You can change the Structural Usage (either Retaining or Bearing) of a wall foundation in two ways. You can change the wall foundation to an appropriate wall foundation type or change its structural usage type properties.
To change the wall foundation type
To change the structural usage type properties
If you select Retaining, you can specify values for Toe Length, Heel Length, and Foundation Thickness. Toe and heel length define the width of the foundation. For more information, see Wall Foundation Properties.
If you select Bearing, you can specify values for Width and Foundation Thickness.