Deck and Patio Cost Calculator
Estimate deck and patio costs by size, height, stairs, railing, surface material and local labor rates.
Pricing methodology reviewed August 2026 · Planning confidence range shown with every result
What this estimate includes
The calculator separates common material, professional labor, disposal, permit allowance and contingency costs. It also accounts for the project conditions selected above. Sales tax, engineering, hidden damage and unusual access may require additional allowances.
How to use your result
- Confirm measurements at the project site.
- Compare at least two material choices.
- Print the report and request three local written quotes.
- Ask each contractor to identify exclusions, permit responsibility and cleanup.
Frequently asked questions
What makes a deck expensive?
Elevation, footings, framing spans, stairs, guards, difficult access and structural repairs can cost more than the visible deck boards. Composite surfaces do not eliminate the need for a properly designed structure.
Does an elevated deck require a permit?
Many jurisdictions regulate attached or elevated decks, but thresholds and submittal requirements vary. Confirm permits, footing depth, ledger attachment and inspections with the local building department.
Is composite worth the additional cost?
Composite can reduce staining and board-maintenance work, but product lines vary in heat, traction, fading, warranty and fastening systems. Compare full installed cost and expected ownership period.