NASCLA Commercial General Building Contractor Exam — All Questions

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1 questions

Wood, Plastics & Composites

A framing plan calls for '2x4' studs. What is the actual dressed (surfaced) dimension of a nominal 2x4?

a.1 inch by 3 inches
b.1-1/2 inches by 3-1/2 inches✓
c.Exactly 2 inches by 4 inches
d.2-1/2 inches by 4-1/2 inches

A nominal 2x4 actually measures 1-1/2 inches by 3-1/2 inches after being surfaced (dressed). Nominal sizes are the rough-sawn dimension; estimators and framers must use the actual dimensions for layout, spacing, and material takeoffs.Nominal vs. actual lumber dimensions

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