Re: CAN A FOUNDATION BE LAYED AT DIFFERENT LEVELS_? Hello If the redye basic upper elevation is different from the storey elevations entered in the general storey settings, the basic elevation can be adjusted using the elevation parameter in the raft basic settings. Take a section for control and you can check it with architectural section elevations. If the raft foundation plan is not completely rectangular, you can define each area with different dimensions with additional calculation axes. After defining the calculation axes, the working distances can be adjusted with the "Change the geometry of the reinforcement calculation axle" command. Pay attention to the working distances indicated by the arrows and the calculation axles for example in the picture.