Already have the frame? Are you looking to make a multi-section dry eraseboard? The Porcelain Steel Markerboard Panels are perfect for these and other scenarios. The Porcelain Steel Panels are the raw material your framed Whiteboards are made from. The Porcelain is baked onto the steel then permanently laminated to either 1/4" or 1/2" MDF board to make a solid core for your dry erase board. Magnetic porcelain steel dry erase surface is optimized for ideal marker color contrast. The porcelain steel panels have a 50 year warranty, the low gloss porcelain provides excellent erase and writeability. Construction-Grade adhesive is recommended for mounting and installation.