In conventional light-frame construction, what is the maximum percentage of the stud width that can be bored in any wood stud?

In conventional light-frame construction, the maximum percentage of the stud width that can be bored in any wood stud is 40%. This guideline is established to ensure the structural integrity and performance of the stud in carrying loads and providing lateral support within the wall assembly. Boring beyond this percentage could weaken the stud significantly, potentially leading to failure under load, especially in scenarios where the stud is subjected to lateral forces, such as wind or seismic action.

Choosing a maximum of 40% allows builders to route necessary electrical wiring, plumbing, or other utilities within framed walls without compromising the safety and stability of the overall structure. Adhering to this guideline helps maintain the balance between functional needs and structural safety in building design.