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Because proper installation of a concrete pad requires considerable preparation before the concrete is poured, this is a project best left to experienced concrete contractors. 1  The average minimum cost per square foot for a concrete pad is $1.37.  The average maximum cost per square foot for a concrete pad is $1.77.
Since this is a labor-intensive project, the cost of labor will often be significantly more than the cost of the materials themselves. On average, the cost of installing a cement slab can run between $3 and $12 per square foot of space.etermine the Size and Depth of a Cement Slab. The cost of a cement slab is largely dependent on its size and thickness. In most cases, a cement slab will be 4 inches thick with 2 inches of the cement being below ground and 2 inches being above ground.