Re: BEAM FLOOR EDGE OVERCOME As far as I understand, you made the D12 slab on the ground floor with the intention of laying a raft at -400 level, but this data entry is incorrect. You used the tile tiling command instead of mat tiling. For this, you have to switch from formwork plan mode to architectural mode. Then you must enter the command mat tile edge and describe the tiling (mat tiling). Erase the existing tile edges as well.