In SHAPE‑MASSIVE, you can select the "Design" option for the reinforced concrete design.
In this case, an area of the possible reinforcement diameters can be defined when entering the reinforcement bars. In this defined area, the program can subsequently design a diameter that is in accordance with the bending design.
By specifying the concrete cover, it is possible to check whether the designed reinforcing steel diameter can be inserted or not.
If there is an overly large concrete cover or the required diameter is too great, you will get an error message after starting the calculation.