Calculators
Wall Framing Calculator
Input wall length, height, and stud spacing. Get a parts list with waste factor, total linear feet, and a rough dollar estimate. Formula shown below — no email wall, no lead capture.
Parts list
Common studs—
King studs (openings)—
Jack studs (openings)—
Cripples (openings)—
Bottom plate (lin. ft)—
Top plate — double (lin. ft)—
Header material (lin. ft)—
With waste factor—
Material cost by store
Home Depot—
Lowe’s—
Menards—
Prices fluctuate. Call your local store to confirm before buying.
What this calculates
Framing a single straight wall, platform-framed, with a double top plate and a single bottom plate. Standard door/window opening assumed at 3′ rough width.
- Studs:
ceil(wall_length × 12 / stud_spacing) + 1— one extra for the end stud. - Bottom plate: wall length, single.
- Top plate: wall length × 2 (double top plate).
- Openings: 2 king studs + 2 jack studs + 2 cripples per opening. Header at 3′-6″ (rough opening + 6″ bearing).
- Waste factor is applied to total stud count only (plates are typically bought in long lengths).
Does not include: sheathing, insulation, nails/screws, vapor barrier, bracing, or corner assemblies. Those get their own calculators.
// Core formula
studs = ceil(length_ft × 12 / spacing_in) + 1
king_studs = openings × 2
jack_studs = openings × 2
cripples = openings × 2
bottom_plate = length_ft
top_plate = length_ft × 2
header_lf = openings × 3.5
total_studs = (studs + king + jack + cripples) × (1 + waste_pct/100)
cost = ceil(total_studs) × stud_price
studs = ceil(length_ft × 12 / spacing_in) + 1
king_studs = openings × 2
jack_studs = openings × 2
cripples = openings × 2
bottom_plate = length_ft
top_plate = length_ft × 2
header_lf = openings × 3.5
total_studs = (studs + king + jack + cripples) × (1 + waste_pct/100)
cost = ceil(total_studs) × stud_price
Price & Estimate Disclaimer
Prices shown are estimates only, based on publicly observed pricing as of April 2026. Actual prices at Home Depot, Lowe’s, Menards, and other retailers vary by location, season, and market conditions and can change without notice. Homeject makes no warranty — express or implied — as to the accuracy, completeness, or current validity of any price displayed by this calculator. You are responsible for verifying current pricing with the retailer before purchase. Homeject and its owner accept no liability for financial loss, project overruns, or purchasing decisions made in reliance on these figures.
The calculator’s material quantities are planning estimates and do not replace a licensed contractor, engineer, or local building-code review. See the full Terms of Use.
The calculator’s material quantities are planning estimates and do not replace a licensed contractor, engineer, or local building-code review. See the full Terms of Use.