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Sign Terms

Sign Glossary: Sign Industry Terms in Plain English

Raceway, returns, trim cap, halo lit. Sign quotes come with words most people never needed before. Here they are in plain English, from the shop in Linden that uses them every day on New Jersey sign projects. Ordering in the city? See our NYC service area.

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Channel letter with metal returns and face in the shop
Returns, face and trim cap
A channel letter in the shop showing the parts named in this glossary.
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Sign Terms From A Frame to Wayfinding

Tap a letter to jump.

A frame

A two sided sidewalk sign hinged at the top, also called a sandwich board.

ACM (aluminum composite material)

A rigid panel with two thin aluminum skins and a plastic core. Dibond is a well known brand.

Acrylic

A clear or colored plastic sheet used for faces, letters, panels and standoff signs.

ADA sign

A sign that meets the 2010 ADA Standards, often with raised characters and Grade 2 braille.

Awning

A fabric or vinyl cover on a metal frame over a window or door, often lettered.

Backlit

Lit from behind so the face or the letters glow.

Blade sign

A sign that projects from the building at a right angle, read from both directions.

Bleed

Extra artwork past the cut line so no white edge shows after trimming.

Braille (Grade 2)

The contracted braille required on ADA signs, placed below the raised text.

Brushed finish

A metal finish with fine straight lines that give a satin look.

Cabinet sign

A lit metal box with a face that glows, also called a light box.

Cast letters

Solid letters poured from metal, usually aluminum or bronze.

Channel letters

Individual lit letters with metal returns, a face and LEDs inside.

CMYK

The four ink colors used in full color printing: cyan, magenta, yellow and black.

CNC router

A computer guided cutting machine for letters, panels and carved signs.

Coroplast

A light, fluted plastic board used for yard signs and short term signs.

Cut vinyl

Letters and shapes cut from colored vinyl film, with no printing.

Dimensional letters

Raised letters cut or built from metal, acrylic, PVC or foam.

Direct mount

Letters fastened straight to the wall, with no raceway.

Face

The front surface of a sign or letter that carries the graphics.

Fabricated letters

Hollow letters built from sheet metal, deeper than cut letters.

Front lit

A channel letter whose colored face glows from inside.

Gold leaf

Very thin real gold applied to letters, borders or glass.

Halo lit

A letter with a solid face that throws light onto the wall behind it.

HDU

High density urethane sign foam, carved like wood but will not rot or split.

Laminate

A clear film over a print that protects it from sun and scratches.

LED module

A small group of LEDs used to light channel letters and cabinets.

Legibility index

Feet of reading distance per inch of letter height, about 30 for clear signs.

Monolithic face

A single piece face that covers a whole cabinet.

Neon

Glass tubes filled with gas that glow when powered; LED neon imitates the look.

Open face letters

Channel letters with no face, so the light source is visible.

Pantone (PMS)

A standard color matching system used to specify brand colors.

Pattern

A full size paper template used to mark where letters go on the wall.

Polycarbonate

A tough plastic used for sign faces that need impact resistance.

Power supply

The transformer that converts building power to the low voltage LEDs use.

PVC (Sintra)

Expanded PVC sheet used for indoor panels, letters and displays.

Raceway

A slim metal box on the wall that holds the wiring for channel letters.

Raster

An image made of pixels, like a JPG or PNG, that blurs when enlarged.

Retainer

The frame that holds a face in a cabinet or a letter.

Returns

The sides of a channel or fabricated letter that give it depth.

Routed face

A metal face with letters cut out and backed with acrylic so only the copy glows.

Sign band

The flat area above a storefront where the main sign goes.

Standoffs

Round metal spacers that hold a panel off the wall.

Stud mount

Threaded rods on the back of letters set into drilled holes in the wall.

Substrate

The base material a sign is printed on or cut from.

Translucent vinyl

Vinyl that lets light through, used on lit faces.

Trim cap

The plastic edge that holds a channel letter face to its returns.

Vector

Artwork made of lines and shapes that scales to any size without blur.

Wayfinding

A system of signs that guides people through a building or site.

See It in Real Life

Where You Will See These Terms on a Sign Quote

Common terms by sign type, with the page that shows them.

Lit storefront signs
Channel letters and cabinets
  • Face, returns, trim cap, raceway
  • Front lit, halo lit, open face
  • LED modules and power supply
  • See channel letters
Lobby and office signs
Letters and panels
  • Dimensional, cast and fabricated letters
  • Stud mount, standoffs, pattern
  • ADA, Grade 2 braille
  • See lobby signs
Files and print
Before production
FAQs

Sign Term FAQs

The terms customers ask about most.

What is a raceway on a sign?

A raceway is a slim metal box mounted on the wall that holds the wiring and power supplies for channel letters. The letters mount on top of it, so fewer holes go into the building.

Returns are the sides of the letter. They give the letter its depth and hold the LEDs inside.

Halo lit letters have solid faces, and the light shines out the back onto the wall, so each letter looks outlined in light.

ACM is the general name for aluminum composite panels. Dibond is a well known brand of ACM.

Artwork made of lines and shapes, such as AI, EPS, SVG or a vector PDF. It scales to any sign size without blurring.

High density urethane sign foam. It carves like wood for carved signs but does not rot, split or attract bugs.

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Have a Technical Question?

Reach out to our product specialist. We will make sure you get the right help and guide you with our best knowledge, whether it is sizes, materials, colors, lighting or permits.

Prefer to talk? Call 908-486-7000.