Best Pre Sloped Shower Pan for Tile Installations
Choosing a pre-sloped shower pan can streamline tile work and ensure reliable drainage. This guide highlights five Schluter Kerdi prefabricated sloped shower trays and a practical third option, focusing on watertight installation, tile-ready surfaces, and flexible drain configurations. Each product is evaluated for size options, center or side drain placements, and overall compatibility with standard 36″ x 60″ or 60″ x 60″ shower layouts.
| Product | Size (L x W) | ||
|---|---|---|---|
| Schluter Kerdi KST965/1525S | 38″ x 60″ | Off-Center | Lightweight, ready to tile |
| Schluter Kerdi KST965/1525 | 38″ x 60″ | Center | Lightweight, ready to tile |
| JIANBENKJ Shower Pitch Kit | 36″ x 60″ | Center Ring | Pitch kit for quick slope setup |
| Schluter Kerdi KST915/1220BF | 36″ x 48″ | Center | Ready to tile, multiple size options |
| Schluter Kerdi KSLT915/1830S | 36″ x 72″ | Side | Wide tray, versatile drain placements |
| Schluter Kerdi KST1525 | 60″ x 60″ | Center | Standard large-format option |
| Schluter Kerdi KST1220BF | 48″ x 48″ | Center | Balanced, reliable tile-ready base |
| Schluter Kerdi KST915BF | 36″ x 36″ | Center | Compact, easy install |
Introduction: This article spotlights practical, tile-ready pan trays designed to simplify installation and reduce potential leaks. Each option is evaluated for its waterproof shield, tile-ready surface, and layout flexibility, with attention to center vs. off-center drains and the most common shower dimensions used in American homes.
Schluter Kerdi Prefabricated Sloped Tray, Off-Center Drain

The Schluter Kerdi KST965/1525S is a pre-sloped shower tray designed for waterproofing and fast tile application. It includes a built-in waterproof shield using Schluter-KERDI, removing the need for a traditional mortar bed while maintaining a watertight seal beneath the tile surface. The tray is lightweight, facilitating easier handling during installation, and is offered in multiple sizes, including off-center drain models to accommodate varied layouts. The design supports quick tiling and reduces prep time, making it suitable for both minor renovations and full-scale shower remodels.
Key features include:
- Built-in Waterproof Shield integrated with KERDI waterproofing
- Ready-to-tile surface for immediate installation
- Flexible size options, including off-center drain configurations
Schluter Kerdi Prefabricated Sloped Tray, Center Drain

This Schluter Kerdi KST965/1525 center drain version provides the same waterproofing and tile-ready benefits as the off-center model but places the drain centrally. It remains lightweight and easy to install, with a robust base that supports rapid tile setting. The tray is part of Schluter’s Kerdi line, ensuring long-term watertight performance with consistent drainage across various tile patterns. It is compatible with standard 36″ x 60″ showers and other common layouts, offering dependable installation for new builds or remodels.
Highlights include:
- KERDI-based waterproofing shield
- Ready-to-tile surface for faster tiling
- Multiple sizes, including center drain configurations
Shower Pitch Kit for Sloped Shower Pan

The Shower Pitch Kit by JIANBENKJ provides a practical approach to creating accurate drainage slopes on standard shower bases. It is designed to fit typical 36″ x 60″ shower areas with central drainage outlets. The kit includes center-ring guidance and float sticks to simplify achieving a consistent 1/4″ per 12″ slope, reducing the need for manual leveling and guesswork. This kit is especially helpful for replacing a damaged tray or retrofitting a non-sloped floor to meet modern drainage standards.
Key points:
- Aligns with standard 36″ x 60″ showers
- Guided slope with floating sticks for accuracy
- Suitable for center-drain designs and customized layouts
Schluter Kerdi Prefabricated Sloped Tray, 36″ x 48″

This Schluter Kerdi KST915/1220BF option offers a 36″ x 48″ tray with a center drain. It benefits from the same Kerdi waterproofing system and tile-ready surface, enabling straightforward installation. The center drain configuration is compatible with common shower layouts, providing a balanced drainage solution for mid-sized shower enclosures. As with other Kerdi trays, this model reduces prep work and helps ensure a durable, watertight installation.
Important details:
- KERDI waterproofing shield
- Ready-to-tile base for rapid installation
- Multiple size options, including center drain configurations
Schluter Kerdi Prefabricated Sloped Tray, 60″ x 60″

The 60″ x 60″ Kerdi tray with a side outlet (KSLT915/1830S) provides a roomy base for larger showers or retrofit projects where a side drain is preferred. It integrates Schluter-KERDI waterproofing to ensure a watertight installation beneath the tile surface. Ready-to-tile features and a range of drain placements make this tray adaptable to both new construction and remodeling. This option supports complex configurations and helps maintain consistent drainage across surfaces.
Notable aspects:
- KERDI waterproofing and tile-ready surface
- Side outlet option for versatile layout planning
- Available in multiple sizes to fit a variety of shower footprints
Schluter Kerdi Prefabricated Sloped Tray, 60″ x 60″ Center

This center-drain model (KST1525) offers a large, uniform base for contemporary showers. It shares the Kerdi waterproofing system, a ready-to-tile surface, and broad size availability appropriate for both new builds and remodels. The center drain alignment simplifies tile patterns and ensures consistent water removal across standard installations. The 60″ x 60″ footprint suits mid-to-large shower enclosures with straightforward drain planning.
Key advantages include:
- KERDI integrated waterproofing
- Tile-ready surface reduces install time
- Center drain configuration supports even tile layouts
Buying Guide: Key Considerations for Pre Sloped Shower Trays
When selecting a pre-sloped shower pan, consider several factors to ensure compatibility with your bathroom, tile system, and installation timeline.
- Drain placement: Center vs. side or off-center drains affect tile layouts and curb design. Choose based on your shower size and preferred tile pattern.
- Waterproofing system: Kerdi-based waterproofing is a common standard for seamless integration with Schluter tiles and membranes. Verify compatibility with your chosen tile and substrate.
- Size and footprint: Common sizes include 36″ x 36″, 36″ x 48″, 36″ x 60″, and 60″ x 60″. Ensure the pan fits your alcove or custom shower enclosure with adequate clearance for doors and tile margins.
- Installation readiness: Look for “Ready to Tile” surfaces that minimize prep work. Lightweight pans reduce handling during installation and reduce labor time.
- Material and durability: Polystyrene cores provide strength with reduced weight; ensure the tray thickness and reinforcement meet your load and usage expectations.
- Replacement and remodeling: If replacing an existing tray, verify the footprint matches the current recess and that the drain alignment aligns with your plumbing.
- Additional configurations: Some trays come in neo-angle, off-center, or perimeter drain variants—assess which option best suits your bathroom geometry and tile layout.
- Code and warranty: Confirm compliance with local building codes and ensure the product warranty covers installation and use in your region.
In summary, Schluter Kerdi prefabricated sloped trays offer reliable waterproofing, ready-to-tile surfaces, and versatile drain configurations to suit a range of shower designs. For remodeling projects, ensure the tray footprint aligns with existing recesses, and for new builds, plan for a straightforward installation sequence with compatible membranes and tile products.