SettingsSettings for this calculationUS
The length of the wall being framed.
Measure the total straight-line length of the wall run.
Tools needed: Tape measure
16 in on-center is the most common residential standard; 24 in is used in some energy-efficient 'advanced framing' designs.
Check local code — 24 in spacing isn't accepted everywhere and depends on the wall's load-bearing role and sheathing type.
Each opening needs extra jack and king studs beyond the regular spacing count.
This adds 4 extra studs per opening (2 king studs + 2 jack/trimmer studs) — a simplified estimate; a full framing plan may vary this.
Studs needed
20 studs
A simplified estimate — a full framing plan accounts for corners, T-intersections, and blocking, which add more studs than this baseline.
- Regular-spacing studs
- 16 studs
- Extra studs for openings
- 4 studs
- Whole bays at the spacing entered
- 14
- Short bay left at the end of the wall
- 10 in
They open the calculator with your figures already in it
Framing Stud Calculator: 20 studs — shown in imperial, US market. The link sets both, so the result they see is the one on your screen.
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How this was calculated
Formula source(s)
- Standard residential wall framing uses studs spaced 16 in or 24 in on-center; stud count = (wall length / spacing) + 1
Inputs used
- Wall Length
- 19.5 ft
- Stud Spacing (on-center)
- 16 in (standard)
- Number of Doors/Windows
- 1
Intermediate steps
- Regular-spacing studs
- 16 studs
- Extra studs for openings
- 4 studs
- Whole bays at the spacing entered
- 14
- Short bay left at the end of the wall
- 10 in
Confidence note: A simplified estimate — a full framing plan accounts for corners, T-intersections, and blocking, which add more studs than this baseline.
What this calculation does not cover
- The two spacing options are applied as exactly 16 in and 24 in, so the metric labels of 400 mm and 600 mm are nominal only — a wall genuinely set out at 400 mm centres needs three more studs than this returns across a 100 m run.
- Each door or window adds a flat four studs whatever its width, so a 600 mm window and a 3 m patio door come back costing exactly the same.
- Nothing is deducted where an opening interrupts the run either: the field studs the opening displaces stay in the total, while the short fillers above and below it, and the header spanning it, sit outside the count entirely.
- Wall height is never asked for, so the answer is a count of pieces and nothing else — it cannot say which stud length to order or how many lineal metres of timber that comes to.
- No spare is built into the figure: it is the theoretical count with nothing added for bowed or split stock, miscuts, or studs culled on delivery.
- One stud is added to close the end of the run, and entries are capped at 100 m of wall and ten openings, so a longer or busier wall has to be split into separate runs and each part will charge you again for the stud its neighbour already counted.
Estimated cost — your price
This site holds no price list for this material — local prices vary too much to publish honestly. Enter your supplier's price and the result is costed with it.
Part of bigger jobs
This trade is one line of several job takeoffs. Run the whole job and every other trade comes back with it, off the same measurements.
Or plan the space itself: measure it once, doors and windows included, and this figure comes back worked out on that space, with what goes with it.
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Computed in your browser — nothing you enter is uploaded. Presented in US customary units and US trade terminology. Where a formula follows a published standard, that standard and its edition are cited beside it on this page; where none governs, the page says so. Local amendments override model codes — verify against the code in force where you build.
Sources checked 2026-09-05 · in the site-wide review of 2026-09-06 · v1.0.1
Regulatory standards & verification citations1
- Standard residential wall framing uses studs spaced 16 in or 24 in on-center; stud count = (wall length / spacing) + 1
Cite this page
Your workspace
Most jobs need more than one number. Add the calculators you need next and they open right here, underneath this one — your figures stay on screen and nothing is lost to a page change.
Tools and safety for this job
To frame a stud wall and cut framing lumber. Generic types, no brands, no prices.
Protection this work requires
- Hardwood dust is a recognised carcinogen: extract at the tool and wear a P2/N95 respirator when cutting or sanding indoors.
- Saws, grinders and breakers run above 85 dB, where hearing damage accumulates and does not recover: defenders or plugs for every cut, not just the long ones.
- Nailing, chiselling and cutting all throw fragments: glasses to EN 166 or ANSI Z87.1, and goggles rather than glasses overhead.
Show the 9 tools this job needsHide tools
Essential
Circular saw
Claw hammer
Combination or framing square
Spirit level
Tape measure
Recommended
Chalk line
Framing nailer
Mitre saw
Optional
Hand saw
Also needed as materials: chalk refill, circular saw blades, framing nails, fuel cells, mitre saw blades.
what each carpentry tool is for, and the spec that decides which to buy where one does.
Stud centres — drawn from your figures
16 stud centres along a 5.94 m wall at 16 in.
A DXF plan in metres. Opens in AutoCAD, LibreCAD, QCAD and most jobsite viewers.
What this drawing does not show (3)
- Wall height, which the calculator never asks for — this is a plan of centres, not an elevation.
- Door and window openings. The calculator is told how MANY there are and never where, so none can be placed.
- Stud thickness, corners, T-intersections and blocking.
It is a setting-out aid drawn from the figures you entered, not a construction drawing, and nobody has checked it against a design.