I smashed one up to pieces small enough to fit in a single axle dump truck. A single swing with a backhoe knocked one whole wall out so the roof collapsed. That one was studded with 1-1/2 X 1-1/2 studs, aluminum skin out, 3/16 Masonite with Mylar "wall paper" inside. Fiberglass insulation about 3/4" thick, I could see through it. Rafters were 11/16 x 2-1/2" strapping, upper chord of the truss was bent, a series of 1/4" plywood scraps stapled between them. More effort to keep fewer pieces for easier loading. Separated the sheet metal & the frame for scrap. That one was empty, all the landfill stuff added up to about 8 cubic yards, not a full load for the old dump truck.