Sign Board Sizes: A Guide to Standard UK Sign Sizes

Millimetres are the standard unit for signs, so every size is given in mm, width first and then height.

• A4: 210 × 297mm, from £11.50 in Foamex
• A3: 297 × 420mm, from £15.50 in Foamex
• A2: 420 × 594mm, from £24.00 in Foamex
• A1: 594 × 841mm, from £38.50 in Foamex
• A0: 841 × 1189mm, from £67.00 in Foamex

Each size is half the one above it, and A0 has an area of 1 square metre. Aluminium costs more, and the calculator on each product page shows both prices side by side. See the pages for A1 and A0 in aluminium, or A1 and A0 in Foamex. If you also print posters, our poster sizes guide covers the A series in more detail.

The biggest standard board is the full sheet, 1220 × 2440mm (8 × 4ft). It is the largest single panel we offer as a preset, and it suits large site boards and big fascia panels. Anything over 1.5m on a side is too big for our standard courier, so it goes by large-item delivery, which we price after you order, or you can collect it free from our workshop in Trafford Park, Manchester.

See the full sheet in aluminium composite or Foamex.

You can enter any size from 50 to 1500mm by 50 to 3050mm. These custom sizes each have their own page with live prices:

• 600 × 400mm: a good size for door signs, wall signs and notices. From £39.00 in aluminium. Aluminium or Foamex.
• 900 × 600mm: a mid-size wall sign or site board. From £47.00 in aluminium. Aluminium or Foamex.
• 1200 × 600mm: a compact fascia panel or a larger site board. From £60.00 in aluminium. Aluminium or Foamex.
• 1200 × 800mm: a bigger site or entrance board. From £78.00 in aluminium. Aluminium or Foamex.
• 1500 × 500mm: a typical fascia panel for a shop. From £63.00 in aluminium. Aluminium or Foamex.
• 2400 × 600mm: a long, narrow fascia sign that fits within one full sheet length. From a quoted price in aluminium. Aluminium or Foamex.

For a permanent outdoor sign choose aluminium composite, and for indoor use Foamex costs less. Our sign materials guide explains the difference.

Some signs come in fixed sizes of their own:

• Post and panel signs: panels of 600 × 400mm, 900 × 600mm, 1200 × 800mm and 2000 × 1000mm, for car parks, entrances and estates.
• Pavement A-boards: 20 × 30 inch (508 × 762mm), A2 (420 × 594mm), A1 (594 × 841mm), B1 (707 × 1000mm) and A0 (841 × 1189mm). Our A-board sizes guide compares them.
• PVC banners: printed to any size up to 10m × 3m, with preset sizes from 1000 × 500mm to 6000 × 1200mm. See our PVC banner sizes guide.
• Roller banners: 850 × 2000mm. See our roller banner sizes guide.

The further away people are when they first see your sign, the bigger the lettering needs to be, and the fewer words it should carry. A door sign read from arm's length can be small. A fascia read from across the street needs large letters and a short name.

Work backwards from where people will stand. Decide the main message, make that as large as the space allows and keep supporting text short. Seeing your sign on a proof before it is made helps you judge this, and your proof always shows the size we will make.

Whatever size you pick, measure the space first. Measure the width and height in millimetres at more than one point, and use the smallest figures. Our guide to measuring for a shop sign shows how, and our sign sizes chart lets you compare the sizes against everyday objects. If you are unsure, send your measurements and photos on the quote page and we will help.