Shed calculator: framing, sheathing, siding and roof
A shed is a small building, which means it carries every category a house does — foundation, floor, walls, roof, dry-in and trim — at a size where a single miscount is a second trip to the yard. Estimating it properly is mostly about not forgetting a category.
Enter footprint, wall height, roof style and openings, and the takeoff returns floor framing, wall framing with correct opening headers, rafters, sheathing, siding, roofing and trim, plus a cut list and a foundation option you can switch between skids and slab.
Estimates only — not a quote.
Open the shed builderIncluded in the takeoff
- Floor joists, rim and sheathing
- Wall studs, plates and headers per opening
- Rafter or truss counts at your spacing
- Sheathing, siding, underlayment and roofing with waste
- Foundation materials for skids or slab
Inputs
- Shed width, depth and wall height
- Roof style and pitch
- Door and window openings
- Foundation type and siding choice
Plan it in 5 steps
- 1Check the size threshold first
Many jurisdictions exempt sheds under a floor-area limit but still enforce setbacks and height. Confirm before you settle on dimensions.
- 2Pick the foundation
Gravel and skids are cheaper and movable; a slab suits heavy equipment. The foundation line changes materially between the two.
- 3Lay out doors before framing
Opening width sets header size and stud count. Decide door size early rather than reframing later.
- 4Add a waste factor to sheet goods
Sheathing, siding and roofing all lose material at edges and openings. The estimate carries a waste allowance you can adjust.
- 5Verify and export
Confirm your dimensions, then take the cut list and material list to your supplier for live pricing.
Planning guidance only. Every quantity and price is an estimate — confirm dimensions and local requirements before you buy or build.
Run your own numbers
Enter your dimensions and get a material list, cut list and regional cost estimate in a couple of minutes. No account needed to see the takeoff.
Start estimatingBidding shed builder work for clients?
Contractors and handymen run this shed builder to build the material takeoff, nest the cut list, check permits by ZIP and hand the client a branded proposal — same visit, before the estimate goes cold.
- Takeoff priced to your ZIP in minutes
- Cut list that trims the lumber order
- Branded proposal and invoice PDFs
Material and cost output is an estimate, never a quote. Permit content is guidance to verify with your local building department.
Frequently asked questions
Related pricing and planning pages
Cost by city
Other calculators
Not sure where to start? Browse every calculator