Patio Cost Calculator: Build an Itemized Budget in 2026

A useful patio estimate starts with the area and the work included, not a single national price. The Patio Cost Calculator separates materials, installation labor, demolition, site work and contingency. Its starting amounts are illustrative: replace them with supplier prices and written contractor bids before making a spending decision.

How to calculate your patio budget

For a rectangle, multiply length by width in feet. Multiply that area separately by the material, labor and removal rates. Add fixed site-work and fee allowances, then apply contingency once to that subtotal. For an L-shaped patio, measure non-overlapping rectangles and add their areas; do not include the same corner twice.

Worked example: a 20-by-15-foot patio

• Area: 20 × 15 = 300 square feet.
• Materials at an illustrative $6 per square foot: $1,800.
• Labor at an illustrative $8 per square foot: $2,400.
• Removal at an illustrative $2 per square foot: $600.
• Site work and fees allowance: $500.
• Subtotal: $5,300; a chosen 10% contingency adds $530, for $5,830.

This is a calculation example, not a US average or a local quote. If your installer supplies an all-in rate, ask for its scope before entering it. An all-in price in both the materials and labor fields would count the same work twice. Set removal to zero if there is no existing surface to remove.

Make concrete and paver quotes comparable

Ask each bidder to describe excavation, base preparation, surface thickness or paver specification, drainage, edge treatment, cleanup and delivery. Record exclusions such as difficult access, unsuitable soil, steps, lighting or hauling. Material choice alone cannot tell you which bid includes the complete project.

Before you approve the work

Confirm setbacks, drainage requirements and any permits with your local authority. Keep water away from the house and ask the installer how the finished elevation relates to door thresholds and nearby drains. Use the contractor’s site-specific specifications rather than treating a calculator as a construction design.

Frequently asked questions

How much does a 300-square-foot patio cost?

With the illustrative rates in this guide it totals $5,830 including contingency. Actual cost depends on your quoted rates, surface, access, ground conditions and scope; the example is not a market average.

Does the calculator include permits?

Only the fee allowance you enter. There is no automatic permit decision or local fee lookup; obtain those details from the authority for your property.

Can I estimate a DIY patio?

Yes. Set paid labor to zero and include equipment rentals, delivery and other purchases in the fixed allowance. This does not mean your own time or the installation risks disappear.