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In most cases, the cost to pour a concrete patio falls between $8 and $12 per square foot. For a typical 200-square-foot concrete patio, you’re looking at an average price of between $1,600 and $2,400. Most concrete patios will be 4 inches thick, so thickness plays a minimal role in the price variance, but some types of concrete finishes can cost up to $25 per square foot, which has a major impact on your total.

Yes, you can pour a foundation slab without footings, in which case it’s often called a floating slab. Floating slabs don’t have separate footings poured beforehand for support, which means they’re better suited for smaller structures. Monolithic concrete slabs are another option for a slab foundation without standalone footings, although the vertical edges of the single-pour slab do act as footings.

Poured concrete should be set and hard to the touch within 24 to 48 hours, although it depends on the humidity in the air, the thickness of the concrete, and the type of concrete. It’s best to leave concrete to set for three days before exposing to foot traffic or stress. Concrete takes between 20 and 30 days to cure and reach its peak strength, so for foundations and retaining walls, plan to wait about a month before placing any load on your concrete.

You should water new concrete by spraying it five to 10 times per day for the first seven days. This process of moist curing allows the concrete to become as strong as possible to prevent cracks and weak concrete. Moist-cured concrete is 50% stronger than concrete that was not sprayed with water during the first week. The only exception is if you pour concrete in the winter. Then, spraying with water is not recommended.