In how many instances can doubled studs be bored per adjacent unit?

In the context of the North Carolina Mechanical Code, doubled studs are typically used in construction where extra strength and stability are required, often in wall assemblies, particularly around doorways and windows. The code stipulates specific limits on the number of times these doubled studs can be bored to ensure structural integrity and performance.

The correct answer indicates that doubled studs can be bored in two instances per adjacent unit. This limit is in place to prevent too much weakening of the structural members, which could lead to failure under load. Boring holes in doubled studs allows for running various mechanical systems, like plumbing or electrical wiring. However, if too many holes are drilled, it can compromise the load-bearing capacity of the studs.

By allowing two bored instances, the code strikes a balance between providing necessary access for mechanical systems and maintaining sufficient strength in the wall structure. This practice ensures safety and compliance with building standards while enabling effective installation of mechanical systems.