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Instructions on How to Fit a Shower Stall or Shower Cubicle and shower tray

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A Shower Stall / Shower Cubicle


Simon Phillips for

space allows, a separate
shower stall can be a convenient addition to
your bathroom, offering you the choice of a quick shower or a long
soak in the bath.   Installing
a shower stall does require a certain level of skill, but if you’re
confident in your DIY abilities, it should be relatively

need to attach your shower enclosure to a tray, which is essential for
containing the water before it drains away. 
Before you begin, you’ll need to ensure a drainage outlet is in
place to remove the water, and that the water supply pipes are
positioned correctly (it might be advisable to hire a professional to
do the plumbing bit). 

are some guidelines to help you install your new shower stall
correctly and with minimal upheaval.

fish, pipework and tap

the majority of cases, shower stalls are made up of a square shower
tray and two screen walls, and are fitted into the corner of a

The basic
techniques are the same regardless of the shape of the enclosure. 

A common problem when installing a shower stall is not having
enough space for the drainage pipe to run under the shower.  
A handy tip to get round this is to install the tray slightly
higher than floor level to accommodate the drainage requirements. 
This is why some showers have a slight step up to them.

One – Install the shower tray

To do this you’ll need the following tools:  
tape measure, pencil, jigsaw, cordless drill/driver, bucket,
pointing or gauging trowel, spirit level.


  1. Place
    your tray where it’s going to be installed and draw a pencil line
    onto the hardboard floor to mark the position.  
    Decide where the drainage pipes will be installed and cut
    out a small section of hardboard to make space for them. 
    Remember to check there’s adequate room on the outside edge
    of the tray to have an access hatch to the pipes.  
    Underneath the edges of the hole you’ve made, nail pieces
    of batten and then cut out a piece of hardboard to fit the hole
    and place it on top of the batten.

  2. Attach
    the waste outlet to the shower tray. 
    It’s important here to double check there are washers or
    gaskets fitted on each side of the waste opening to make sure
    there’s a watertight seal surrounding it. 

  3. Using
    4 parts building sand to 1 part cement, in your bucket mix up some
    mortar to a firm consistency.  
    Spread the mortar in sections on the floor where the tray
    is going to be fitted.

  4. Move
    the tray into position, letting it bed down into the mortar.  
    Use a spirit level to check that it’s level from all
    angles.  You might
    have to remove the tray and adjust the mortar beneath before you
    get it perfectly flat.

  5. The
    final step is to connect up the trap to the waste outlet and join
    it to the waste outlet pipe.  
    Shower traps are fairly shallow, as a deep trap makes it
    harder to get enough space or height for a good run on the outlet

Two – Fit the shower enclosure
plumber working on pipe

To do this you’ll need the following tools:  
tape measure, pencil, cordless drill/driver, spirit level,


we use the example of a cubicle with a hinged door, as this is the
most common type of shower door. 
However, there are several other types of doors available.


  1. The
    shower stall kit should come with specially designed channels that
    hold the sections of the enclosure to the wall.  
    You will need to place them in a perfectly vertical
    position on the corner edges of the tray before fixing them to the
    wall.  They will come
    with the relevant fittings included.

  2. Decide
    where you want the door to be and then take the side of the
    cubicle that’s to be fixed in place and slot it into the relevant
    wall channel.   Then
    place the opening section into the other wall channel and hold
    each piece in place so they join at the corner. 
    If you’ve got someone else on hand to help with this, it
    makes it a bit easier.

  3. The
    next step is to fix the sections in position. 
    Use your drill to make pilot holes through the wall
    channels and into the frame, using self-tapping screws to keep
    them in place.   Make
    sure you use drill bits to make your pilot holes smaller than the

  4. Attach
    the door handle using your screwdriver.

  5. The
    final and very important stage is to carefully fill in all the
    gaps around the internal edges and between all the joints with a
    silicone sealant, to ensure your shower stall is completely
    watertight and there’s no chance of leaks.  






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