Final answer:
The gauge of metal bearing wall studs refers to their thickness. The choice of gauge depends on factors such as load-bearing requirements and local building codes. It's important to consult building codes and structural engineers for specific projects.
Step-by-step explanation:
The gauge of metal bearing wall studs refers to the thickness of the metal. In the case of 2-by-4 studs used in building walls, the gauge is typically 18 or 20.
An 18-gauge stud is thicker and stronger than a 20-gauge stud.
The choice of gauge depends on factors such as the load-bearing requirements of the wall and local building codes.
For example, if a wall needs to support a significant load or is subject to high wind or seismic forces, an 18-gauge stud may be used.
On the other hand, a 20-gauge stud may be suitable for a non-load-bearing wall or one subject to less stress.