durable and low cost prefab house 1.High quality, best price 2. ... , meeting rooms, dormitories, reception center and shops and so on2.Advantages: 1) Easy to assemble and disassemble with simple and common tools. 2) Good waterproof ... , height, eave height, roof pitch, etc. 2) Doors and windows: Dimension, quantity, position to put them. 3) Local climate: Wind speed, snow ...