Acid-Free Foamboard is perfect for structural backing in picture framing. Surface papers are acid- and lignin-free, with a 3% buffering agent to maintain an alkaline pH.

The 1/8 inch thickness allows you to use this backing with all frame profiles when glazing and mat boards are being used, creating a framing package of less than 3/8 of an inch.

Don’t see the size you need? Order the next size up and we’ll cut the package down at no extra charge. During check out you can specify that you want board, paper, or acrylic sheets cut to a custom size under Special Instructions in the Payment section. Please note, we will only cut an entire package down to one size, not multiple sizes.

• White Acid Free 1/4″
• Acid-free paper liners, no clay coating made of 100% High Alpha Cellulose virgin pulp free and post-consumer materials.
• Extruded closed cell polystyrene core free from damaging pollutants and harmful gases.
• Engineered to be highly warp resistant.