Have you got the little plastic stands for the rebar mesh for the floor, building inspector told me if he seen the mesh supported with bricks etc he would make me take them out. The best part was he told me it had to be a certain thickness mesh, but said I didn't have to fit any if I didn't want to. The mesh he said had to be 12mm thickness in diameter. These were £50 a sheet! I said if I don't have to put any in surely I could put 10mm thick mesh in ( only £18 a sheet ) He agreed so I put the 10mm stuff in.