For a building board, I took 1/2 of a set of bi-fold doors. Using 1 door, I sprayed 3M spray-on adhesive on both the door and the good side of 2 ceiling tiles. I then positioned the ceiling tiles on the door and using a small saw trimmed to fit the exact door size. I then put a handle on the end and a hook on my wall. When using the board, I place it on my workbench. When not in use, I hang it on the wall. Works great.