What this framing lumber calculator estimates
For a simple unbroken wall, the calculator divides wall length in inches by maximum stud spacing, rounds up to the needed number of spaces, and adds one stud for the far end. It multiplies the resulting stud positions by the stud length. Plate length includes one bottom plate plus the number of top-plate rows you enter.
This is a preliminary material estimate only. It is not a structural design or a framing schedule.
What is not included
- Corners, intersections, blocking, backing, and bracing.
- Doors, windows, headers, king studs, jack studs, and cripple studs.
- Wall thickness, sheathing, fasteners, connectors, or engineered components.
- Load calculations, permits, local code requirements, or safety requirements.
Those items can change the lumber count substantially. Use a project-specific plan and the relevant building requirements before ordering or building.
How to use the estimate
- Measure one straight wall section at a time.
- Enter the stud length you intend to use, not only the finished ceiling height.
- Enter the maximum on-center spacing required by your plan.
- Add framing around openings and extra members from the actual wall design separately.
Need board-foot volume?
After you have a complete lumber list, use the board foot calculator to total volume and estimate cost when lumber is priced by board foot.
Framing lumber questions
Why does the stud count add one at the end?
Stud spacing creates spaces between studs. A wall with a given number of spaces needs a stud at both ends.
Does this calculate walls with windows or doors?
No. Openings require additional framing that depends on the plan and applicable requirements.
Can I use 24-inch spacing?
Enter the spacing specified by your project design. This calculator only performs the estimate; it does not determine what spacing is appropriate.