Hello, In the program, maximum percentage control is carried out on the beams. If reinforcement area/section area calculated in a section is less than the maximum marginal value entered in the beam parameters, it does not give a warning about that beam. If it is thought that the outgoing reinforcement will not fit into the cross-section, double row or bundle reinforcement can be applied. Here, the initiative belongs to the engineer. Double row reinforcement placement is not done automatically in the program. Note: There are perimeter curtains on the 1st basement floor in the project. Therefore, the floor can be considered rigid. For this, "Upper rigid basement number" -1 must be entered in Analysis Settings. Good work