What you need
- A cutting mat
- A metal safety rule
- A craft knife, such as a scalpel, ACM knife, utility knife or similar
What is foamboard?
Foamboard is a layer of foam sandwiched between two layers of card. It comes in a range of thicknesses and is mainly available in black or white.
Cutting
You cut foamboard in the same way you cut card. Using a safety rule and a sharp knife, keep the blade as vertical as possible and steadily work your way through the foamboard, making as many cuts as necessary.
The key to a clean cut
The blade of your knife must be very sharp. A blunt knife will drag through the foam core and leave a very ragged cut.
A neater edge
To join two pieces of foamboard at a right angle, remove the top layer of card and the foam core along the joining edge, but leave the bottom layer of card. The width you remove should be the same as the thickness of the foamboard.
Remove the cut section
Run your blade along the inside of the bottom card layer to remove the section. You can now bring the two pieces together for a perfect edge.
