Remodeling a shower is one of the most effective ways to update a bathroom, boost property value, and transform a daily routine. However, the success of the project hinges entirely on having the correct materials needed to remodel shower. From the foundational waterproofing layers to the final polished fixture, every component plays a critical role in ensuring both aesthetics and long-term durability.
Before any demo begins, it is essential to distinguish between the surface layer and the structural support system. The visible tiles and glass are what homeowners see, but the true integrity of the shower lies in the substrate and waterproofing materials. Selecting the wrong combination here can lead to leaks, mold growth, and expensive structural repairs down the line, making this the most crucial phase of planning.
Substrate and Waterproofing: The Hidden Framework
The substrate is the foundational base upon which everything else is built. It must be solid, level, and, most importantly, water-resistant. Traditional plywood is unsuitable for wet areas, making specific materials the standard for modern showers.

Waterproofing Membranes and Cement Boards
To protect the walls from moisture, contractors typically install a cement board or green board. Cement board, such as HardieBacker, provides exceptional strength and resistance to mold, while green board is moisture-resistant gypsum suitable for less intense steam environments. Over this substrate, a waterproofing membrane is essential. This can be applied as a liquid membrane with a roller, creating a seamless barrier, or as sheet membranes that are taped and sealed at the seams. The combination of these materials creates a failsafe system that directs water back to the drain rather than into the wall framing.
| Material | Best Use Case | Key Advantage |
|---|---|---|
| Cement Board | Standard tiled showers | Fire-resistant and rigid |
| Green Board | Enclosed niches, less water exposure | Cost-effective moisture resistance |
| Liquid Membrane | Complex angles and corners | Seamless application |
Tile Selection and Installation Materials
Once the waterproofing is complete, the focus shifts to the aesthetic and functional surface: the tile. The choice of tile impacts slipping resistance, maintenance, and visual style. Porcelain is often the go-to recommendation for shower floors due to its density and low water absorption rate, making it more durable than ceramic in high-traffic wet areas.
To bond these tiles to the substrate, thin-set mortar is required. Not all thin-sets are equal; manufacturers often specify "modified" thin-set with polymer additives for better flexibility and bonding strength in wet environments. Grout is the next critical material, and for showers, sanded grout is generally necessary to fill the wider joints between tiles. Without proper grout sealing, the surface will be vulnerable to staining and water penetration.

Fixtures and Hardware: The Functional Elements
No materials list would be complete without detailing the fixtures that define the shower experience. The configuration—be it a stall, neo-angle, or walk-in—will dictate the specific components required.
- Valves and Trim: Pressure-balance or thermostatic valves are crucial for safety, preventing scalding by maintaining consistent water temperature. These valves are usually purchased as a trim kit that includes the handles and escutcheons.
- Diverter and Mixing Valve: If the shower shares a handle with a tub, a reliable diverter valve is necessary to switch water flow. A mixing valve allows for the blending of hot and cold water at the source, offering precise temperature control.
- Drain Assembly: Modern linear drains or traditional point drains require specific flanges and P-traps to connect to the main plumbing waste line.
Finishing Touches and Safety
The final category of materials involves the elements that complete the look and ensure safety. A high-quality shower door or curtain rod system is essential to contain water spray. While glass doors offer a modern, open feel, they require precise templing and installation to prevent leaks. Alternatively, framed doors provide a more budget-friendly option.