Prefabricated Waterproof Shower Bench Built for System Integration

The Schluter KERDI-BOARD-SB Prefabricated Waterproof Shower Bench is a ready-to-install seating solution engineered to integrate seamlessly with the Schluter shower system. Constructed from durable KERDI-BOARD panels, this bench eliminates the need for on-site framing and waterproofing fabrication.

Designed for both residential and commercial bathrooms, it simplifies shower construction while maintaining consistent waterproofing performance throughout the entire tile assembly.

Fully Waterproof and Tile-Ready Surface

KERDI-BOARD-SB is inherently watertight, providing reliable moisture protection inside shower environments. Its tile-ready surface allows direct application of ceramic, porcelain, or natural stone tile using thin-set mortar.

The bench also features a factory-designed sloped surface that helps direct water toward the shower floor, reducing the risk of pooling and long-term moisture buildup.

Key performance benefits include:

• Integrated waterproof core

• Sloped top surface for drainage

• Compatible with bonded waterproof tile assemblies

• Designed to maintain shower system integrity

Lightweight Yet Load-Bearing for Structural Confidence

Despite its lightweight construction, the KERDI-BOARD-SB bench is stable and load-bearing when properly installed. The rigid panel structure provides dependable support while remaining easy to transport and position during installation.

This balance of strength and reduced weight allows installers to:

• Speed up project timelines

• Reduce labor compared to site-built benches

• Maintain consistent structural reliability

It is an efficient alternative to traditional masonry or wood-framed shower seating.

Simplified Waterproofing with Preformed Corners

To streamline installation, each bench configuration includes prefabricated waterproofing components that simplify critical wall transitions.

• Triangular bench models include KERDI-KERECK 135° preformed interior corners and KERDI-KERS-B left and right bench corners

• Rectangular bench models include two KERDI-KERECK 90° preformed inner corners and two outer corners

These components reduce on-site detailing and help ensure reliable waterproof connections between the bench and surrounding walls.

Available in Triangular and Rectangular Configurations

The KERDI-BOARD-SB bench is available in both triangular and rectangular formats to suit different shower layouts and space requirements.

Ideal for:

• Corner installations (triangular design)

• Larger walk-in showers (rectangular design)

• Residential bathroom renovations

• Commercial shower facilities

• Barrier-free and accessible shower builds

This versatility allows designers and installers to select the configuration that best complements the shower layout.

Professional Shower Seating Solution for Modern Bathrooms

Schluter developed the KERDI-BOARD-SB Prefabricated Shower Bench to provide a dependable, waterproof seating option that integrates directly into its complete shower system. By combining structural stability, built-in slope, and simplified waterproofing, this bench supports efficient installation and long-term tile performance.

For contractors and homeowners seeking a streamlined, tile-ready shower seat, KERDI-BOARD-SB delivers reliable results with less complexity.