the metal box was picked up at the local Home Depot, cost was I believe $21.00 it is about 6" deep & 12" wide has several 1/2" to 2" electrical knockout holes. As a matter of fact the knockout hole on side was the exact size of the cooling fan , So I mounted the Xylotex board on 1" long aluminuim spacer rod to get it perfectly in line with fan and help with cooling ..Jim Stidham |