I am planning a bathroom refurb. The room is just about 1500mm wide and the proposal is to put a shower across the whole width. I can find shower trays at 1500 and 1400 wide. 1500 just won't do - it will be either too big or too snug even if I can get it in place so 1400 shower tray it will be. What do I do with the spare space? I am guessing it will be 75 - 80 mm to fill in along the floor. Is there a good way of doing this? It needs to be totally watertight. Tim W
shower tray spacer/filler strip
Aug 20, 2025
Last reply: 10 months ago
8 Replies
Reduce the width: a stud wall with cementitious "backer board" - hardiebacker. Also, a couple of things that you probably know ... tile down to the tray (don't tile first) and bed quadrant beading into the silicone to make a bomb-proof seal between the tray and tiles (it also reduces the visible area of silicone that can grow mould).
TimW snipped-for-privacy@nomailta.co.uk> wrote in news:1084tl8$earo$ snipped-for-privacy@dont-email.me:
Think again and make the 1500 fit, anything else will look s*it. Whether it is cutting into walls or trimming the tray, make it work for the 1500 and you wont be sorry.
+1 to the stud wall and tile backer board. I was able to hide all the pipework for the the two shower heads within the studwork having brought the pipes across the ceiling from the airing cupboard where the digital shower mixer is and installed a false ceiling to conceal the pipe run.
Richard
+1 to the stud wall and tile backer board. I was able to hide all the pipework for the the two shower heads within the studwork having brought the pipes across the ceiling from the airing cupboard where the digital shower mixer is and installed a false ceiling to conceal the pipe run.
Richard
+1 I was about to say something similar. A few years ago I installed a bath that was slightly overlong for the space and cut a slot into the wall to get it in.
So have I many years ago. The tiles then overlap nicely.
But the other suggestion to knock up a false wall that you can even put pipes behind - has a lot of merit too.
I did that in my kitchen when I had a wonky wall that wasn't quite square. Used MDF to make a true wall and ran cables behind it..
I'd suggest you put the shower controls on that wall, rather than under the head, if you can manage it. It's much nicer not having to put your arm under an ice cold stream of water in winter when you turn it on.
We have a fixed "rainfall" shower head, controls on the side wall, and it all runs fine from the pressure from the loft tank. It's a downstairs shower in an old cottage, so that's probably about 3m of head.
Andy
My thoughts too. If 'just' then apply a means of opening up the aperture. Remove plasterboard or chisel plaster.
Also before embarking on the project check how much wiggle room you have for the doors.
It would be so much easier than fitting a false wall. Pipes behind false walls are very nice until there's a problem.
Join the Discussion
Have something to add? Share your thoughts — no account required.
Didn't find your answer?
Ask the community — no account required