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Concrete Foundation Installation - 97401, Oregon $6.35 to $7.06 per square foot (4 inch reinforced slab on grade) Manhours for concrete foundation installation are included in cost. Estimate includes grading, 4" thickness, gravel base, rebar, and basic finishing. Items excluded: design, drawings, major excavation, piers, soil testing, columns, and deep foundations.
Reported on June 4, 2018 by ProMatcher Research Team
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