Wetroom showers

Discover how to create the ideal wetroom shower floor with Schlüter's shower trays and linear drains.

Floor-level shower with Schlüter-KERDI-LINE grate and frame combination in SOLID design polished stainless steel

Think wetroom. Think system. Think Schlüter.

Discover the innovative and reliable Schlüter wetroom shower systems. The linear drain of KERDI-LINE-G3 and compatible low height shower tray from the KERDI-SHOWER-LTS range are a duo that make transitions in a wetroom shower seamless.

Schlüter-KERDI-LINE-G3

Cutaway image showing the layers that build up a shower drain including waterproofing, timber floor and drainage © Â Schlueter-Systems
The KERDI-LINE-G3 can be installed in both timber and screeded floors

The Schlüter-KERDI-LINE-G3 has been specifically designed to simplify drainage from tiled showers and wetroom showers. Use in conjunction with the Schlüter-KERDI system components and other Schlüter products to provide a fully waterproofed integrated system solution. Key features of the KERDI-LINE-G3 include it's low height of just 78mm, compliance with BS EN 1253 and integration with other Schlüter products for a fully waterproofed system.

Schlüter-KERDI-SHOWER-LTS

Installation of the KERDI-SHOWER-LTS shower board © Schlueter-Systems
The low height shower tray of the KERDI-SHOWER-LTS range compliments the KERDI-LINE-G3 drain

Schlüter-KERDI-SHOWER-LTS is a range of shower trays with a preformed slope, one of which is low height and specifically designed to integrate with Schlüter-KERDI-LINE-G3 as part of a waterproofed system.

When paired with the Schlüter-KERDI-LINE-G3, the low height version simplifies creation of a level access shower area.

Whether used with a timber or screed substrate, all shower trays in the Schlüter-KERDI-SHOWER-LTS range can easily be cut to size, giving you full flexibility.

KERDI-LINE-G3 (outlet offset left) set components including KERDI waterproofing, water trap/seal, drain body, polystyrene channel support and drainage channel © Schlueter-Systems

Components of the Schlüter-KERDI-LINE-G3 set, with outlet off-set left

KERDI-LINE-G3 (outlet offset right) set components including KERDI waterproofing, water trap/seal, drain body, polystyrene channel support and drainage channel © Schlueter-Systems

Components of Schlüter-KERDI-LINE-G3 set, with outlet off-set right

KERDI-LINE-G3 (dual outlet) set components including KERDI waterproofing, water trap/seal, drain body, polystyrene channel support and drainage channel © Schlueter-Systems

Components of Schlüter-KERDI-LINE-G3 set, with dual outlet

KERDI-LINE-G3 (centre outlet) set components including KERDI waterproofing, water trap/seal, drain body, polystyrene channel support and drainage channel © Schlueter-Systems

Components of the Schlüter-KERDI-LINE-G3 set, with centre outlet

Stainless steel KERDI-LINE drain grate with square design © Schlueter-Systems

KERDI-LINE drain SQUARE design

Stainless steel KERDI-LINE drain grate with curve design © Schlueter-Systems

KERDI-LINE drain CURVE design

Tileable KERDI-LINE drain grate © Schlueter-Systems

Tiled KERDI-LINE drain grate

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KERDI-LINE-G3 (outlet offset left) set components including KERDI waterproofing, water trap/seal, drain body, polystyrene channel support and drainage channel
KERDI-LINE-G3 (outlet offset right) set components including KERDI waterproofing, water trap/seal, drain body, polystyrene channel support and drainage channel
KERDI-LINE-G3 (dual outlet) set components including KERDI waterproofing, water trap/seal, drain body, polystyrene channel support and drainage channel
KERDI-LINE-G3 (centre outlet) set components including KERDI waterproofing, water trap/seal, drain body, polystyrene channel support and drainage channel
Stainless steel KERDI-LINE drain grate with square design
Stainless steel KERDI-LINE drain grate with curve design
Tileable KERDI-LINE drain grate

