Poster board size
Poster Board Size: 558.8 × 711.2 mm, with inch and cm dimensions. Check proportions and common uses. Find the largest square for a paper craft.
- Millimetres
- 558.8 × 711.2 mm
- Centimetres
- 55.88 × 71.12 cm
- Inches · rounded to 4 decimals
- 22 × 28 in
- Aspect ratio · width:height
- 11:14 (1:1.273)
Common uses
Use this common board size for signs, collages and display backing. It is much stiffer than folding paper.
How it compares
Foam board 20x30 is smaller in area. Poster 24x36 is larger in area. These formats have their own proportions; halving a sheet does not necessarily produce the next size.
Cut a square for origami
The largest square from a flat rectangle this size is 558.8 × 558.8 mm (22 × 22 in). Fold one short edge against a long edge so their corners meet. Crease the diagonal, cut off the extra 152.4 mm strip, then open the triangle.
Use thin paper cut to these dimensions for folding; board is better suited to cut-and-glue crafts. Try the beginner origami dog with your square, or see how to prepare square paper.