Base Cabinet Heights for a Tiled Countertop
From contributor B:I'm sitting in a kitchen I just finished and base are 34.5, sub ply 3/4, hardi ˝ - I used 1/4" tile and only thin set, and measuring full height is 36". Seems thin set added little to nothing in height. I had no trouble sinking recommend screws into backer. Bottom line 1-1/2 to 1-9/16 should be perfect unless you use heavy thinset and mortar – then you might consider 1-5/8".
From contributor C:Build them standard, and the customer can get his tile top to 36''. Thinset and backerboard on a counter top is crazy. Just 3/4'' CDX plywood and premixed type 2 mastic is warranteed to walk on, although I rarely walk on my countertops. Type 2 mastic directly on plywood works fine on a bathroom floor if the grout is sealed with cheap old Thompsons water seal for $10.00 a gallon.
From contributor A:You use mastic on plywood? In my neck of the woods, most jobs that call for tile have a 3/4" ply base which is then wired to anchor a .5" - .75" mud base for the tile. There are no seams, no leveling problems and the bullnose has something that is strong to be attached to. Most everyone these days uses granite for countertops. If your floor is not level, all this becomes moot. 34.25" sounds good.
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