When it comes to choosing a board for shower walls, you have several options that offer a combination of durability, functionality, and aesthetics. The ideal board for your shower walls depends on factors such as your budget, the desired look, and the specific needs of your bathroom. This article will guide you through the most common types of boards used for shower walls and help you make an informed decision.
Understanding Shower Wall Boards
Shower wall boards serve two primary purposes: they provide a surface for tiling and protect the studs and drywall behind them from moisture. The right board can significantly extend the life of your shower and make installation easier. Here are the most common types of boards used for shower walls:
- Green Board - A moisture-resistant drywall with a green face.
- Cement Board - A durable, waterproof board made from cement and fiberglass mesh.
- Plywood - A versatile, moisture-resistant board made from layers of wood veneer.
- OSB (Oriented Strand Board) - A engineered wood board made from compressed wood strands.
- Fiber Cement Board - A durable, water-resistant board made from a mix of cement, sand, and wood fibers.
Green Board vs. Cement Board: The Popular Choices
Green board and cement board are the most commonly used boards for shower walls. Both have their advantages and are suitable for different situations.

Green Board
Green board is a moisture-resistant drywall with a green face, designed for use in areas with high moisture levels. It's less expensive than cement board and easier to install. However, it's not as durable or waterproof as cement board and may not be the best choice for areas with frequent or prolonged exposure to water.
Cement Board
Cement board is a durable, waterproof board made from cement and fiberglass mesh. It's more expensive than green board but offers superior durability and water resistance. Cement board is an excellent choice for areas with high moisture levels, such as showers and bathtub surrounds. It's also a good choice if you plan to use large format tiles, as it provides a stable, flat surface.
Other Board Options for Shower Walls
While green board and cement board are the most common choices, there are other board options to consider:

Plywood
Plywood is a versatile, moisture-resistant board made from layers of wood veneer. It's strong and durable, making it a good choice for shower walls, especially if you're using heavy tiles. However, it's more expensive than other options and may not be as water-resistant as cement board.
OSB (Oriented Strand Board)
OSB is an engineered wood board made from compressed wood strands. It's less expensive than plywood and offers good strength and stability. However, it's not as moisture-resistant as other options and may not be the best choice for shower walls.
Fiber Cement Board
Fiber cement board is a durable, water-resistant board made from a mix of cement, sand, and wood fibers. It's more expensive than other options but offers excellent durability and water resistance. It's a good choice if you're looking for a long-lasting, low-maintenance board for your shower walls.
Installation Tips for Shower Wall Boards
Regardless of the board you choose, proper installation is crucial for ensuring the longevity of your shower walls. Here are some tips to keep in mind:
- Always use screws, not nails, to attach the board to the studs. This provides a stronger, more secure hold.
- Leave a small gap between the board and the floor to allow for expansion and contraction.
- Use a waterproof membrane, such as a shower pan liner or waterproof underlayment, to further protect the board from moisture.
- Seal the edges and seams of the board with a waterproof sealant to prevent moisture from getting behind the board.
Which Board is Right for Your Shower Walls?
The right board for your shower walls depends on your specific needs and budget. If you're looking for a durable, waterproof board, cement board is an excellent choice. If you're looking for a more affordable option, green board may be sufficient. If you're using heavy tiles or want a strong, stable surface, plywood may be a good choice. Ultimately, the best board for your shower walls is one that meets your needs and fits within your budget.
| Board Type | Moisture Resistance | Durability | Cost |
|---|---|---|---|
| Green Board | Moderate | Moderate | Low |
| Cement Board | High | High | High |
| Plywood | Moderate | High | Moderate |
| OSB | Low | Moderate | Low |
| Fiber Cement Board | High | High | High |