![]() ![]() You don’t gain any additional storage space.Repairs can be expensive as it has to be drilled through to access plumbing pipes.It tends to shift and crack in soil with deep frost lines.It usually doesn’t promote moisture problems, especially if a vapor barrier is installed.Concrete doesn’t encourage bug or rodent problems.This is the cheapest foundation for a home.Poured Concrete Foundation Pros and Cons Pros If extra footings are required, add $6.53 per square foot to the cost. The average cost to build a 1,350-square-foot concrete slab foundation for a one-story home is $8,600. The total cost depends on the size, condition of the soil, location, and whether it's a monolithic slab, stem wall slab, or a raft foundation. View Pros Concrete Slab Foundation CostĪ concrete slab foundation costs $5.75 to $13.52 per square foot, with most homeowners spending between $5,750 and $20,280. ![]() A poured concrete slab costs between $5 and $14 per square foot, while an unfinished basement foundation averages $33 per square foot.įoundation Cost Per Square Foot House Foundation Types House Foundation Cost Calculator Square FeetĪ foundation costs $5 to $33 per square foot depending on the type. Design factors imposed by the buyer, lender, and local building codes.Site and ground conditions, including local flooding, earthquake, frost heave, wind, and termite prospects.Calculating your house foundation cost depends on: The type of foundation and depth dictate the cost of materials and labor. Table of Contentsįoundation installation prices include the cost of excavation, grading, and the number of footings. The main types of foundations are slab-on-grade, which is the most common and least expensive a crawl space foundation that has short walls, pier and beam, or a full basement foundation with 8’-10’ walls for living or storage.Ĭost of Foundations By Type Foundation TypeĪ correctly installed foundation holds the weight and load of the house in place, keeps moisture out, insulates against the cold, and resists the movement of the surrounding earth. A floating slab for a mobile home runs $4,600 to $14,000, while a standard 24’ x 24’ (2-car) garage foundation costs $3,100 to $4,800.Īverage Foundation Cost National Average Cost A typical 1,200-square-foot house foundation costs $6,900 to $16,200 for a concrete slab, or about $40,000 for a full basement (unfinished). ![]()
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