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Wall Stud Calculator

Estimate studs and plates for any framed wall.

Use this wall stud calculator to estimate studs and plates based on wall length and stud spacing. The calculation also accounts for extra studs at corners, T-intersections, and openings, while plates include 1 bottom plate and 2 top plates.

ft
in OC

Studs

18

16 in OC

Plate lumber

60

linear ft (1 btm + 2 top)

Wall length

20

ft

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How does the wall stud calculator work?

Studs = (wall length in inches ÷ spacing) + 1, plus extras for each corner or T-intersection and 2 extras per opening (king + jack). Plates = 3 × wall length (1 bottom + 2 top).

What else do people ask about this calculator?

How many studs in a 10 ft wall at 16 OC?

(120 ÷ 16) + 1 = 8.5, round up to 9 studs before extras for corners and openings.

Should I frame at 16 or 24 in OC?

16 in OC is standard for load-bearing walls. 24 in OC is code-legal in many jurisdictions and saves lumber, but reduces drywall stiffness.

Which related calculators should I use next?

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