Concrete patio cost guide
A concrete patio is a forgiving, popular project — a flat pad in the backyard — but the finish you choose swings the price more than the size does. This guide lays out the cost formula and shows where the money goes.
The cost formula
A patio is priced much like any flatwork: an area price plus a sub-base and any finish add-ons, with a contingency buffer:
Total = ( area × price per sq ft + sub-base + add-ons ) × (1 + contingency%)
You enter the prices from your own quotes. The concrete patio cost tool assembles the estimate, and patio cost per sq ft handles the simplest version — area times your rate.
A worked example
A 300 sq ft patio (say 15 × 20) at $9 per square foot: 300 × $9 = $2,700. Add $200 for the compacted sub-base, no extra add-ons, then a 10% contingency: ($2,700 + $200) × 1.10 = $2,900 × 1.10 = $3,190. A plain broom-finished patio sits at the lower end of the price range; the same pad in stamped or colored concrete can cost noticeably more.
Where the money goes
- Area × price per sq ft: the core of the job. As a labeled planning band only, patios commonly run roughly $6–$16 per square foot installed depending on finish; enter your quote.
- Sub-base: a compacted gravel layer for drainage and a stable base, so the pad does not heave or crack. Less critical than under a driveway but still standard.
- Add-ons: a decorative finish, integral color, a border, thicker edges, or extra control joints. This is where "same size, very different price" comes from.
- Contingency: a buffer for overruns; 10% is a reasonable default.
Thickness and reinforcement
A residential patio is typically 4 inches thick — it carries people and furniture, not vehicles, so it does not need driveway thickness. Wire mesh or light rebar helps control cracking. These are labeled planning values, not a structural design. If your patio doubles as parking or a hot-tub pad, treat it more like a slab and thicken accordingly (see slab-on-grade thickness reference).
Finish drives the price
The biggest lever on a patio budget is not square footage — it is the finish:
| Finish | Relative cost |
|---|---|
| Broom / plain | Lowest |
| Colored / integral | Moderate |
| Exposed aggregate | Higher |
| Stamped | Highest |
A stamped patio can cost roughly double a plain one for the same area, because it adds materials, release agents and skilled labor. Price the upgrade directly with stamped concrete cost and compare it against plain in stamped vs plain.
What is not in the square-foot price
As with any flatwork, watch for scope that a per-square-foot number hides: excavation and grading if the yard slopes, removing an old patio, truck access (a backyard pad may need a pump — see concrete cost per cubic yard), a sealer to protect decorative work, and local labor rates. Comparing bids only works when they cover the same finish, thickness and prep.
Shape, borders and curves cost labor
A patio's price is not just square footage × a rate; the shape of those square feet matters. A plain rectangle is the cheapest thing to form and finish. Curves, rounded corners, a freeform edge, a contrasting border band, or an inlay of a second color all add forming and finishing labor for the same area. None of this changes the volume of concrete much, but it changes the hours, which is why two 300-square-foot patios can be quoted very differently. If budget is tight, a simple rectangle in a nice finish usually buys more visual payoff than an elaborate shape in a plain one. Decide the shape and the finish first, because together they drive the labor line more than the size does.
Drainage, joints and making a patio last
The difference between a patio that still looks good years later and one that spiders with cracks is mostly in the details you cannot see from a price. A patio should slope slightly away from the house — a little pitch (often around a quarter inch per foot) — so water runs off rather than pooling or running toward the foundation. It needs control joints so it cracks on planned lines, a compacted base so it does not settle, and, if it is decorative, a sealer to protect the color. In freeze-thaw climates, avoid de-icing salts on new concrete, which can cause the surface to flake (spall). None of these are expensive on their own, but skipping them is the usual reason a cheap patio turns into an early repair — see crack repair and resurfacing for what that costs to fix later.
The bottom line
Budget a patio as (area × your $/sq ft + sub-base + add-ons) with a contingency — a 300 sq ft patio at $9/sq ft with a sub-base is about $3,190 at 10%. The finish you pick moves the number most, so decide that first, then price it in concrete patio cost. Every result is a planning estimate; get itemized quotes from licensed, insured concrete contractors.