I built my own. 14x20. 2x6 walls, floor joists. Manufactured trusses, 6x7 roll up door, 32" normal door, r20 insulated, electric heat, plugs every 4 feet, cable, phone. 2 vinyl windows,6 fluoresent light sets inside, 2 pot lights outside, motion light outside, outside plug. chip board walls/ ceiling painted white inside, vinyl siding. I have about $4K into it, but damn it's a nice shed.