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Shop sign types explained: letters, lighting and materials.

What the words on a sign quote mean, and how to pick the right letters, lighting and material for your building.

By Shahab Wafa, Wafa Signs Ireland. Updated 17 October 2026. 4 minute read.

The three parts of most shopfront signs

Most shopfronts combine a fascia panel, lettering and some form of lighting. You can have any one of them on its own, but the sign reads best when the three are planned together.

Fascia panels

The fascia is the board above the shop window. Most are now 3 mm or 4 mm aluminium composite (ACM), which stays flat and does not rot. It can be painted, wrapped in printed vinyl or left as a plain background for letters.

Flat-cut and built-up letters

Flat-cut letters are cut from one sheet of acrylic, PVC foam, aluminium or steel and fixed to the fascia or wall, often on small stand-offs so they sit proud. They are crisp and economical.

Built-up letters are hollow 3D letters made of a face, a back and returns around the sides. They have real depth, cast their own shadow and can hold LED lighting inside. Large ones, like the rooftop lettering we made for an airport terminal, sit on a steel frame designed for the wind.

Face-lit, halo-lit and edge-lit

TypeHow it worksSuits
Face-litLEDs inside the letter shine through a translucent acrylic face, so the whole letter glowsTakeaways, phone shops and late trading, where the sign has to be read from across the street
Halo-litThe face is opaque and the LEDs shine back onto the wall, outlining each letter with lightOffices, gyms, salons and premium retail
Edge-litLight is fed into the edge of clear acrylic, so cut or engraved detail glowsCounters, receptions and window displays
Trough or spot lightingLights fixed above or below the fascia wash it with lightTraditional painted fascias and heritage streets
Light boxA slim cabinet with LEDs inside and a printed or cut faceLogos, franchises and projecting signs
LED neonFlexible LED tube bent into shapes and letters, usually on clear acrylicInteriors, windows and feature walls

Projecting signs

A projecting sign sticks out from the wall so people walking along the street can read it from both directions. On narrow streets, where a fascia is only seen head-on, it often does more work than the fascia. Our round Phonetastic light box in Cork is one. Projecting signs have their own planning limits, covered in our planning guide.

Materials

MaterialBest for
Aluminium and aluminium compositeFascias, letter returns and light box cabinets. Durable outdoors and does not rust
Stainless steelPolished or brushed letters and returns that last for decades
AcrylicColoured and illuminated letter faces, edge-lit signs and polished edges
PVC foam boardEconomical flat-cut letters indoors or in sheltered spots
Timber and MDFInteriors, screens and timber-faced letters
Printed and cut vinylWindow graphics, fascia wraps and vehicles

How to choose

  • If you trade after dark, light the sign. In an Irish winter that is most of the trading day.
  • If the street is narrow, add a projecting sign.
  • If the building is protected or in a conservation area, expect the council to prefer smaller, non-illuminated or halo-lit letters and painted or timber finishes.
  • If you have a logo with fine detail, a light box or printed face shows it more faithfully than cut letters.

Not sure? Send us a photo of the building. We will tell you what would suit it and show you a mock-up.

Questions

Which is better, face-lit or halo-lit letters?

Neither is better in general. Face-lit letters are brighter and easier to read from a distance, which suits takeaways and late trading. Halo-lit letters give a softer, more upmarket glow that suits offices, gyms and salons.

How long does an outdoor sign last?

It depends on the materials and the site. Aluminium and stainless steel last longest outdoors; printed vinyl lasts longer when it is laminated. We recommend materials once we know where the sign is going.

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