A joist span is the distance covered between supporting structures. Usually, structural engineers calculate the spans to ensure accuracy. As a rule, the larger the structure, the larger the joists that are used. However, considerations such as the type of floor joist and the dimensional lumber u...
When building your roof trusses, you need to calculate the right strength for the base of the roofing. This is important because an inappropriate strength can cause the structure to warp or collapse. HOW TO BUILD ROOF TRUSSES FOR A GARAGE ...