If the floor is not level the shower pan will not be able to drain properly.
Shower tray installation on wooden floor.
Use a hammer and chisel or a handsaw to cut away the wood to make 10mm recesses for the shower tray.
The floor beneath your tray will need to be completely secure so position the shower tray where you want it to go and test that the floor is strong and solid enough to support it without movement.
This guide explains how to install a shower pan over existing plumbing.
How to install shower tray.
Installing or fitting a shower tray is very much dependent on the type of tray you are installing and the surface it s being installed on.
Remove the shower tray.
Roofing felt to spread out over the wooden subfloor.
If it s not then remove the floorboards from this area and replace them with marine plywood that is more.
How to install a low profile shower tray.
Fitting or installing shower trays can be a diy job but the utmost care must be taken to ensure that the tray is both fully sealed waterproof and also totally level on the base it s sitting on once it s in place.
The pencil mark on the wood is the top of the recess that the shower tray will fit snugly into.
If the subfloor is wood waterproof it before using self leveler and before spreading mortar or adhesive.
Lay the shower tray on the floor and outline its height on all of the wood that it leans up against.
Fix an uneven floor using a self leveler.