Wet Room Kit: Tileable Shower Tray, Including Waste Trap And Drain Cover
Technical Diagram Of Showerlay Wiper 800 X 800 Mm Line Premium
Wet Room Tray Shown With Waterproofing Kit
Close Up On The Carefully Finished Edge Of The Frame And Cover
Back Side Of The Tray, Showing The Waste Connection Outlet
Another Look On The Frame And Drain Cover
3 Standard Thicknesses Available - Thicker Tray Means Better Slope And Insulation
Included Waste Trap McAlpine HC26 - 50, 26 L Min Of Flow Rate
Waste Trap Split Into Parts
Example Of Finished Wet Room With The Tray Available Here - Screen Parallel To The Wall
Example Of Finished Wet Room With The Tray Available Here - Classic Corner Installation
  • -15%
Wet Room Kit: Tileable Shower Tray, Including Waste Trap And Drain Cover
Technical Diagram of Showerlay Wiper 800 x 800 mm Line Premium
Wet Room Tray shown with Waterproofing Kit
Close up on the carefully finished edge of the frame and cover
Back side of the tray, showing the waste connection outlet
Another look on the frame and drain cover
3 Standard Thicknesses Available - thicker tray means better slope and insulation
Included Waste Trap McAlpine HC26-50, 26 l/min of flow rate
Waste Trap split into parts
Example of finished Wet Room with the tray available here - screen parallel to the wall
Example of finished Wet Room with the tray available here - classic corner installation

Showerlay Wiper 800 x 800 mm Line Pure

Wet room tray 80 x 80 cm for tiled floor with integrated stainless steel linear end drain, waste trap and cover model Pure

11 Reviews
See parts included Technical specification Bespoke Wet Room Trays

Wet room Kit Showerlay Wiper 800 x 800 mm Line Pure is a walk in shower tray with end linear drain. Former is available in three thicknesses, has 2% fall towards the drain, provides great acoustic insulation and is also lightweight while very strong.

Former comes with integrated and waterproofed stainless steel linear channel, suitable McAlpine siphon trap with 26 l/min capacity and grate. Pure is a slot cover, should be filled with tiles so after the installation only visible part of the tray would be the channel. Drainage is 500 mm long and 80 mm wide while grating width is 64 mm. It protrudes above the shower tray by 15 mm and below by approximately 5 mm. Steel is finished with a brush, which is practical and particularly suitable for most architectural applications.

Preformed 800 x 800 mm board is the smallest square shaped tray we offer. It allows you to create an elegant shower, even in a small bathroom. It will not only look beautiful but will offer easy, step-free access.

Tray size

Showerlay is a wet room tray available in 14 standard sizes. The drain is located parallel to the shorter edge. A larger tray offers more space for greater comfort. Your tray size should be chosen to match room and enclosure size. Our trays can be trimmed down to size or to avoid obstacles.

Drain Cover
  • Pure (tileable)

There are 7 drain cover patterns available. The flow rate is the same for all of them. They are interchangeable and can be swapped even after installation. Each drain sent out is equipped with a lifting hook which makes cleaning easy.

Thickness

Thickness of the board on the edges. It has 2% gradient on the entire upper surface and is shallower near the drain. The benefit of thicker tray is steeper slope, although even the shallowest trays have sufficient slope for water to flow towards the drain, no matter where it drops.

Waterproofing kit

Waterproofing kit is used to seal shower tray as well as connections between walls and floor. It is recommended for concrete and mandatory for timber flooring. Each kit contains 4kg tanking liquid, 1l primer, 10m sealing tape, 2 corners, 2 pipe collars. One kit covers 3 m² with 2 coats. Waterproofing kit

Underfloor heating kit

Complete Sunfloor Underfloor heating set, including mat, Wi-Fi thermostat, floor sensor and fitting instructions. Fully suitable with our other products. Advanced thermostat with and iOS/Android app allows to set desired temperature of the floor from distance as well as create schedules.
Complete Sunfloor Underfloor heating set

Tile Backer boards

Tile backer boards are used to create the perfect substrate to tile onto in wet rooms and bathrooms. Superior to cement boards and plywood, due to its waterproof and thermal insulation properties. Tile backer boards

Shower screen

The Wiper Verre Shower Screen is one of Wiper's new shower enclosures. It is available in multiple standard sizes making it fit in small and large wet rooms. Black and silver options make it looks minimalistic and modern. Perfect choice for any wet room upgrade. Made of 8 mm toughened clear glass with Active Shield coating, 2000 mm high. Included fittings are made of stainless steel. The Verre Shower Screen from Wiper

TLB8852PU
Check stock live

Amount of products available off-the-shelf. If order is placed before 3pm, it will be shipped same day with free next business day delivery.

