What percentage of a wall stud can be notched in a wood framed bearing wall in light construction?

In light wood-framed construction, the code generally permits notching of wall studs to a certain extent to allow for electrical wiring, plumbing, and other installations. The allowable percentage for notching a stud in a bearing wall is typically set at 25%. This limitation is based on structural integrity and safety standards, ensuring that the wall retains adequate strength to support loads. Notching any more than this percentage can compromise the stud's load-carrying capacity and potentially lead to structural failures.

Understanding this specific percentage is critical for general contractors, who must adhere to building codes and regulations that govern construction practices. It is important to balance the need for utility installations with the structural requirements of the building, ensuring compliance and safety for the intended use of the space.