How much should standard studs be extended into the ceiling framing?

Standard studs should be extended into the ceiling framing by 1-1/2 inches to ensure proper support and alignment within the wall system. This length allows the studs to connect well with the top plate of the wall framing while maintaining a solid attachment to the ceiling joists or framing.

By extending the studs this distance, it helps to maintain structural integrity, supports load distribution, and minimizes the risk of movement or settling that could compromise the stability of the wall. A 1-1/2 inch extension is also the standard depth of a 2x4 wall stud, which facilitates proper framing techniques and ensures that drywall can be securely attached without any gaps.

Extending the studs too short would lessen the strength and stability of the wall assembly, while extending them too far could create difficulties in attaching the ceiling material and properly aligning the framing members. Thus, the choice of 1-1/2 inches reflects industry standards for effective construction practices.