Quantity available in stock for next day delivery:

  • Thickness: 20 mm pieces x 37
  • Thickness: 28 mm pieces x 10
  • Thickness: 35 mm pieces x 3
Total available in stock: 50 (This variant: 37)
Same day shipping and delivery on Monday if you order in next 0 hours 00 minutes and 00 seconds
£284.49 £334.69 -15%
Tax included
Amount Of Product Sales 25 Sold during the last 30 days
Amount Of Product Views 1084 Views during the last 24 hours
Based on current settings, if you Add to cart current set and then order, you will receive the following items:
Waterproofing Kit

Size: not included

Underfloor Heating Kit

Size: not included

Shower Screen

Size: not included

 
  • Dimensions as described on equivalent technical drawings,
  • If needed, the tray can be easily shortened in its length or width, using a handsaw,
  • Make sure you cut it for equal distances from both sides to preserve pre-made fall to the drain,
  • Drain channel is located centrally, across the shorter edge.
  • Designed especially for range of Wiper Premium drains,
  • Drain is built into the tray during the manufacturing process,
  • Our showerlay is a 20/28/35 mm XPS foam sheet covered on both sides with a flexible cementous glue and reinforced with a fibre glass mesh,
  • The showerlay is CNC machine cut to give a perfect pre-formed fall from each corner to the drain,
  • It is lightweight but very strong,
  • Perfect solution for British wooden floors but can also be used on concrete floors. When it is used on wooden floors,the floor must be underboarded after floor boards have been removed,
  • Standard and minimal underboarding should be 20 mm thick,
  • Ideal for tiled floors. Because of the high compressive strength of the XPS foam, it can even be used with small mosaic tiles. This is not suitable for vinyl floor coverings,
  • The Showerlay can be easily cut on site should you have any obstacles such as pipe boxings,
  • Easy to use with under floor heating systems (should be installed on top of the shower tray)
  • One hundred per cent, double waterproofing,
  • Hardness of the surface layer allows to cement even very small mosaics,
  • High acoustic and thermal insulation,
  • After installation, the plates should be supported over the entire surface.
Product is suitable for:
Timber floor Concrete floor Tiles Mosaic

Wet Room Kit Advantages

Channel length
500 mm
Grate style
Pure (slot)
Height
800 mm
Width
800 mm
Thickness
20 · 30 · 40 mm
Trimming
Both sides: up to 50 mm.
Material
XPS foam sheet
Reinforcement
Fibre glass mesh & cementous glue.
Fall
4-way 2% towards the drain
Additionals
Tanking kit
Drain surface
brush
Cleaning
From above (Easy clean system)
Model
Line
Set consists
Wet room tray · integrated linear drain body · drain grating · siphon trap
Size
800 x 800 mm
5901797276478
Tanking Liquid

The tanking kit is a ready-mixed, under-tile tanking system to protect water sensitive substrates from exposure to water. Suitable for wet areas such as bathrooms, showers in residential buildings, hotels, old people's homes and hospitals. Should not be used in places exposed to pressurised water, for an instance swimming pools. Ready to use, no mixing required and easy to apply with a roller. The kit includes a high performance joint reinforcing tape to protect against movement in floor joins and corners etc. The contents are all INSIDE the bucket and the contents are protected in the bucket with polystyrene infill's to stop transit damage.The instructions are printed on the rear of the tanking kit.

For anti-moisture insulation systems in wet rooms and rooms intended for human residence. The tanking liquid is a ready-to-use singlecomponent, solvent-free sealant composed of polymer dispersion, fillers and modifying additives. When applied to the surface, upon binding it creates a flexible and water-insulating layer.

Tanking Liquid
Tanking kit contains:
  • 4kg Tanking Liquid
  • 1l Primer
  • 10 Metres flexible Sealing Tape
  • 2 Flexible Pipe Collars
  • 2 Corners

Features:
  • Consumption to 1,2kg/m²
  • Solvent free
  • Drying time: 2h
Tanking Liquid

Tanking liquid
The tanking liquid is a ready to use, single component, solvent-free sealant mass, consisting of polymer dispersion, fillers and additives. When applied to a substrate and cured, it forms a flexible waterproofing coating. The product is intended for use inside places intended for human residence, especially in humid areas (such as bathrooms, kitchens, laundries), to perform insulation against moisture under linings and coverings, such as ceramic tiles, glazed tiles, terracotta, wooden floors and panels, and synthetic carpets.

