We've got a largish area of concrete slab to do - some farm roadway, some barn floor, some house ground floor slab. All had been SE designed for 200mm concrete with two layers of A393 steel mesh top and bottom, with 400mm edge thickenings where appropriate. This I felt was likely overdoing it, but that seems to be par for the course. Ground is clay and hoggin, then some crushed concrete over that, then 50mm concrete blinding.    There was going to be a large steel reinforcement cost fo