TradeMaster Calc

Wall framing calculator

Calculate stud count, plate lengths, and layout for framed walls with openings.

in
12.0 ft
in
8.0 ft

No openings. Add doors or windows above.

Framing layout16" o.c.
144" (12.0 ft)stud/trimmerking studheader
Total studs
10
10 full + 0 king + 0 trimmer
Stud length
91-1/2″
7.63 ft
Plate lumber
36.0 ft
3 plates (2 top + 1 bottom)
Sheathing (4x8)
3 sheets
96 sqft wall
Cripples (above)
0
Short studs above headers

Wall Framing Basics

A standard framed wall consists of bottom plate, studs at regular spacing, and a double top plate. Studs are typically spaced 16" on center for exterior and load-bearing walls, or 24" for non-load-bearing interior partitions.

Framing Around Openings

Each door or window opening requires additional framing members:

  • King studs — Full-height studs on each side of the opening
  • Trimmer studs (jack studs) — Shortened studs that support the header, nailed to the king studs
  • Header — Horizontal beam above the opening that transfers load around it
  • Cripple studs — Short studs above the header (and below the sill for windows) to maintain stud spacing

Pre-Cut Stud Lengths

  • 92-5/8" — Standard pre-cut for 8' walls (96" - 3 plates at 1.5" each)
  • 104-5/8" — Pre-cut for 9' walls
  • 116-5/8" — Pre-cut for 10' walls
These calculators are provided for estimation and educational purposes only.