Primer

The product is intended for priming absorbent and porous surfaces, inside and outside buildings. It is especially recommended for cement - limestone plaster, gas concrete, plaster-carton boards and cement plaster. The primer has a high penetration ability, is deeply absorbed into the substrate, thus strengthening it, while allowing for „breathing”. These benefits improve the structure of the substrates, which, due to the passage of time, have lost their appropriate parameters. The priming solution improves adhesion to the surface of other materials that will be used on the primed substrate. By reducing the absorbency of the substrate, the wear of the applied coating materials, emulsion paints, glues, mineral putties reduces as well. The solution, due to the content of the biocide and fungicide, protects the primed substrate against the formation of mold and bacteria in the product.

Ufh Mat
Complete Underfloor Heating Kit
It is possible to include a complete Underfloor Heating Kit to your order. All you need to do is to choose the required size. Additional package, with heating mat, appropriate thermostat, sensor and instructions will be dispatched together with the other goods.

To calculate required mat size you need to get square coverage of the floor and exclude any permanent / fixed fixtures from them. It is also recommended to buy slightly smaller mat than calculated size - you can shape it but cannot cut the cables, therefore too large mat could not be installed.

SUNFLOOR Underfloor Heating
The SUNFLOOR Electric Heating Mat is a unique type of floor heating mat. The system has been designed to be used on an existing tiled floor or an existing finished floor, so that floor heating can still be installed there. The mat is approximately 4 mm thick and can be included in a layer of adhesive without any demolishing or grinding. The mat fits virtually underneath the surface. This decreases the heating time of the floor, that also makes this system suitable for rooms that are not permanently occupied including bathrooms, studies, playrooms, etc.

Heating mat
Underfloor heating mat set consists of all necessary parts for installation. One Thermostat is needed for every 23 m² of heating mat. It is included as optional, to allow ordering mat for custom areas, for example if you need 13 m² of mat total, you should buy 10 m² with one of the thermostats set as include and 3 m² with thermostat not included. In case you require less mat coverage than possible to buy from our product pictures, for example 14.5 m² you should always round low with your purchase and buy 14 m² as the mat is impossible to cut. It can be shaped but not shortened to size.

  • 2.5 meter 3-core supply cable
  • Fully encased in an aluminium earthed sheath
  • Unique blind connection between the heating and the connection cable
  • Chrome/Nickel resistance wire
  • PTFE (Teflon) insulation
  • PVC protective sheath
  • 10 -11 watt per meter resistance wire, 230 Volt
  • Cable diameter approximately 4 mm
  • Complies with current NEN standards for installation in completely wet rooms
UFH Sunfloor Thermostat
Thermostat

The C16Wi-Fi is an intuitive programmable thermostat used to control the electrical floor heating system or water heating system. It will keep home comfortable temp whilst minimizing energy use. Install the app on your smartphone to control the heating system remotely with the WiFi thermostat.

Specification:

  • Voltage: 230 Volt - 50/60 Hz
  • Maximum load: 16A / 3600W
  • Temperature range: +5 to +40°C
  • IP class: IP21
  • Testing: CE
  • Cable spec.: ≤ 2,5 mm²
  • Standby power: ~ 2W
  • Size: 85 x 85 mm
  • Integral room sensor and floor sensor
  • Colour: white or black
Magnum X - Treme Control
This stylish, colourful and refined digital clock thermostat has been specially designed for electric heating systems. The MAGNUM X-treme Control is supplied with every MAGNUM floor heating set (Mat,Cable and Foil types), including external floor sensor, a built-in air sensor and three different frames that suit most brands of switching equipment. The MAGNUM X-treme Control is simple and intuitive to operate using touch sensitive buttons under the display. The new chameleon function is simple to adapt to the colour of your interior. The stylish screensaver shows the time, temperature and current mode without touching the thermostat. The MAGNUM X-treme Control has a new help function that appears after 10 seconds in the menu with a complete description of the setting in question. The MAGNUM X-treme Control also has a wooden floor function whereby the temperature is limited to 28°C. This makes the MAGNUM X-treme Control the idea and safe solution for every electric heating system.

