When drilling holes in double-studded load-bearing walls, what is the maximum depth allowed for two consecutive holes?

The maximum depth allowed for drilling holes in double-studded load-bearing walls is crucial for maintaining the structural integrity of the wall. When two consecutive holes are drilled, limiting the depth to 60% of the stud depth helps prevent significant weakening of the stud, which could compromise the load-bearing capacity of the wall.

Drilling deeper than this specified limit can lead to potential failure under load due to reduced cross-sectional area, which could cause stability issues in the structure over time. Engineers and building codes establish these parameters based on extensive research and testing to ensure safety and resilience in residential construction.

The choice of 60% strikes a balance between accommodating necessary electrical, plumbing, or HVAC installations while still preserving the integrity of critical load-bearing components. This allows for some flexibility in wall assemblies without overstepping safety boundaries.