42″ W x 33″ L x 5″ H 16-gauge galvanized catch pan features weep holes for drainage, latches on each side for easy attachment and removal from the structure, and four handles for moving. Collects material left over from the fire fuel source (i.e. nails, unburned wood scraps, etc.) for easy disposal as the room is cleaned and hosed out through an exterior burn room door.