Truss shed
Plane truss is welded by upper chord, lower chord and web connecting upper chord and lower chord. The upper chord is made of 16mm round steel or 25mm steel pipe, the lower chord is made of 10mm round steel, and the web is made of 6mm steel. If the greenhouse span is large, triangular truss can be used, or plane truss and triangular truss can be used together to increase strength. This type of greenhouse has a stable skeleton, saves steel, has no central column in the shed, and is convenient to manage, but it is labor-intensive and slightly expensive to build.