art alternatives wood panel super value packs are perfect for all types of painting. the hand-sanded birch wood surface is superbly smooth, and the 3/4" and 1.5" deep panels have s sturdy pine cradle that allows hanging without a frame. great for encaustic, mixed media, palette knife work and thick applications of paint. the uncradled flat panels have 5mm mdf cores, the studio panels have a 3/4 inch deep profile and gallery panels have a 1.5 inch deep profile. each pack contains a varying number of panels depending on the specific size and depth of the panels.