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How to fit a shower enclosure

Whilst plumbing and installation is best left to a qualified professional, if you’re competent at DIY, you can still save time and money by fitting your new shower enclosure.

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There are a great variety of shower enclosures on the market for you to choose from, with different styles, shapes, and purposes. For example:

What is a shower enclosure?

A shower enclosure is a standalone cubicle, usually with one or two doors for access, which contains your shower. It is designed to channel waste water into the waste outlet pipe and keep water from splashing out into your bathroom. Shower enclosures usually have a shower tray which the enclosure rests on (unless you have a wet room).

8mm Walk In Shower Enclosure Pack 1400 x 900

Walk in shower enclosures are becoming increasingly common in contemporary bathrooms.

Before you do anything

Always unpack your shower enclosure immediately after delivery. Check for any damage or faults as it’s better to find them now, rather than during installation.

Always turn off your water at the mains before attempting any DIY in the bathroom.

Tools you’ll need:

Check you have the following:

Time to complete: 1 day

Fitting your stone shower tray

At, you’ll find our stone shower trays are crafted from high quality, WRAS approved materials and include a stone resin core capped in an excellent impact and scratch-resistant ABS acrylic material for superb durability.

The following instructions are for fitting your stone shower tray without a riser kit. If you have an acrylic shower tray, please see instructions below.

Step 1

Place your shower tray where you want it positioned and draw round the edges with a pencil onto the floor. Make sure you also mark the position of the trap below the waste hole on your tray.

Step 2

Cut a hole in the floor using your jigsaw big enough to fit the shower trap. This will flow into the waste outlet pipe.

Step 3

Cut an access hatch into the floor next to the tray. You will need this to gain access to the space beneath the tray once it has been secured in place. Make sure you can comfortably get your arm into the hatch and access the waste outlet pipe and trap.

Handy hint: Make the hatch a permanent feature (just in case you need to access the trap in future) by screwing in place strips of wood beneath its edges. This will fix the flooring you cut out in position once you replace it.

Step 4

Attach the waste to the tray using the instructions supplied, ensuring rubber gaskets are fitted to each side of the waste opening making it completely watertight.

Step 5

Use a diluted PVA solution (one part water to five parts PVA) and spread this onto the area upon which your tray will rest, giving it time to dry.

Step 6

Mix some mortar to a firm consistency in a bucket (using four parts building sand to one part cement). Apply a thin layer to the tray area (around 25mm-30mm in depth).

Step 7

Place the tray on top of the mortar and let it rest into position. Check that it’s level from different angles using your spirit level. If required, you may need to even out the mortar to ensure a level finish.

Step 8

Smooth the mortar around the edges of the tray and allow to dry for 24 hours.

Step 9

Whilst it’s drying, you can reach into the access hatch and connect the trap to the waste and the waste outlet pipe. Make sure there aren’t any leaks.

Step 10

Seal around the edges of the tray using silicone sealant and your sealant gun.

Step 11

Replace the lid on your access hatch.

You’re now ready to move onto the enclosure itself.

Quadrant Stone Shower Tray 1000 x 1000

Our stone shower trays are made from stone resin and capped with acrylic for durability

Fitting your acrylic shower tray

Acrylic shower trays are much easier to fit than their stone resin counterparts.

The following instructions are for fitting your acrylic shower tray without a riser kit. If you have a stone shower tray, please see instructions above.

Step 1

Screw the adjustable feet into position using the instructions supplied.

Step 2

Fit your waste to the shower tray using the instructions supplied and fit to the trap.

Step 3

Place your shower tray where you want it positioned. Use your spirit level in different angles. If it’s not level, user your adjustable wrench to adjust the feet.

Step 4

Connect the waste to the waste outlet pipe.

Step 5

Clip on the side panels that will have been provided with your tray.

Step 6

Make sure there aren’t any leaks.

Step 7

Seal around the edges of the tray, including the sides and the join between the panels and tray, using silicone sealant and your sealant gun.

You’re now ready to move onto the enclosure itself.

Fitting your enclosure

As mentioned above, there are a wide range of shapes and sizes available when it comes to shower enclosures.

The following instructions are for fitting a square shower enclosure into the corner of a room (the most common position), where you will only require one side panel and door panel (the other two sides being made up by the walls of your bathroom). However, the same principles can be applied to other shower enclosures.

You may need a second person to help you with this part.

Step 1

Start with the channels that will fix your panels to the wall. Using your spirit level to ensure they’re vertical, place the channels at the corner edges of your tray.

Step 2

Using your electric drill, drill pilot holes in the wall. Insert rawl plugs and screw the channels to the wall.

Step 3

At this point, you need to know which side your door will be on. Once you have decided, take the side panel which will remain permanently in place and slot it into the appropriate channel.

Step 4

Fit the door panel into the other channel.

Handy hint: This is definitely the time to call on a friend or loved one to help.

Step 5

Both panels will now be positioned on the outside edges of your tray. You will need to fix them together at the corner, following the instructions supplied.

Step 6

Using your screwdriver, screw the panels into position using the fixings supplied.

Step 7

Fit the handle to your door.

Step 8

Seal around the outer edges of the enclosure using silicone sealant and your sealant gun. Don’t seal the inside edges.

Congratulations! You’ve now fitted your shower enclosure.

Whilst DIY can be a good way to save time and money, you should always hire a qualified professional to plumb and install your products. The instructions above are simply a guide to fitting your new shower enclosure and shouldn’t be used to attempt full plumbing and installation.

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