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Concrete patios in Winston-Salem, NC are priced per square foot, so start with your footprint: the two sizes we pour most are 20 by 20 at 400 square feet and 20 by 30 at 600. Three things then decide the price. Small patios cost more per square foot than large ones, because getting a crew and a concrete truck out is a fixed cost whether they pour 144 square feet or 600. The finish matters next, with a broom finish as the baseline and stamped work at the top. And a sloping back yard can add grading and fill that has nothing to do with the concrete itself.
Updated 2026-08-10 · Winston-Salem Concrete Co, Winston-Salem, NC
These are the patio footprints we get asked about most in Winston-Salem, compared against a 12 by 12 as the baseline. Because concrete is priced per square foot, these ratios hold whatever the rate is. Note that the smallest patio is the worst value per foot, for the reason in the next section.
| Patio size | Approx. sq ft | Relative to a 12 × 12 patio |
|---|---|---|
| 12 × 12 ft | 144 | Baseline |
| 16 × 16 ft | 256 | About 1.8× |
| 20 × 20 ft | 400 | About 2.8× |
| 15 × 30 ft | 450 | About 3.1× |
| 20 × 30 ft | 600 | About 4.2× |
A 12 by 12 patio sits at or below what many contractors treat as a minimum job, because the crew, the truck and the mobilisation cost roughly the same whether they pour 144 square feet or 400.
In practice that means very small patios often get quoted higher than the per-square-foot maths suggests, and some contractors will decline them outright. If you are close to the line, it is often worth pricing a larger footprint at the same time.
The slab underneath is the same. What changes is the finishing stage, and that is where the cost spread comes from.
Patio quotes vary most on three things: whether the slab is reinforced, what the finish is, and how much grading or fill the site needs before forms go in. A sloping yard can add real cost that has nothing to do with the concrete itself. Ask each quote to state the finish, the reinforcement, and what site prep is included.
Useful reference: Winston-Salem concrete slab and patio cost data
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