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800 square foot kitchen, probably 650 actual square feet of slate at 6.5 lbs/square foot. Looks like a minimum of 2 + tons, mostly in the center (no tile under the cabinets, right?) Trying to imagine a close to full size sedan parked in the middle of a kitchen.......
Pariticle board and water....totally different when the PB is protected and when it is used as an underlaiment for tile. Water can infiltrate the grout and swell the Particle Board. Consider a waterproof membrane such as 15 pound felt under concrete backerboard.
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Bob S. former owner of a 1984 silver 944
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