Rectangular footing corner pressures

Calculates average pressure, eccentricity, and edge pressures for a rectangular footing with one-axis moment.

Helper calculation of average pressure as vertical load divided by area; it is not code-based design or soil capacity.

Helper calculation of eccentricity from moment and vertical load; it is not code-based design or capacity verification.

Calculates simple strip foundation volume from length, width, and depth.

Calculates indicative pile capacity from user-supplied base resistance, shaft resistance, and safety factor.

Calculates simple average soil pressure as load divided by base area.