Specification:
  • Voltage: 230 Volt - 50/60 Hz
  • Maximum capacity: 16A - 3600 watt
  • Temperature range: +5 to +40°C
  • Frame: IP21
  • Color: Polar white (RAL 9010)
  • Testing: FI/CE
Technical details:
  • Control via touch sensitive keys
  • Chameleon function (8 colour themes)
  • Screensaver night clock
  • Automatic start-up menu
  • Slow start-up function
  • Wooden floor function (28 °C limit)
  • Automatic summer and winter times
  • Multi-programme function (2 periods per day)
  • Programming multilingual
  • Including floor and air sensors
  • Multi-frame adapter system for: Gira, Jung, Elko, Merten, Busch Jager, etc.
Magnum Manual Thermostat
In some situations the digital regulation is not required and so the preference is for a simple on/off operation. Specifically industrial applications where the heating must remain on at all times. Therefore MAGNUM has designed the Standard Control: a simple on/off thermostat with temperature regulation that is clearly easy to operate.

Specification:
  • Voltage: 230 Volt - 50/60 Hz
  • Maximum load: 16A / 230 V
  • Temperature range: +5 to +40°C
  • Housing: IP21
  • Color: Polar white (RAL 9010)
  • Testing: CE
Technical details:
  • On/off thermostat complete with temperature regulation
  • Including floor sensor
  • Integral room sensor and floor limit sensor
  • Multi frame adapter system for: Gira, Jung, Elko, Merten, Busch Jager, etc.
Our wet room kits are available in three thicknesses: 20, 28 and 35 mm. Depending on space, floor type, and desired gradient you can choose best option for you.

If you have timber floor - existing floor board thickness. Usually they are 20 or 28 mm thick, in that case you should go for adequate thick wet room kit, to avoid floor height increase and step ups. If you want to achieve stepped up floor, 35 mm thickness might also be a good choice. If case of concrete floor, every thickness is suitable, if you're going to screed the floor you need to shutter the future shower area off and leave proper space for tray to be inserted in the future. If screed has already been done, you will need to use jackhammer or similar tool to groove exact tray thickness and shape when the shower is going to be created. In case of both floor types, every shower tray thickness is enough to bear human weight, as it needs to be underboarded beneath entire surface either with ply or solid concrete. The biggest difference between thicknesses is the slope's angle achieved after installation is completed and shower tray tiled.



20 Mm Thick Wet Room Kit 800 X 800 Technical Drawing
Documents available below are available to everybody for free to download. They can be open in high quality on your computer and be printed for further use.

Showerlay Timber Fitting InstructionsShowerlay timber floor installation Showerlay Concrete Fitting InstructionsShowerlay concrete floor installation 20 Mm Technical Drawing20 mm technical drawing 28 Mm Technical Drawing28 mm technical drawing 35 Mm Technical Drawing35 mm technical drawing Long Term Warranty ConditionsLong term guarantee Mcalpine Siphon TrapSiphon technical drawing

Premium Drain

Integrated drain
Shower trays incorporate linear drain built-into the tray during the manufacturing process. Wiper Premium range linear shower drains are made from one piece of 304 grade stainless steel. Only the ends are welded. This means that the flange and drain body are made from the same piece of steel ensuring complete security from water penetration. Our flange is on all four sides of the drain. You will not find a better linear drain on the market.

Premium Drain Tech Drawing

  • Length (X): 500 [mm]
  • Height of channel (C): 30 [mm]
  • Height to the centre of waste pipe (G): 68 [mm] (can be adjusted)
  • Total height (H): 98 [mm]
  • Width of channel (Y): 84 [mm]
  • Width of insulating flange (F): 140 [mm] (included)
  • Flange to top edge of channel (T): 15 [mm]
  • High quality Mcalpine poly propylene syphon trap included
  • Easy clean system (cleanable from above)
  • Complete siphon, waste pipe diamter british standard size
  • Pipe height adjustable and rotatable at 360°
  • Drain's cover is included, please select desired design

  • Pure drain cover is an internal container that you can insert the tiles into. This type of drain is 100% tile-able.
  • Tile channel depth (A): 12 [mm]
  • Tile channel width (D): 60 mm [mm]
11 Reviews

800 x 800
Brilliant product. Very straight forward and very easy to install. Would certainly recommend!!
By Nathan S on 22/04/2020

Good product, replaces a cheaper tray.
Good product replaces a cheaper tray.
By Josh on 09/04/2020

