Secondary members

A sag rod is a secondary steel component primarily used to prevent horizontal elements such as purlins or girts from sagging or twisting under their own weight or external forces. Sag rods are generally positioned between purlins or girts, connecting to these components either horizontally, vertically or at a slight angle. Once installed, sag rods are tensioned by tightening the nuts on their threaded ends until the required tension is reached, thereby stabilizing and effecti

A lintel is a horizontal beam placed over an opening in a wall. Its primary function is to support the load from the wall above and distribute it evenly to the vertical supports on either side of the opening. This prevents the wall from sagging or cracking around the opening. Concrete lintel supporting a window opening Steel lintel supporting a window opening Lintels can be made from various materials, including: Concrete : Common in modern construction for its strength and d