... floor-The first floor need be flat before assemble house(2) two or three floor-The ... floor is 18mm plywood, Aisle Panel is 2.5MM checkered steel panel 6 DoorSteel security ... assemble and disassemble with simple and common tools. 2) Good waterproof performance without extra facilities. 3) ... Length, width, height, eave height, roof pitch, etc. 2) Doors and windows: Dimension, quantity, position to put ...