Thank you for your question regarding the Delta Classic 400 36" X 36" Shower Wall Set. I will be happy to assist you.
We do not recommend placing anything in between the studs and the wall set as it is designed to be installed directly to the studs. Though, you may use sheet rock or any other material that you would prefer to cover the nailing flanges if you wish.
If you ever have any other questions, concerns, or require anything further please feel free to give us a call at 800-345-3358 and we will be happy to assist you in any way that we can.
Thank you again!
Delta Faucet Company
Date published: 2018-08-04