Floor joists are horizontal wood boards or steel slats that are evenly spaced apart on which the flooring material sits. The ...

holes anywhere in the web area of engineered I-joists, except within 6 in. of walls and rim joists. The post How To Safely ...

With a flat roof, rafters are sometimes called roof joists. Beams are structural elements that are designed to carry vertical gravitational forces or horizontal loads. They are subject to bending ...