Morton has redesigned their Boards! This new design consists of a panel system, which will enable the user to build an endless amount of sizes to suit their needs. It is 100% compatible with all of Morton's products. Boards assemble easily with interlocking tab system.  This new extra sturdy, thicker, and larger material is the finest board on the market - bar none!Individual Panel Size: 11-1/4" x 15-3/4"Packaging: 2 panels/pk. use with Portable Glass Shop