I bought a curve fronted corner shower, quite a big one, with a coener base. the plumber had to fit the actual shower first which menat chipping into the plaster to bed in the pipes that he had to run from under the bath and thru the floor, (my bathroom is 10ft by 10ft) then he had to run the electrics too, don;t know but think they went under the floor too, then he plastered over the pipes and then fitted the tray and the drasinage bit, then he fitted the tiling sheets behind it, i used those instead of ceramic tiles, then he fitted the cubicle, and used the sealant on it, took him 2 days and he charged �400 i think, oh and he fitted an aluminium vertical tower rail at the same time and changed the bath and basin taps too.