Framing Calculators
Wall framing lives and dies by stud spacing: 16 inches on center is the residential standard, and every door or window opening needs a header. This calculator lays out stud counts for straight walls, accounting for corners, plates, and your choice of spacing. Use it to build a lumber list that matches how the wall actually gets built — not just the wall's square footage.
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Framing FAQs
Sixteen inches on center is the standard for residential walls; 24 inches on center is permitted for some non-load-bearing walls and saves lumber. The calculator supports both spacings so your count matches your framing plan.
Bottom plates, double top plates on load-bearing walls, headers over every opening, cripple studs above and below openings, and blocking or fire stops. The calculator's breakdown includes plates so the lumber list is complete.
Estimates are planning guides, not professional advice. Read the disclaimer.