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I am gutting the kitchen and adjacent bath of a 110 yr. old Victorian. I have removed the flooring to the joists – big, beefy old time timbers. I will be laying the subfloor myself with plywood. The kitchen is 14’x 16′, and I want to be sure to lay the subfloor perfectly level. Before I tackle this I wonder if there is a recommended way to check that the floor is level as I put the plywood down? And, if possible, should I use 3/4 ” PLY?
Thanks for any advice.
Jin
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8' straightedge and a 4' level...
as big as the timber sound.. if they are out of level.. you 'll have to rip shims.
3/4" T&G p& ts, glued and nailed..
except i like Advantech even better..
*jin, perfectly level in an old house sometimes turns out to be an oxymoron. You could find your 2" out from one side of the house to the other. Door openings can be a challenge when this occurs. Windows can look off when everything else in the kitchen is dead level square and plumb. A rotary laser will tell you for sure how far your out. If its less than an inch, do what Mike suggests using shims. The thicker the plywood the stiffer the floor. You didn't mention the joist spacing, you may want to add some if they are over 24" apart.