Framing & StructuralQuestion 438 of 700
When nailing wood structural panel subflooring or wall sheathing by hand, what is the typical fastener spacing required at the supported panel edges and at intermediate (field) supports?
a.6 inches on center at edges and 12 inches on center in the field
b.12 inches at edges and 24 inches in the field
c.3 inches at edges and 6 inches in the field
d.4 inches at edges and 8 inches in the field
Explanation
Standard panel attachment calls for fasteners at 6 inches on center along supported edges and 12 inches on center at intermediate supports. 12/24 is too sparse and would not develop the panel's design capacity; 3/6 and 4/8 are the tighter patterns reserved for high-load shear walls, not ordinary sheathing.
Law Reference: 2025 CA Residential Code §R602.3Practice all 700 questions free — no signup required.
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