Choose the package
Compare framing, dried-in shell and selected finish scopes instead of mixing every possible product into one intimidating number.
Use local prices
Retail pricing changes by store, region and date. The spreadsheet is designed so you can update unit prices and recalculate.
Compare approaches
View a preliminary DIY material target and a separate contractor labor allowance without presenting either as a binding quote.
See DIY and contractor cost move while the cabin design changes
The live builder shows a simple DIY/self-build estimate next to a contractor-build estimate. A useful tiny home estimate should respond to the choices that actually add material. The builder can update the planning total as you change size, framing, roof, siding, doors, windows, porch, loft and interior finishes. A compact live estimate stays visible while you design so cost is part of the decision instead of a surprise at the end.
Start nationally, then localize the budget
National-average material pricing is useful for early comparison, but it is not a local quote. Replace default prices with current supplier numbers when you are ready to narrow the budget. Use the DIY material calculator to see the quantities behind the estimate and the drawing package to review what is being counted.
Labor, site work, utilities, permits, taxes, delivery, engineering and regional price differences can materially change the final project cost, so the live total should be treated as a planning range rather than a contractor bid.
Low-looking numbers are not useful if they leave out required work. Tiny Home Tool labels scope and uncertainty so the estimate stays understandable.