specifications from entering the same order.

Production planning then works from controlled information rather than only a logo and rendering. Task documentation can include process steps, quantities, materials, inspection points, special requirements, packing groups, and shipment batches.

A strong RFQ review is complete when three things are visible: what is confirmed, what is still assumed, and what must be approved before manufacturing starts. That distinction makes quotations easier to compare, reduces repeated repricing, and prevents unresolved RFQ questions from becoming production or installation problems.

Need Help Reviewing a Sign RFQ?

If your RFQ is still missing a few technical details, you do not need to wait until every field is finalized before asking for a quote. You can send the information already available—such as logo files, drawings, dimensions, quantities, site photos, lighting requirements, mounting conditions, destination, or delivery date—and identify which items are still open.

Iduoduo can review the project information, point out the fields that may affect pricing or production, and help turn the available inputs into a clearer sign specification before manufacturing begins. For custom channel letters, LED signs, light boxes, acrylic logos, metal letters, and other commercial signage, the goal is to reduce assumptions early so the quotation, drawing, production, packing, and installation stages stay aligned.

If you are preparing a new sign RFQ or comparing several sign quotations, you can send the project files to Iduoduo for review and discuss the most practical next step based on the current level of information.