Design isolated, strip, and combined footings per ACI 318-19M. Perform bearing capacity, settlement, shear, and flexure checks instantly with interactive graphics and exportable PDF reports.
A comprehensive foundation design toolset built for practicing structural engineers.
Design all common footing types with automatic geometry sizing and reinforcement layout.
Verify soil bearing pressure against allowable capacity with automatic eccentricity corrections.
Estimate settlements using the subgrade modulus (Winkler spring) method for immediate deformation predictions.
Two-way shear check at critical perimeter per ACI 318-19 Section 22.6 with all applicable modifiers.
Beam-action shear verification at distance d from column face per ACI 318-19 provisions.
Calculate required steel area for bending in both directions with minimum reinforcement checks.
Verify footing stability against net uplift forces including self-weight and overburden resistance.
Account for groundwater level influence on effective soil stress and bearing capacity reduction.
Handle moments in both X and Y directions with kern distance checks and pressure redistribution.
Live plan view and section views rendered on HTML5 canvas, updating as you change parameters.
Full engineering calculation report with formulas, intermediate values, and code references.
Export professional calculation reports to PDF for documentation, review, and project records.
Get from inputs to a complete foundation design in four simple steps.
Input column loads, soil properties, footing geometry, material strengths, and water table depth.
The engine runs all checks instantly: bearing, settlement, shear, flexure, uplift, and eccentricity.
Inspect pass/fail cards, interactive plan and section views, and the full step-by-step calculation sheet.
Generate a professional calculation report with all inputs, results, code references, and graphics.
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