Shower Trench Drain Explained | Curbless Shower
A shower trench drain is a type of linear drain commonly used in curbless showers, providing efficient water drainage while maintaining a sleek and modern look. Here’s how it works and why it’s beneficial:
What is a Shower Trench Drain?
A trench drain, also called a linear drain, is a long, narrow drain that spans one side of the shower or along the entrance. Instead of a central round drain, this system collects water over a wider area and directs it efficiently to the plumbing system.
Why Use a Trench Drain in a Curbless Shower?
- Seamless Entry – Eliminates the need for a shower curb, making the bathroom more accessible (ideal for universal design and wheelchair users).
- Efficient Water Drainage – The entire shower floor slopes gently towards the linear drain, ensuring fast water removal without pooling.
- Modern Aesthetic – Creates a clean and minimalist look, popular in contemporary bathroom designs.
- Flexible Placement – Can be installed along the shower wall, entrance, or under a floating bench, giving design flexibility.
- Easy Cleaning – Many trench drains have removable covers for simple maintenance.
Installation Considerations
- Proper Sloping – The shower floor must slope towards the drain (usually 1/8" to 1/4" per foot).
- Waterproofing – A high-quality waterproofing membrane (e.g., Quickdrain Waterproof Membrane, Schluter-KERDI or liquid membrane) is essential to prevent leaks.
- Drain Size – Available in various lengths to suit different shower sizes; a longer drain improves drainage efficiency.
- Grate Style – Choose from stainless steel, tile-in grates (hidden look), or decorative patterns to match the bathroom style.
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