Framing & StructuralQuestion 383 of 700

For a conventionally framed wall anchored to a concrete foundation, anchor bolts of at least 1/2-inch diameter must generally be spaced no more than what distance on center?

a.4 feet
b.6 feet
c.8 feet
d.10 feet

Explanation

The residential code generally requires 1/2-inch anchor bolts at a maximum of 6 feet on center, with a bolt located within 12 inches of each plate end. 4 feet is more conservative than required; 8 and 10 feet exceed the maximum spacing and would under-anchor the sill plate against uplift and sliding.

Law Reference: 2025 CA Residential Code §R403.1.6

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