Wall Framing Calculator

Project name

Basis: IRC 2021 · IRC R602 (Wall Construction) · Platform framing layout · prescriptive tables only

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Wall Framing is free to use — size the wall, place your openings, and read the full cut list on screen.

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Site profile

State *Town / ZIP (optional)Saved with the project. Not used to look values up yet.

Choose your state to load site values. Nothing is assumed until you do.

Wall

Wall lengthType it any way: 12', 12 ft, 144, 12'6"

Subfloor to top of the plates. Studs cut at 7' 8 5/8".

Framing

Stud sizeStud spacing (o.c.)Top plateDefault header sizeCorner assembly

The return wall frames its own corner. Fewest studs.

Rows of blockingDouble sill plate under windows

Openings

No openings yet. Add as many doors and windows as the wall needs.

Lumber & code

SpeciesGradeWall typeInside or outsideStories supportedWaste allowance

Added to the material list as its own line — never mixed into the piece counts, so you can always see what the wall actually contains.

Header loading

A header is not sized by the opening width alone — it is sized by the load coming down on it. Fill all four in and every header in this wall gets checked; leave any blank and we will tell you what is missing rather than assume a value.

Building width (eave to eave)· requiredNeeded before this result means anything. Left empty on purpose — it is not zero.What the headers carryStoreys above this wall

Ground snow load comes from the site profile above: not set. Without it, the header check reports what it still needs rather than sizing anything.

Partition intersections

Where an interior wall tees into this one. The drywall each side of the partition needs backing, and the two ways of doing it cost different lumber.

2x6studs at 16" o.c.VERIFICATION REQUIRED

Studs

0 / 0

King / jack

Cripples

7' 8 5/8"

Stud length

Code compliance

VERIFICATION REQUIRED

Check these against your code book.

InputsVERIFICATION REQUIRED

Every dimension needed for this calculation has been given and is usable.

Stud size and spacing (2x6 at 16" o.c.)VERIFICATION REQUIRED

Your wall height: 8' 1 1/8"Maximum allowed: 20'Margin: 11' 10 7/8"

Wall height of 8' 1 1/8", within the 20' maximum we compute. That figure has not been verified against the printed table yet, so check it against your code book before you build.

IRC 2021 Table R602.3(5) — size, height and spacing of wood studs· this rule is marked unverified in our data, so it cannot return a PASS

Checked against IRC 2021 · NDS 2018. These checks are an aid, not an approval — your building department has the final say.

Material takeoff

Common (field) studs@ 7' 8 5/8"14

End studs (plain ends)@ 7' 8 5/8"2

King studs@ 7' 8 5/8"0

Jack (trimmer) studs0

Cripples above headers0

Cripples below sills0

Bottom plate20.00 lf

Top plate40.00 lf

Lap / splice allowanceupper plate laps the corners and breaks ≥24″ from the joint below4.00 lf

Total plate stock64.00 lf

Everything above, as stock187.50 lf

Waste allowance @ 10%+ 18.75 lf

Total to buy206.25 lf

Waste is a separate line, not baked into the counts above — so the piece counts always match what you can see in the drawing.

Diagonal 21' 6 15/16" — pull both corner to corner before sheathing. When the two tapes read the same, the wall is square.

Framing elevation

Every member is labelled to match the cut list. Drag an opening to move it, or the handles to resize.

Cut list

Every piece to cut, labelled to match the drawing.

Label	Qty	Size	Length	Use
A	16	2x6	7' 8 5/8"	STUD
PLT	2	2x6	20'	WALL PLATE
UTP	1	2x6	20'	UPPER TOP PLATE
Total	19	184 lineal ft

Material list

The same pieces grouped by size and length — what to ask for at the yard.

Qty	Size	Length	Used for
3	2x6	20'	wall plate, upper top plate
16	2x6	7' 8 5/8"	stud
19	pieces total

Optimized cut list (minimized waste)

Boards to buy

196 ft

Total stock length

8.5 ft

Estimated waste

4.3%

Waste rate

Wall Framing Calculator and Cut List

Lay out a stud wall and get every piece it takes to build it. Enter the wall length, the framed height and your stud spacing, place doors and windows where they actually fall, and the calculator returns the position of every stud, king stud, jack stud and cripple — plus a cut list you can take to the lumber yard.

Studs are marked to the near edge the way you actually pull a tape: hook the plate, mark 15-1/4 inches, then every 16 inches after, so the stud centre lands on 16 and your sheathing breaks on framing. Corner assemblies are counted properly, whether you frame a three-stud corner, a California corner or use drywall clips — each uses a different amount of lumber.

Headers are the part worth being careful about. A header is not sized by the opening width alone; it is sized by the load coming down on it. Give the calculator the building width, what the header carries and the ground snow load and it checks your header against the IRC table. Leave any of that out and it tells you what is missing rather than guessing.

Which code tables this works from

IRC Table R602.3(5) — stud size, height and spacing

Maximum stud height for 2x4 and 2x6 studs at each spacing, bearing and non-bearing. Your wall height is checked against it.

IRC Table R602.7(1) and R602.7(2) — girder and header spans

Header spans for exterior and interior bearing walls, keyed on building width and ground snow load. Headers are checked against a computed load using the same method.

IRC R602.3.2 — top plate splices

The upper top plate breaks at least 24 inches from the joint below it and laps the return wall at each corner. The takeoff includes that lap allowance as its own line.

The inputs that matter

Stud spacing

16 inch centers is the default for most residential walls. 24 inch centers uses less lumber and is standard in advanced framing, but limits stud height and needs thicker sheathing.

Bearing or non-bearing

A bearing wall carries the roof, ceiling or a floor above. It has a shorter maximum stud height and its headers carry real load. A partition carries only itself.

Building width

Half the building bears on this wall, and that is what sets the header load. It is required for a header check — an opening width on its own tells you nothing.

Corner style

Three-stud, two-stud, California and drywall-clip corners each use a different stud count and a different amount of insulation space. The takeoff counts them separately.

Common questions

How many studs do I need for a 20 foot wall at 16 inch centers?

A 20 foot wall laid out at 16 inch centers has 14 layout marks, but the real count depends on your openings and corners. Every stud whose body falls inside a door or window's king and jack zone is dropped rather than doubled up, and each opening adds its own kings, jacks and cripples. Enter your actual openings and the calculator gives you the exact count for each category.

What size header do I need over a 6 foot window?

There is no answer from the width alone. A header is sized by the load above it, which depends on the building width, whether it carries a roof, a floor, or both, the number of storeys above and the ground snow load. Supply those and the calculator checks your header. If any are missing it says so rather than producing a size you cannot rely on.

How long do I cut studs for an 8 foot wall?

92-5/8 inches is the standard pre-cut stud for an 8 foot wall with a double top plate. The stud does not run the full wall height — it sits on the bottom plate and is capped by two top plates, so 97-1/8 minus 4-1/2 inches of plate gives 92-5/8. The calculator works this out from your wall height and plate count.

What is a California corner and why use one?

A California corner uses two studs, the second turned flat to back the return wall's drywall, instead of the traditional three-stud post. It leaves the corner cavity open to insulate, which is why it is the advanced-framing standard. It uses one less stud per corner than a three-stud post.

GoFramePro provides preliminary planning and estimating information. Confirm structural requirements, local amendments and permitting requirements with the authority having jurisdiction.