Matte Black Shower Door Threshold – 36" Aluminum Water Dam for Frameless Showers

Stop Shower Water Before It Reaches Your Bathroom Floor

Water escaping from your frameless shower? Create a clean, low-profile barrier that helps keep it where it belongs.

The KC Hardware 36" Matte Black Aluminum Shower Door Threshold creates a raised water dam along the shower entrance to help redirect water back into the shower and reduce water flowing onto the bathroom floor.

At only 1/4" high × 13/16" wide, it provides an effective barrier without the bulky appearance of a tall shower curb. Its sleek matte black finish is an excellent match for modern frameless shower doors and black bathroom hardware.

Measure your shower opening, cut the 36" threshold to fit, and create a cleaner line of defense against escaping water.

Designed for Frameless Shower Doors

Frameless glass showers create a beautiful, open appearance, but the minimal design can leave areas where water travels across the shower floor and escapes through the entrance.

This aluminum shower threshold creates a small raised barrier across the floor or curb, helping interrupt that water path and redirect water toward the shower area.

It is particularly useful where you want additional water control without installing a large or visually distracting curb.

Where Can You Use It?

The threshold is designed for use with frameless glass shower doors, swinging shower doors, fixed glass panels, walk-in shower entrances, shower curbs, and other shower openings where a low-profile water barrier is needed.

It can be positioned along the shower entrance or beneath the door area depending on your shower configuration.

Low-Profile 1/4" Water Dam

The profile rises only 1/4 inch, creating a subtle water barrier while maintaining the clean appearance associated with frameless shower systems.

Its 13/16-inch wide base provides a stable installation surface and creates a neat, finished transition along the shower floor.

Premium Matte Black Aluminum

The matte black finish complements popular contemporary shower hardware, including black hinges, handles, brackets, channels and other frameless shower accessories.

The solid aluminum construction provides durability for use in wet bathroom environments while maintaining a slim architectural profile.

36" Length – Cut to Your Exact Opening

The shower threshold is supplied in a 36-inch length and can be trimmed to fit shorter shower openings.

Measure the installation area carefully before cutting. This makes one profile adaptable to a variety of frameless shower configurations.

Helps Control Escaping Water

Rather than relying only on the shower door seal, the threshold adds another physical barrier at floor level.

When correctly positioned, it can help:

• Redirect water toward the shower

• Reduce water escaping across the shower entrance

• Protect the surrounding bathroom floor from routine splashing

• Complement bottom shower-door seals and sweeps

• Create a cleaner finished transition beneath frameless glass doors

Product Specifications

Why Choose This Shower Threshold?

The combination of a low 1/4" profile, durable aluminum construction, 13/16" base and matte black finish makes this threshold especially suited to modern frameless shower installations.

Instead of adding a bulky barrier, it provides a discreet architectural solution that works with the appearance of the shower while helping manage water at one of the most common escape points.

Complete Your Frameless Shower Installation

For the best water-control setup, pair the threshold with the appropriate shower door bottom seal, sweep or drip rail for your glass thickness and door configuration.

Keep the clean frameless look — and help keep the water inside the shower.