| Ok you are hoping that someone has a trick to make several thicknesses of drywall come out exactly the thickness of you plaster wall. Sorry, not going to happen but you can get close. Take a measurement of the plaster thickness from surface to face of the slat. Drywall comes in many thicknesses but I doubt that one sheet is going to do it but a combination of two sheets should get you close. 3/8, 1/2, 5/8, 3/4" any combo of these sheets get close to your thickness?? Back to you |