Framing & StructuralQuestion 336 of 700
Where a concentrated load (such as a post from above) bears down over an I-joist at a support, what is often installed to carry that load past the joist without crushing it?
a.Squash blocks (vertical blocks slightly taller than the joist depth) beside the joist
b.A single drywall screw
c.Extra roofing nails
d.A layer of building paper
Explanation
Squash blocks are short vertical members set beside the I-joist at a bearing point, cut just proud of the joist depth so the concentrated load bypasses the I-joist web and transfers directly to the support below. A screw, roofing nails, or building paper cannot carry a concentrated vertical load.
Law Reference: 2025 CA Residential Code §R502.11Practice all 700 questions free — no signup required.
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