What Size Sign Do I Need? | SignShine
There's no single "legal size" for most signs. Under AS 1319, the right size depends on viewing distance and lighting — the further away a sign needs to be read from, or the poorer the light, the larger it should be.
Common workplace sizes:
- 225 × 300 mm — close-range, indoor, single doors and equipment
- 300 × 450 mm — general workplace and corridor use
- 450 × 600 mm — longer viewing distances, car parks, outdoor areas
Slim banner formats (such as 400 × 75 mm) suit doors, pipes and narrow mounting spots. Road and traffic signs follow their own AS 1742 sizing. If you tell us your viewing distance and where the sign will go, we'll recommend a size — email sales@signshine.com.au.