All About Schluter KERDI-SHOWER Systems

Finished Schluter Shower - beige square - simpleTraditional tiled shower installations are time consuming, expensive, and leave your shower vulnerable to mold growth and efflorescence. Schluter offers a wide array of fully integrated components for building a compl
ete, high-quality shower assembly that incorporates superior waterproofing technology, which both simplifies shower installation and protects your investment.

KERDI-SHOWER Systems include drains, waterproofing materials and prefabricated substrates, such as curbs, benches niches, and trays, available individually or as part of a convenient, all-inclusive kit.



KERDI-SHOWER kits include everything you need to build a ready-to-tile shower assembly that is water-tight and mold resistant.  (Available in several different sizes & configurations.)

A. Shower TraySchluter Shower Cutaway - Annotated

B. Drain Kit

C. Shower Curb(s)

D. Waterproofing Membrane

E. Waterproofing Strips

F. Preformed Waterproofing Corners

G. Pipe & Mixing Valve Seals

Most KERDI-SHOWER Kits come also come with a KERDI-DRAIN Kit, though kits with no drain are also available.

KERDI-DRAIN / KERDI-LINE Drain & Grate Options

Schluter offers two elegant drainage options for your shower. Standard (round) drains and sleek, low-profile linear drains that can be installed quickly and easily into a KERDI-SHOWER trays or even a mortar bed. The benefit of installing a KERDI standard or linear drain is that waterproofing can be placed directly over the bonding flange, eliminating the risk of water and vapor penetrating the mortar and tile backing that contributes to the unwanted growth of mold and mildew.

Schluter KERDI-DRAIN Kits contain:

  • 1 drain body with integrated bonding flange with a 2″ or 3″ outlet*
    (Available in ABS, PVC, or stainless steel)
  • 1 square or round grate assembly
    (Available in Anodized Aluminum or Stainless Steel options with several different finishes)
  • Waterproofing materials
    • KERDI-SEAL (-PS, -MV)

*ABS, PVC, and no-hub stainless steel flanges come in 2 or 3 inch outlets.  The threaded style is available in stainless steel only, with a 2 inch outlet.

Schluter KERDI-LINE Linear Drains consist of:

  • A KERDI-LINE channel body/linear bonding flange*
  • A KERDI-LINE grate kit*

KERDI-LINE components are available in a wide range of sizes as well as two outlet configurations (center and off-set).  Schluter offers linear grate kits in 4 different cosmetic styles.

*KERDI-LINE channel bodies and grate kits are sold separately.



Schluter’s KERDI Sloped Prefabricated Shower Trays eliminate the need for a mortar bed, considerably reducing the time and labor involved in building a new shower.

They are compatible with all KERDI-DRAIN standard round drain kits, and come in six configurations:

  • 38″ x 38″
  • 48″ x 48″
  • 48″ x 72″
  • 72″ x 72″
  • 32″ x 60″ (centered drain)
  • 32″ x 60″ (offset drain)*


Schluter KERDI-SHOWER-L/LS Linear Shower Trays are compatible with all KERDI-LINE Linear Drain assemblies.

  • These trays come in 39″ x 39″ and 55″ x 55″ sizes each with center or wall drain configurations.
  • All KERDI-SHOWER Trays can be cut to size or extended using dry pack mortar.

*Trays with off-center drain placement work are ideal in a bathtub replacement application.


KERDI-BOARD Prefabricated Substrates

KERDI-BOARD Prefabricated Substrates are easily installable waterproof structures that allow you to customize the layout of your shower. They are lightweight, strong and stable components made with KERDI-BOARD, which means they come ready to tile, making them a high quality time-saving alternative to traditional shower structures built with mortar.

These shower components are available in a variety of formats to suit your installation needs.

Benches 400x300 Niches 400x300 Curb 400x300 Ramp 400x300
Benches-done 400x300 Niches-done 400x300 Curb-done 400x300 Ramp-done 400x300


If you are looking for a custom solution, KERDI-BOARD building panel is available at Warm Your Floor for local pickup and delivery so you can build your own substrate(s) on site.


KERDI Waterproofing

Schluter-KERDI waterproofing products protect tiled surfaces from the risk of mold and mildew caused by excess moisture getting trapped in the mortar and grout. Learn More

Schluter offers an assortment of KERDI waterproofing solutions:

•  KERDI MembraneKERDI before tile

•  KERDI-BAND Joint Strip

•  KERDI-KERECK/-KERS Preformed Corners

•  KERDI-SEAL-PS/-MV for Pipes and Mixing Valves

•  KERDI-BOARD Building Panel

•  KERDI-FIX Sealing & Bonding Compound

•  KERDI systems are ideal the construction of steam showers & limited mobility assemblies.

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