Rotation of a Rigid Rectangular Footing - Infinite Soil Layer

More Cases

More Cases

Rigid Rectangular Footing

Notation and Units

Metric and Imperial Units

The above formulas may be used with both imperial and metric units. As with all calculations care must be taken to keep consistent units throughout with examples of units which should be adopted listed below:


  • B = width of foundation, ft or m
  • E = soil modulus, kip/ft2 or kPa
  • L = length of loaded area, ft or m
  • M = maximum bending moment, kip.ft or kNm
  • Ø = angle of interest, degrees
  • v = Poisson’s ratio