Rex says
Everyday utility math — the kind you'd otherwise pull up four browser tabs for. I keep it to one clean answer.
Try a scenario
Click to load — tweak from there.Inputs
Result
Estimated total cost
$13,000
Framing & drywall cost
$10,000
Flooring cost
$3,000
Psst — share this and help Rex grow
One click, a permanent link with your numbers baked in.
How to use this
- 1Enter basement area (sq ft).
- 2Enter framing & drywall price ($/sq ft).
- 3Enter flooring price ($/sq ft).
- 4Read your estimated total cost on the right — it updates as you type.
- 5Hit Share to keep the scenario or send it to someone.
About this calculator
Finishing a basement means framing new walls, hanging drywall, and installing flooring across the space. This calculator defaults to a 500 sq ft basement and breaks the estimated cost into framing/drywall and flooring based on editable price-per-square-foot inputs, giving you a combined total for budgeting the project.
Worked example
Using the values the calculator loads with:
Inputs
- Basement area: 500 sq ft
- Framing & drywall price: 20 $/sq ft
- Flooring price: 6 $/sq ft
Results
- Estimated total cost: $13,000
- Framing & drywall cost: $10,000
- Flooring cost: $3,000
What each field means
Inputs
- Basement area (sq ft)
- The basement area used in the calculation, measured in sq ft. Starts at 500 sq ft so you have a working example on load.
- Framing & drywall price ($/sq ft)
- The framing & drywall price used in the calculation, measured in $/sq ft. Starts at 20 $/sq ft so you have a working example on load.
- Flooring price ($/sq ft)
- The flooring price used in the calculation, measured in $/sq ft. Starts at 6 $/sq ft so you have a working example on load.
Results
- Estimated total cost
- Returned as a money amount in US dollars and shown as the headline result. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Framing & drywall cost
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Flooring cost
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
FAQ
How much does it cost to finish a 500 sq ft basement?
Typically $10,000-$25,000+ depending on region, finish level, and whether plumbing (like a bathroom) is added, since this calculator covers framing, drywall, and flooring only.
Does this include a bathroom or wet bar?
No, plumbing fixtures and rough-in work are priced separately and can add substantial cost — add that as a line item on top of this estimate.
Do I need a permit to finish a basement?
Almost always yes, especially if adding electrical, plumbing, or egress windows for a bedroom — check with your local building department before starting.
Accuracy and limitations
- Estimates assume standard, average conditions — local rules, pricing, and materials vary.
- Results are rounded for readability; add a buffer before ordering, booking, or committing.
- Double-check anything with a real cost attached against a local quote.
Related tools
Cite this calculator
Writing about this topic? Grab a citation — every link helps keep these tools free.
RevenueLab. (2026). 500 Sq Ft Basement Finish Calculator. Retrieved from https://www.revenuelab.fyi/toolbox/500-sq-ft-basement-finish-calculator
<p>Source: <a href="https://www.revenuelab.fyi/toolbox/500-sq-ft-basement-finish-calculator" target="_blank" rel="noopener">500 Sq Ft Basement Finish Calculator — RevenueLab</a> (2026).</p>
Source: [500 Sq Ft Basement Finish Calculator — RevenueLab](https://www.revenuelab.fyi/toolbox/500-sq-ft-basement-finish-calculator) (2026).