They use 3/4" melamine, and they dont use a router on any part of the top panel (short of the t-moulding slots) They have 1 1/8" holes drilled out for the buttons, joysticks and spinner. They have the large hole for the trackball cut out also, but again its cut straight through. This is on the slikstik quad but I'll assume they are all the same. The true question being can I mount joysticks/buttons and a spinner on 3/4" material or am I going to have to buy a router and clear out some space myself (hate to do that, its the only reason I didnt build my own.)