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Draw up where the metal channels for the shower screen will be installed using your spirit level.

 

Start your lines from the floor, making sure that the screen sits inside the lip of the shower base.

 

Then place the steel channels on the lines and screw them into place.

 

In this case we are screwing into a timber frame, but if you’re screwing into tiles or plasterboard reinforce the screws with nylon wall plugs.