The soil tables are used to define soil capacities relative to the footing minimum plan dimension and depth. They are also used to define the soil Modulus of Subgrade Reaction.

A fixed soil capacity and Modulus of Subgrade Reaction can be defined by selecting Empty Table from the Soil Wizard and entering values for the Soil Capacity and Soil Modules with zeros for the depth and plan dimension.

If a break in soil capacity based on footing depth or minimum dimension needs to be modeled, it can be defined by entering a small difference in the required dimension and the appropriate capacity. For example if the soil capacity increases from 4 ksf to 5 ksf when the minimum plan dimension is larger then 5ft then the two entries would be a capacity of 4 ksf at 4.9 ft and 5 ksf at 5.0 ft.

Information on the method used in interpolating the soil table is outlined in Section 4.4. Instructions on the use of the Assign Soil Properties and Soil Wizard can be found in the RAM Foundation Help, which can be accessed from the Help menu.