Lovely design and a joy to use
Lovely design and a joy to use. We love it. Great to use and just what we wanted.
By Jose on 31/03/2020

All ok
Used the shower trays many times before. Great product.
By Adam on 29/03/2020

very good
very good product
By Josh on 26/01/2019

xps
I have had installed like ten of those. The only concern that I have is how long the foam will keep its hardness and shape.
By ron on 08/11/2018

Compact
Not to spacious but will fit in any enclosure. Installation is easy peasy
By Ian on 03/11/2018

No doubts
it's simply good
By ewan on 02/11/2018

My wetroom is done
It looks great when finished. I really appreciate changing the grating for me for the tileable one so fast.
By Adam on 02/10/2018

just ok
nothing superior to be honest for that price.
By Roxane on 30/09/2018

so far so good
Installed ensuite for my client. Delivery and product quality bang on. Only gave 4 stars as yet to be tested.
By Tom on 21/09/2018
Is the siphon trap and drain included with the wet-room-kit-800-x-1200-line-sirocco?

Dear Jim,

I would like to confirm that suitable McAlpine siphon trap with pipe is included to this wet room kit. It is completely rotatable and it's pipe height can be adjusted so it gives flexibility to avoid the joists. It features flow rate of 26 l/min and water seal of 20 mm which prevents the air from getting back into the shower.

For the price visible on the product page you receive:

- XPS foam base with pre-machined fall from every corner of the tray to every corner of the drain, reinforced with fibre glass mesh and cement based glue,

- integrated and waterproofed stainless steel channel,

- grating pattern (6 available) - no impact on price nor on performance,

- McAlpine siphon trap with pipe,

Optionally you can include the waterproofing kit to your order, which is very useful especially for timber floor but also recommended for concrete floor.

If you have any questions I am here to help,

David 020 7193 0953


Can you confirm 1500x800mm line sirocco is currently in stock for dispatch this week?

Dear Robert,

I can confirm that we have 20 and 28 mm thick versions of this shower tray available for next day delivery, so if you place an order today before 2 o'clock you will receive it tomorrow. As 35 mm thick bases are not that popular, they are available within 3 business days.

Please let me know if you need any further assistance.

Adam

017 0927 3601


Hi guys, I am interested in 1200x800 tray, do you guys ship to France? Thanks

Dear Customer,

I can confirm that we can ship to any country within the European Union. Delivery fee may vary for other countries, but for France standard free delivery applies.

You can place the order online, there should be an option to choose France as country for delivery. If you find it troublesome please call me and I will try to help to place the order over the phone.

David

020 7193 0953


What is the estimated delivery time on this product.

Dear Customer,

I would like to confirm that this product is available in our Rotherham warehouse so if you place the order before 3 o'clock you will receive it next business day. There's also Morning delivery available for additional cost, please contact us if you're interested.

In case of any questions I am here to help.

Regards Peter

020 7193 5485


Can the linear drain be lift up for cleaning the hair etc?

Dear Customer,

I can confirm that the grating can be lifted up after installation is over, to access the siphon trap from above for cleaning. It can be simply opened and standard bathroom cleaning detergents can be used.

Linear drain channel is already integrated and waterproofed so it cannot be moved, however grating is removable part.

If you have any questions I am here to help.

David 020 7193 0953


Is this shower suitable for concrete floors?

Dear Customer,

I can confirm that this product is suitable for both concrete and timber flooring. There's only requirement that it needs to be underboarded beneath entire surface. You can see fitting instructions here:

Fitting instructions

If you have any questions I am here to assist.

David 020 7193 0953


Does the wetroom trays come with siphon trap waste etc ready to connect.

Dear Customer,

We include suitable McAlpine siphon trap with pipe to every drain we sell. It features 26 l/min capacity, which is slightly more than standard, 20 mm water seal and pipe diameter of 1.5''. It is completely rotatable and adjustable, which gives flexibility with fitting. Product has everything needed to be installed, so yes, it is ready to be connected to your waste system straight after unpacking.

David 020 7193 0953


I purchased your pure linear drain shower tray last year and I am only getting round to installing it now. I will have to bring the level up with backer board to get the tile up to the drain. What is best practice for applying the backer boards over ...

Dear Customer,

Tile backer boards need to have proper thickness. Distance from the shower tray surface to the top edge of the vertical frame of integrated drain is fixed, 15 mm, so is the maximum thickness for all your material that is going to be fitted on top of it. If your tiles are for example 8 mm, then 6 mm tile backer board should be used and 1 mm layer of tile adhesive.