Benefits of the KERDI-LINE-G3

CAD drawing illustrating the KERDI-LINE-G3 © Â Schlueter-Systems

  A height of just 78mm

  Complies with BS EN 1253 and BS EN 274

  Integrates with other Schlüter products for a fully waterproofed system from one manufacturer

  Intermediate/central and wall/perimeter options for a variety of design opportunities

Image showing lower legs of person standing in the shower © Schlueter-Systems

Size

Construction is expensive and maximising useable space is essential, especially when considering return on investment. One way to achieve this is to keep floor build-up to a minimum, however finding a drain that is low in height and meets the required performance criteria can be challenging. The KERDI-LINE-G3 offers a solution to this, and more.

  Overall height = 78mm

  Water seal = 50mm

  Horizontal outlet = 40mm ID/43mm OD solvent weld, easily converted to 50mm

  Choice of eight channel lengths, 500mm to 1200mm in 100mm increments

Paired with the low height shower board from the KERDI-SHOWER-LTS range, and you've got a system that has the potential to gain an extra floor in high-rise building projects.

Birdseye view of patterned stainless steel wetroom shower drain © Schlueter-Systems

Performance & compliance

Ensuring optimal performance with a shower drain is crucial for maintaining effective water drainage and preventing potential water damage in a bathroom. The KERDI-LINE-G3 is a drain that meets the criteria detailed in BS EN 1253, whilst fitting in the available space.

  • Water seal = 50mm - easily removed for cleaning

  • Water flow rate

    • 0.45 l/s (27l/min) single outlet

    • 0.80 l/s (48 l/min) dual outlet          

  • Anti-blockage as per 8mm ball bearing test

  • Odour tightness of 180Pa for 15 mins

  • Channel loading strength = class K3 (300kg)

  • Air tightness as per Building Regulations

  • Easy access for cleaning

System integration

© Schlueter-Systems

Investing in effective waterproofing solutions for in a wetroom or shower is essential for a durable and low-maintenance space that remains beautiful and functional for years to come.

A complete system solution that includes the drainage, waterproofing, lighting, even the finishing touches that avoid penetrating the carefully thought-out waterproofing such as storage, all from one manufacturer gives total peace of mind. 

The KERDI-LINE-G3 is a drain that can be installed with all of these securities, as well as a comprehensive system warranty when installed by an approved installer.

Design opportunities

Schlüter-Systems Kerdi-Line-Vario wins the Red Dot Award for Product Design. © Schlueter-Systems

The Schlüter-KERDI-LINE-G3 has a number of variations and configurations to make installation possible for any number of different site requirements. Whether installed in the intermediate/central or wall/perimeter position, Schlüter-KERDI-LINE-G3 can be used with a range of grate options to enhance the appearance of your bathroom or wetroom. These grate options are suitable for use with different thicknesses of floor tile and stone from as low as 6mm to 20mm and more, assuming a 4mm bed of tile adhesive.

Installation into a suspended timber floor

The Schlüter-KERDI-LINE-VARIO-S accessory is a hair trap specially designed for the KERDI-LINE-VARIO WAVE 42 shower channel. © Â Schlueter-Systems

When it comes to installing a shower drain onto a timber floor, there are a few key considerations to keep in mind. Proper installation is crucial for ensuring the longevity and functionality of the shower drain while also preventing water damage to the timber floor.

Before commencing it is important to confirm that the timber floor/substrate has been installed to BS 5385 - part 3 and is suitable for tiling.

P5 grade/green chipboard is not suitable and should be replaced with external grade plywood of 18mm thickness.

As well as being clean, dry and free from debris the timber floor must be flat, level and load bearing.

We recommend use of the G3 Installation Accessory. When it is used there is no restriction on tile size or thickness. Tiles smaller than 300mm x 300mm, or with a thickness less than 8mm, should not be used unless the sub-floor is constructed and strengthened using the G3 Installation Accessory.

By following these steps, installing a shower drain on a timber floor can be a seamless process that ensures long-term durability and efficient water drainage.

KERDI-LINE-G3 installation video