Free foundation cost calculator for new or replacement shells: slab, crawl, or basement bands from footprint sq ft, soil and frost proxy, garage slab adder, regional index, contingency, low–mid–high USD, charts and scenarios—not geotech design or a bid.
Structural notice: This foundation cost calculator models new-build or replacement foundation shell planning bands (slab, crawl, basement) from footprint area and soil/frost narrative—not crack injection, not pier retrofit, and not geotechnical design. Stamped soils reports and engineered footings supersede any web table.
Summary: Enter main footprint (sq ft) the foundation carries, foundation system type, soil / frost / moisture proxy tier, optional attached garage slab add-on area, regional index, and contingency. You get low–mid–high USD bands, stacked and bar charts, and scenario rows for GC conversations—then get a geotech letter before you trust a midpoint.
Foundation cost calculator (new shell planning band)
Use it when search intent says foundation cost per square foot, basement foundation cost, or slab vs crawl space price for new construction or full replacement—distinct from the site’s foundation repair tool for stabilization of an existing failed wall.
