In non-bearing partitions, what is the maximum percentage of the stud width that can be bored if each bored stud is doubled?

In the context of non-bearing partitions, when assessing the modification of studs, it is crucial to understand how much material can be removed without compromising the structural integrity. Boring studs can be necessary for running electrical wiring or plumbing, but there are limits to how much can be bored to ensure that they still retain sufficient strength.

When each stud is doubled, it implies that the installer is reinforcing the stud’s capacity to bear loads, albeit indirectly, by increasing the overall structural capability through doubling. The maximum percentage of the stud width that can be bored while ensuring safety and compliance with building codes is 60%. This establishes a balance between functionality—allowing for the installation of mechanical systems—and maintaining the necessary strength of the partition.

The values provided in the other options reflect less tolerance for structural compromise in this scenario. A lower percentage would restrict the capacity for installation, while a much higher percentage would risk significative weakening of the stud. Therefore, the correct value of 60% offers a practical approach while ensuring the integrity of the non-bearing partitions is upheld.