Two Dyno rooms are 12'x12'x10, and one is 8'x12'x10' (cold room). These Dyno Cells Are Standalone, No Foundation Required, Double Plywood Walls And Ceiling With Insulation And Noise Reduction Material Between Walls. Bult For Easy Disassembly And Reassembly. Includes Heavy Double Wall Door And Air Exhaust Fan and External Outside exhaust Stack 25ft connected to exhaust fan; Exhaust extraction system, collection pipe and fan. Modular Construction Walls And Ceiling Screwed Together.