Re: DOUBLE REINFORCEMENT ERROR IN FLOOR You seem to have a lot of errors in the geometry check. If you fix them first, you'll probably get past most of the problems you're talking about. In addition, you will be more comfortable if you do not use slab edge, but with the slab space command in the slab, such as small-sized chimneys and air chimneys. Try to make maximum use of the nodes when entering data. This will minimize your chances of making mistakes. Note: I do not want to comment on your static design. There's a lot to talk about. (beams that do not fully press the column, interior consoles, columns that do not overlap, columns that are not connected in one direction, etc.)