During a framing inspection, you discover that 2x6 wall studs are spaced 24 inches on center instead of the planned 16 inches. The wall will support a second floor. What is the most appropriate action according to Michigan Building Code?
Correct Answer
C) Reframe the wall with studs at 16" on center as originally planned
Load-bearing walls supporting a second floor typically require 16" stud spacing. The safest approach is to reframe according to the approved plans.
Why This Is the Correct Answer
Option C (Reframe the wall with studs at 16" on center as originally planned) is correct. Load-bearing walls supporting a second floor require studs at 16" on center per the approved plans and code. The contractor must correct the work to conform to approved plans — simply adding blocking or upgrading to larger studs is not an approved substitution without engineering review.
Why the Other Options Are Wrong
Option A: Add blocking between studs to reduce the effective spacing
Option A (Add blocking between studs) is incorrect. Blocking between studs does not structurally substitute for proper stud spacing in a load-bearing wall. Blocking serves lateral bracing purposes, not vertical load transfer. This workaround does not bring the wall into compliance.
Option B: Proceed as planned since 2x6 studs can handle the load at 24" spacing
Option B (Proceed as planned since 2x6 studs can handle the load at 24") is incorrect. While 2x6 studs at 24" OC may work in some non-load-bearing applications, this assumes no engineering review was done for this change. Deviating from approved plans without authorization is a code violation.
Option D: Upgrade to 2x8 studs and maintain 24" spacing
Option D (Upgrade to 2x8 studs at 24" spacing) is incorrect. Substituting a larger member size is an engineering decision that requires a plan change approval and engineering justification — a contractor cannot unilaterally make this substitution. It also doesn't follow the approved plans.
Memory Technique
Remember: 'Fix it to fit the plan.' Approved plans are the law on the jobsite. When in doubt, revert to the approved design rather than improvising structural substitutions.
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