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.