---
product_id: 12764163
title: "Schluter Kerdi Board Prefabricated Shower Niche with Pre-Sealed Inside Corners for Bathroom Renovation - 12\" Width, 12\" Height - KB12SN305305A"
brand: "schluter"
price: "$165.73"
currency: USD
in_stock: true
reviews_count: 10
category: "Schluter"
url: https://www.desertcart.us/products/12764163-schluter-kerdi-board-prefabricated-shower-niche-with-pre-sealed-inside
store_origin: US
region: United States of America
---

# 100% waterproof vapor-tight design Pre-sealed inside corners for easy install 10-year limited warranty for peace of mind Schluter Kerdi Board Prefabricated Shower Niche with Pre-Sealed Inside Corners for Bathroom Renovation - 12" Width, 12" Height - KB12SN305305A

**Brand:** schluter
**Price:** $165.73
**Availability:** ✅ In Stock

## Summary

> 🚿 Elevate your shower game with leak-proof luxury!

## Quick Answers

- **What is this?** Schluter Kerdi Board Prefabricated Shower Niche with Pre-Sealed Inside Corners for Bathroom Renovation - 12" Width, 12" Height - KB12SN305305A by schluter
- **How much does it cost?** $165.73 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/12764163-schluter-kerdi-board-prefabricated-shower-niche-with-pre-sealed-inside)

## Best For

- schluter enthusiasts

## Why This Product

- Trusted schluter brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Design:** Perfectly compatible with Schluter profiles and any tile style.
- • **Confidence Guaranteed:** Backed by a decade-long warranty for professional-grade reliability.
- • **Seamless Waterproofing:** Eliminate leaks and mold with vapor-tight, pre-sealed corners.
- • **Effortless Installation:** No assembly required—just screw in and upgrade your shower space.
- • **Durability Meets Elegance:** Built to last with minimal upkeep, maintaining a sleek, clean look.

## Overview

The Schluter Kerdi Board Prefabricated Shower Niche (12"x12") offers a fully waterproof, vapor-tight solution with pre-sealed inside corners for quick, hassle-free installation. Designed for compatibility with Schluter profiles and various tile styles, it combines durability and elegance while providing a spacious, built-in storage niche. Supported by a 10-year limited warranty, it ensures long-term protection against leaks and mold, making it a trusted choice for modern bathroom renovations.

## Description

Schluter Kerdi Board Prefabricated Shower Niche with Pre-Sealed Inside Corners for Bathroom Renovation - 12" Width, 12" Height - KB12SN305305A - Shower Wall Surrounds - desertcart.com

Review: Easy to Install and Perfect for a Clean, Waterproof Shower - The Schluter Kerdi Shower Niche is fantastic! It made adding a built-in shelf to my shower so simple. The waterproofing system is top-notch — I feel confident there won’t be any leaks or mold issues down the line. The niche is well-designed with a sturdy frame and plenty of space for shampoo bottles, soap, and other shower essentials. Installation was straightforward, and the waterproofing integrated seamlessly with my Kerdi membrane. 👍 Highlights: ✅ Solid, waterproof design ✅ Easy to install with clear instructions ✅ Spacious and practical storage for shower essentials ✅ Integrates perfectly with Schluter Kerdi system If you want a durable, professional-quality shower niche that helps keep your bathroom leak-free, this is the one to get!
Review: Great product - We've used these in all of our showers and they work great and give a neater look than shelves that protrude.

