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jack09 05-08-2012 08:54 PM

raising joist and sub floor?
I am closing in a porch to make it an addition to the house. the porch has a suspended slab floor and to match the transition from porch to kitchen i need to rip 2x4s down, glue down as joist, add sub floor, then 3/4 oak hardwood. the total amount is 3 3/8. I am thinking:
2x4 ripped 1 15/16th
subfloor 22/32
flooring .75

should i use a 7/16th sub floor and larger 2/4? this would allow me to add more foam insulation between the subfloor and the concrete........

Give me some ideas.

joecaption 05-08-2012 09:02 PM

Pressure tread 2 X 4's laying flat Tap Coned to the slab, 3/4" Advantec T & G,
3/8 subfloor rated plywood, 3/4 hardwood.

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