Garage J3C 29 ft. 5 in. x 19 ft. 6 in. Log Garage Building Kit with door motor | Hud-1 EZ Buildings The Garage J3C 3 car garage with door motor offers 534 sq. ft. of interior space and is the perfect building for your vehicle storage, workshop, or hobby room. This is a highly versatile building kit for what every needs you may have. The Garage J3C has excellent head room and includes three 7 ft. 8 in. (W) x 6 ft. x 8 in. (H) garage doors. The kit includes T and G 1 3/4 in. wall logs, 3/4 in. roof deck boards, 3 metal garage doors, 1 side door, and 3 double glazed windows hardware included. Shingles and floor not included.