How deep can studs be cut or notched in nonbearing partitions while supporting only their own weight?

In nonbearing partitions, when studs are used to support only their own weight, they can be cut or notched to a depth of up to 40%. This guideline is crucial for maintaining the structural integrity and stability of the partition. The specified limit allows for effective utility installations, such as plumbing or electrical work, while minimizing the risk of compromising the studs' capacity to support the wall’s loads.

A depth of 40% strikes a balance where functionality isn’t greatly impaired, yet it ensures that the studs retain enough material to withstand lateral forces and prevent failure. Cutting or notching beyond this limit could induce potential weaknesses in the structural system, leading to sagging or collapse over time.

Understanding and adhering to these limitations is essential for inspectors to ensure that construction meets safety standards and codes.