1.Introduction
Prefabricated house are made of light Steel Structure and kinds of protective roof and wall materials and doors, windows to achieve high strength, easy transportation, easy installation and short period to finish project.

The regular steel structure include H section steel, C section steel, Z section steel, channel, rods, brace, etc. And the protective roof and wall materials can be single steel sheets or color steel sandwich panels, etc.

2.Main Materials 
1.Q235,Q345 H section steel structure for columns and beam
2. Pre-embedding anchor bolts for connection columns to foundation
3. Intensive bolts for connection tween columns and beams.
4. Wall/roof panel: one layer corrugated stee plate or sandwich panels
5. Windows/door . PVC, aluminium alloy , steel etc.
6. Color steel plate or galvanized steel gutters and pvs tubes for rain water

3.About the quotation, we need to know:
1. Dimension : Length, Width, Height, Eave Height, Roof Pitch,Etc
2. Doors and windows: Dimension, quantity, position to put them
3. Local climate: Wind speed,snow load,etc
4.Insulation material: Sandwich panel or steel sheet?
5.Crane beam: do you need crane beam inside the steel structure? and we also need to know the capacity
6.Is there any materials that are not allowed to import into the country where the structure is planning to use?
7.We'll be appreicated if you can provide us the detailed drawing.