Foundation Calculator: Sizing and Materials

The FRELUX Foundation Calculator estimates foundation sizes and material quantities for building projects. Whether you need a strip footing, pad foundation, or raft foundation, this calculator provides preliminary sizing based on typical soil bearing capacities.

Foundation Types Supported

• Strip footing: for load-bearing walls in typical residential buildings.
• Pad foundation: for isolated columns and structural frames.
• Raft foundation: for soft soil or multi-storey buildings.

Important Note on Soil Testing

Soil bearing capacities shown are typical values for common soil types. A geotechnical investigation (soil test) is mandatory for actual foundation design. These calculations are for preliminary sizing and budgetary purposes only.

Related Calculators

• Structural Calculator: beam, column, and slab sizing
• Build-to-Roof Estimator: full construction cost
• Construction Sequence: step-by-step build timeline