Hello Charles, The answer to your probelm is now solved!! All you need to do is contact Bath Fitter. The Bath Fitter walls are made up from a solid sheet of acrylic and each wall is custom made to fit your opening. The color you will want to ask about is the white marble and the silver marble. If you need a local Bath Fitter franchise I'm your link! I just need your city and telephone number by e-mail for forwarding. Jim