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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.
Simple concrete patio costs. A fairly small and simple concrete patio measuring 10 feet by 20 feet costs $1,000 to $2,000 as of 2010, according to the website Cost Helper. Although expensive for such a small area, this price includes professional site preparation, labor and concrete costs.