Boards need to be cut diagonally, to match the angle of the premachined slopes on top of the shower tray. Backer boards can be stuck to the shower tray with tile adhesive, as the tray is covered with material that connects to tile adhesive well on both sides.

Hope that helps, if you have any questions I will be happy to assist.

David 020 7193 0953


Can shower tray be made measure?

Dear Customer,

I can confirm that we can create custom shower tray made to size, it would cost more and we would need more time to deliver (6 business days) but yes, we can basically create any shower tray which is smaller than 2000 mm x 1200 mm. It will probably cost more approximately £50 more than standard shower tray of similar specification.

Please send us dimensions, thickness, drain position, it's style and if you require any waterproofing kit to our email: shop@wetroomsdesign.co.uk. I will prepare proper technical diagram, quote and will reply with all the necessary details.

I am happy to help in case of any questions.

David 020 7193 0953


Hi mum is now disabled I have to install a wet room ...her bathroom now is a 1700 £ —900 bath shower a toilet and basin total room size 5m2 on a concrete floor could you please advise me on what I will need for this job Thanks Graham Dewey ...

Dear Graham,

I am sorry to hear about your mom, we've got an article that you might find interesting: 3 More Benefits of a Walk In Shower When You Have Mobility Issues.

Regarding your query, 900 x 1700 is one of our standard wet room kit size. They are available in versions with Linear or Square drain. Basically after buying them you will receive everything you need: 900 x 1700 premachined board (falls from every corner of the tray to every corner of the drain) integrated stainless steel channel, grating pattern (6 available) and suitable McAlpine waste siphon trap. 

In addition, you can choose to include the waterproofing kit. Each kit increases the price by £59, so if you went for 6m2˛, it would cost additional £118 total. With the waterproofing kit, you have everything you need to fit the wet room kit and seal it, after doing this it's ready for tiling.

If you have any questions I will be happy to help.

Adam 017 0927 3601


Are your Showerlay Wiper shower trays suitable for a Vinyl Floor finish?

Dear Customer,

Only Showerlay Wiper Invisible are suitable for vinyl floor covering. Other shower trays have vertical frame of 15 mm, so you would need to accomodate that space (best with tile backer boards) to bring it to the frame level, so vinyl sheet is flushed with the drain. If you are able to do this, then you can use any Showerlay, if not, only Showerlays with Invisible drain will be suitable for you.

Peter 020 7193 5485


Is it necessary use tanking kit to install this tray?

Dear Simon,

The Showerlay comes with already integrated and waterproofed 500 mm long stainless steel channel drain. Shower tray itself doesn't require additional waterproofing, however we always recommend to do this, especially for timber flooring. Floor/wall joints as well as the splash area should be protected against water and that's where the tanking kit comes really handy.

Waterproofing kit which can be included to this product, is very efficient, one kit covers 3.2 square metres, contains 4kg tanking liquid, 1l primer, 10m sealing tape, 2 corners and 2 pipe collars. It can be purchased for £59 each, while normal price is £99.

If you have any questions I will be happy to help.

Adam 017 0927 3601


What shower tray thickness should I choose for my timber floor wet room? Do I also need tile backer boards to level up rest of the floor? Can I buy them in your store? Thanks

Dear Ryan,

There are 3 thicknesses available: 20, 28 and 35 mm and they state how thick shower tray is on the edges. They are much shallower near the drain, which is a result of having premachined diagonal slopes towards the drain.

Floor boards are usually 20 mm thick and to install the shower tray you need to remove them to expose the joists, create battons, fix them to the joists and then mount at least 18 mm thick marine ply between the joists. This will create solid even support for wet room kit, which requires to be underboarded beneath entire surface. 

By doing this, you will actually replace the floor board with tile backer board and this will allow to avoid total floor height increase.

Alternatively you can lay the shower tray straight on top of the floor boards but you will need to use tile backer boards to bring up rest of the floor height to the shower tray level.

You can find range of tile backer boards here.

Peter 020 7193 5485


Hi, can I trim this tray to the smaller size? I require 1120 mm x 820 mm in my wet room.

Dear Customer,

Our wet room kits are based on XPS material, which is flexible and can be safely trimmed. This can be done with a regular handsaw, is very easy and does not do any damage to the shower tray.

There's one recommendation from us,