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According to our concrete slab material estimator, the average minimum cost per square foot of a concrete slab is $1.36 and the maximum is $1.88. By comparison, the price per square foot for a cement slab is $5.50. Just know that even if you do not hire a pro, there are additional costs that come with all concrete slab projects.
Basic concrete patio costs: $6 to $10 per square foot. Custom concrete patio costs: $10 to $15 per square foot. Advanced or complex designs: $15 or more per square foot. Average patio costs: $2,800 to $4,000.hose opting for hand coloring, unique angles or a special design will see the price rise to more than $15 per square foot. The average price that homeowners pay for a concrete patio is around $2,800 to just over $4,000, but some homeowners report spending as little as $1,000 or as much as $6,500.