I just finished putting in Wainscoting in my powder room. Before I can give any advice I would Like to ask a few questions. What kind of Wainscoting? Bead board, panel. What thickness? I used 1/4" thick tongue and groove 4" inches wide. I was able to purchase floor molding and chair rail that had a rabbet to accept the wainscoting. I then used my brad gun to nail to the studs. Hope this helps. BTW I bought my material at Home Depot. The wains- coting came in pine, oak, cheery and poplar. I used Pine wainscoting (stained) and Oak moldings.