average price per square foot for slab texas
$5.28 - $5.88 per square foot (4 inch reinforced slab on grade). This is an average concrete foundation installation price. Also includes minor excavation, gravel base, steel reinforcing bars, and 4 slab. Additional cost for design, drawings, major excavation, piers, soil testing, columns, and deep foundations.5.33 - $5.93 per square foot (4 inch reinforced slab on grade). This is an estimated quote for concrete foundation installation. Price also includes grading, 4 thickness, gravel base, rebar, and basic finishing. Does not include design, drawings, major excavation, piers, soil testing, columns, and deep foundations.