this is roof truss structure, the height we offer do 5m, 6m, 7m, 8m,9m,10m,12m. We will according span length and load weight select the truss size. 8m to 12m we usual use 290x290mm or 400x400mm truss. 12m to 16m we usual use 400x400mm, 450x450mm, or 400x600mm. 20m to 22m we usual use 520x760mm truss. 26-30m we use 600x1010mm truss. we usual use canvas cover the roof top, the color can select, we have white, red, blue, gray, balck color. |