FREE FRAMING CALCULATOR
Wall framing calculator — studs and plates for the lumber order.
Enter total wall length, spacing, corners, and openings. Get a stud count that survives contact with the actual wall and plate footage for the same order. Free, no signup.
Wall inputs
| On-center studs | – |
| Corner / intersection extras | – |
| Opening allowance (kings) | – |
| Total studs to order | – |
| Plate footage (1 bottom + 2 top, +5%) | – |
Estimates only. Headers, jacks, cripples, blocking, and fire-stops are additional — count them from the plans. Verify spacing and assemblies against local code.
Why on-center math always comes up short
Length ÷ spacing + 1 is the textbook count — and it is only the field studs. Every corner needs backing (two or three studs, depending on the detail), every T-intersection needs nailers, and every opening consumes kings, jacks, and cripples while removing exactly one on-center stud. That is why an experienced framer orders roughly a stud per foot at 16-inch centers and rarely returns lumber.
Calculating quantities is step one. Pricing the whole job is the hard part.
FieldSquire turns a walkthrough — voice notes, photos, measurements — into an editable, line-item estimate with your own labor rates and markup, then sends a branded PDF for signature. Solo plan free for 14 days, no credit card.
Start the free Solo trialFrequently asked questions
How many studs do I need per foot of wall?
At 16 inches on center, plan on roughly one stud per foot of wall once corners, intersections, and openings are counted — the on-center math alone understates the order. This calculator adds corner and opening allowances explicitly.
How do I calculate studs at 16 on center?
Wall length in inches ÷ 16, plus one to close the run. A 12-foot wall is 144 ÷ 16 = 9 + 1 = 10 studs before corners and openings. Each corner typically adds 2 extra studs, each opening about 2 kings plus jacks and cripples.
How much plate lumber do I need?
Standard framing uses a single bottom plate and a double top plate — three times the wall length. The calculator adds 5 percent for cuts and laps.
Does this include headers?
No. Header stock depends on span and load, and it is usually a different dimension of lumber. Count headers per opening from your plans, then add king, jack, and cripple studs — the calculator carries a 2-stud allowance per opening for kings.
Can I price the framing labor with this?
This returns lumber counts. To price the job — labor rates, material costs, markup, and a signed PDF — try FieldSquire free for 14 days.