Free Wall Framing Calculator
Calculate how many studs you need for wall framing based on wall length and stud spacing (16" or 24" on center).
Add 2 extra studs per corner
Each door needs 2 king studs + 2 jack studs + cripples
Each window needs king, jack, sill, and cripple studs
Total Studs
32
Total Studs vs Wall Length
How to Calculate Wall Framing Studs
Formula
Field Studs = floor(Wall Length / Spacing) + 1
Corner Studs = Corners × 2 (extra studs for each corner)
Opening Studs = Doors × 5 + Windows × 7
Each door opening needs 2 king studs and 2 jack studs plus a cripple above the header (5 extra). Each window needs 2 king studs, 2 jack studs, 2 cripples below sill, and 1 sill (7 extra). Plates require 3× the wall length (1 bottom plate + double top plate).
Example Calculation
A 20 ft wall, 8 ft high, 16" OC, 2 corners, 1 door, 1 window.
- 01Field studs = floor(20 / 1.333) + 1 = 16 studs
- 02Corner studs = 2 × 2 = 4 studs
- 03Opening studs = 1 × 5 + 1 × 7 = 12 studs
- 04Total studs = 16 + 4 + 12 = 32 studs
- 05Plate material = 20 × 3 = 60 linear feet
Frequently Asked Questions
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