Questions and Answers for STERLING Advantage 30 in. x 60 in. x 56-1/4 in. 3-piece Direct-to-Stud Wall Set Backer in White

A:  Thank you for your inquiry. I do apologize, but I don’t fully understand your questions. There is a top flange of the walls that need to be nailed directly to the studs. I would recommend looking up the installation instructions for this unit on Sterling’s website (www.sterlingplumbing.com). If you have additional installation questions, please contact Kohler's Customer Care Department at 1800-456-4537.