Q. Tim, I’ve never worked with metal joist hangers. How long have joist hangers been around? When I hold one in my hand, I question whether it’s actually strong enough to support all the weight that ...

Metal building system builders have an option to use straight columns or tapered columns to hold up the structure. In many metal building applications, straight columns may have more steel than they ...

The staggered-truss structural system incorporating steel trusses was developed by the Massachusetts Institute of Technology in the late 1960s. However, designers' interest in the system has lagged ...