Enter wall length, pick 16 or 24 in spacing, and count the door and window openings — stud, plate, and header counts solve live.
Total run of this wall.
Doors + windows.
Labor (optional)
Total studs
16
STUDS
Bill of materials+0% waste
Studs (all-in)
kings + cripples + corners included
Net 10 field + 6 extras · Waste —
Plates (bottom + double top)
3 runs of wall length
Net 36 LF · Waste —
Headers
one per opening
Net 1 openings · Waste —
Cost projection
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Total studs
16 studs
Field studs = wall length ÷ spacing + 1 — a 12 ft wall at 16 in O.C. needs 144 ÷ 16 + 1 = 10 studs.
Enter wall length, pick 16 or 24 in spacing, and count the door and window openings — stud, plate, and header counts solve live.
Plates run three times the wall length: one bottom plate plus a doubled top plate.
Each opening adds a header, two king studs, and two cripples — one under the sill, one over the header.
Two extra studs per wall cover corners and T-intersections where walls meet.
Studs = L ÷ spacing + 1
Field studs = wall length / spacing + 1 — a 12 ft wall at 16 in O.C. needs 144 / 16 + 1 = 10 studs. The calculator then adds king studs, cripples, and corner studs based on your openings.
144 / 16 + 1 = 10 field studs, plus kings, cripples, and corner studs per the opening layout. Each door or window adds a header, two king studs, and two cripples.
For non-load-bearing walls, or load-bearing walls where the design allows. 24 in O.C. saves about a third of the studs but needs aligned framing.
It ties intersecting walls together and spreads point loads. Splices must land over a stud, offset at least 48 inches from the joint in the plate below.
One header, two king studs, and two cripples — one under the sill, one over the header. Two extra studs per wall cover corners and T-intersections where walls meet.
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