Do You Put Backer Board Under Shower Pan

Do You Put Backer Board Under Shower Pan?

When installing a shower pan, one of the most important questions to consider is whether or not to use backer board. Backer board is a moisture-resistant material that is placed under the shower pan to provide support and stability. It also helps to prevent water damage to the subfloor.

Pros of using backer board under shower pan:

Provides support and stability:

Backer board helps to distribute the weight of the shower pan and prevents it from sagging or buckling. This is especially important for large or heavy shower pans. -

Prevents water damage:

Backer board is moisture-resistant, which helps to protect the subfloor from water damage. This is especially important in areas where the shower pan is likely to leak. -

Easy to install:

Backer board is relatively easy to install, and it can be cut to fit any size or shape shower pan.

Cons of using backer board under shower pan:

Can be expensive:

Backer board can be more expensive than other materials, such as plywood. -

Can be difficult to work with:

Backer board is a hard material, which can make it difficult to cut and install. -

May not be necessary:

In some cases, it may not be necessary to use backer board under a shower pan. For example, if the shower pan is made of a thick and durable material, such as cast iron, it may not need the additional support of backer board.

So, do you need to put backer board under a shower pan?

The answer to this question depends on a number of factors, including the type of shower pan, the size and weight of the shower pan, and the condition of the subfloor. In general, it is a good idea to use backer board under a shower pan, as it provides a number of benefits. However, there are some cases where it may not be necessary.