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?

Giải thích

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.