Standard White Core Foam Board 
24"x 36"x 3/16" -25 Sheets 

Foam Board is white foam with white paper. These are laminated to form the board. Bainbridge Standard White Foam board is ideal for all non-archival mounting purposes. Conveniently lightweight yet sturdy enough to resist denting. Designed to facilitate clean, crisp cuts and edges. Clay-coated for an extra-smooth surface and dual-sided with bright white surfaces. Available in popular widths and sizes.