Basement Finishing Cost Calculator
Multiply the finished area by the per-square-foot rate you choose for framing, drywall, flooring, and paint, add lump-sum allowances for a bathroom, egress, or mechanical work, then layer your contingency and contractor markup.
Basement Finishing Cost Calculator
Multiply the finished area by the per-square-foot rate you choose for framing, drywall, flooring, and paint, add lump-sum allowances for a bathroom, egress, or mechanical work, then layer your contingency and contractor markup.
Method and assumptions
Figur adds up only the allowances, quantities, and rates you enter, applies your contingency percentage to the subtotal, and adds contractor markup last. Everything is calculated locally in your browser.
- Every cost comes from you: the calculator does not fill in national averages or present them as guaranteed local prices.
- Contingency applies to your base costs and markup to the adjusted subtotal, in exactly the order shown in the breakdown.
- Permits, design fees, local taxes, and structural work are excluded unless you fold them into an allowance.
- Real prices depend on your market, season, site access, and hidden conditions that only appear during the work.
This tool produces a planning budget, not a binding quote or construction, legal, or financial advice. Get real local quotes before committing money.
Sources and references
No external data source is required: the budget uses only the quantities, allowances, and percentages you enter.
Frequently asked questions
What does the per-square-foot rate cover?
Whatever you decide it covers — many planners use it for the repeating shell work like framing, insulation, drywall, ceilings, flooring, and paint, and keep bathrooms and egress windows as separate allowances.
Why keep a separate allowance line?
Bathrooms, wet bars, egress windows, and HVAC extensions do not scale with floor area. Pricing them as lump sums keeps the square-foot rate honest for the rest of the space.