## Features

- Waterproof Design - Delivers full moisture protection through a tough, vapor-tight construction, ensuring a worry-free bathroom environment.
- Versatile - Easily adapts to various designs, making it suitable for a range of tile choices and bathroom styles.
- Optimal Compatibility - Ideal for use with Schluter profiles, this niche enhances both the aesthetic appeal and functionality of your shower space.
- Built for Longevity - Crafted with durability in mind, this shower niche effortlessly maintains its functional elegance and requires minimal upkeep, simplifying your bathroom routine.
- Long-Term Coverage - Backed by a 10-year limited warranty against manufacturing defects when installed per the Schluter Installation Handbook and Technical Data Sheet, following all guidelines and industry standards in effect at the time.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00GUR3C9S |
| Assembly Instructions Description | Assembly instructions provided |
| Assembly Required | No |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #106,116 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #26 in Shower Installation Kits |
| Brand | Schluter |
| Certification | certified frustration-free |
| Color | White |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,180) |
| Date First Available | October 2, 2013 |
| Finish | Glossy |
| Installation Type | Screw-In |
| Is Discontinued By Manufacturer | No |
| Is framed? | No |
| Item Package Quantity | 1 |
| Item Weight | 13.4 ounces |
| Item model number | KB12SN305305A |
| Manufacturer | Schluter Systems |
| Part Number | KB12SN305305A |
| Product Dimensions | 18 x 17.3 x 4.4 inches |
| Shape | Rectangular |
| Thickness | 4.4 Inches |
| UPC | 787721465836 |
| Unit Count | 1.0 Count |

## Product Details

- **Door Style:** Frameless
- **Finish Type:** Glossy
- **Material:** kerdi board
- **Product Dimensions:** 18"D x 17.3"W x 4.4"H
- **Style:** Modern

## Images

![Schluter Kerdi Board Prefabricated Shower Niche with Pre-Sealed Inside Corners for Bathroom Renovation - 12" Width, 12" Height - KB12SN305305A - Image 1](https://m.media-amazon.com/images/I/71cCDpq+Y9L.jpg)

## Questions & Answers

**Q: How long do I have to wait before I can install tile on Schluter-KERDI-BOARD?**
A: Tile can be installed on KERDI-BOARD immediately, except on curved walls and non-bearing partitions where curing is needed. In showers, water testing, recommended and sometimes required by code, should be done 24 hours after membrane installation.

**Q: Can I install glass tile over Schluter-KERDI-BOARD?**
A: Glass tiles are unique products and may require special consideration.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy to Install and Perfect for a Clean, Waterproof Shower
*by B***X on August 7, 2025*

The Schluter Kerdi Shower Niche is fantastic! It made adding a built-in shelf to my shower so simple. The waterproofing system is top-notch — I feel confident there won’t be any leaks or mold issues down the line. The niche is well-designed with a sturdy frame and plenty of space for shampoo bottles, soap, and other shower essentials. Installation was straightforward, and the waterproofing integrated seamlessly with my Kerdi membrane. 👍 Highlights: ✅ Solid, waterproof design ✅ Easy to install with clear instructions ✅ Spacious and practical storage for shower essentials ✅ Integrates perfectly with Schluter Kerdi system If you want a durable, professional-quality shower niche that helps keep your bathroom leak-free, this is the one to get!

### ⭐⭐⭐⭐⭐ Great product
*by J***R on December 22, 2024*

We've used these in all of our showers and they work great and give a neater look than shelves that protrude.

### ⭐⭐⭐⭐⭐ Kerdi Products are high quality, but at a price
*by D***M on November 16, 2020*

I continue to use Kerdi solutions for waterproofing even if they continue to be pricey options. For niche, I can easily and quickly install combinations of adjacent horizontally or vertically with good alignment. You DO need to carefully cut tile around the fixed size to nicely fit, but IMHO it's a breeze to bypass manually constructing the niche. The rulings n the Kerdi surface really facilitate alignment challenges as well.

## Frequently Bought Together

- Schluter Kerdi Board Prefabricated Shower Niche with Pre-Sealed Inside Corners for Bathroom Renovation - 12-Inch Width, 12-Inch Height - KB12SN305305A
- Schluter KERDI-Board-SN Prefabricated Shower Niche - Waterproof with Adjustable Shelf, Easy Installation - 12" x 20" - KB12SN305508A1
- Schluter Kerdi Board Prefabricated Shower Niche with Adjustable Kerdi-Board Shelf - Ideal for any Bathroom Renovation - Waterproof, Vapor-Tight, 12-Inch Width, 28-Inch Height - KB12SN305711A1

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-18*