20" x 30" 3/16in White Acid-Free Foamboard (Pack of 2) Elmer's

This foamboard provides an acid-free surface with a 5mm chemically inert core for mounting artwork, photographs and important documents. The facing paper on both sides of the board has a pH between 7.7 and 8.5 and is buffered to protect from pollutants. They come in a pack of two 20" x 30" foamboards.

Most orders of in-stock items ship within two business days, "warehouse only" and "out of stock" items usually ship within two weeks, and "special order" items can take four to six weeks. Read the full shipping policy.

You can return unopened, resalable merchandise within 30 days for both online and in-store purchases, with some exceptions. All returns of undamaged items are subject to a 20% restocking fee, except for easels which are subject to a 50% restocking fee. Read the full return policy.