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Old 04-21-2013, 09:26 PM   #1
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Plank Subfloor - Replace or Use as Is

Hey Y'all!

I am remodeling another portion of our 100+ year old home. For this particular project, I am removing a good amount of 3.5" wide maple and oak finish floor. The existing floor construction is as follows:

1. 2x10 floor framing (old-growth pine, no blocking/bridging)
2. 2x6 pine planks, laid perpendicular to the floor joists fastended with smooth-shank nails
3. 1x1/4" sleepers, laid parallel and above the joists
4. 3.5" hardwood maple and oak flooring above

Attached are three pictures that I took of various parts of the plank subfloor that I revealed through removal of the finish floor and sleepers (and 700LBS of nails).

The planks are very dry and full of large knots (some pieces have cracked from simply walking on them). From the pictures you will notice what seems like substantial water contact. I cannot explain this except for possibly the third photo which shows a part of the floor which was adjacent to an old ice-box. The appearance is typical of what I have seen in other parts of the home where I have removed finish flooring (this is the first floor above a basement by the way). The sleepers were 1/4" thick and at minimum, I will have to install sheets of 1/4" plywood to raise the plank floor up so that the new finish floor will meet the finish floor in the adjacent room (not being replaced) flush and level.

I was originally posting to ask for opinions and advise regarding wholesale removal/replacement of the plank subfloor and simply covering it in plywood. As I reread what I wrote, I'm inclined to think that I should simply remove all of the existing subfloor, install blocking between the floor joists and apply a new plywood subfloor.

Thoughts? Any input is appreciated!

Attached Thumbnails
Plank Subfloor - Replace or Use as Is-subfloor1.jpg   Plank Subfloor - Replace or Use as Is-subfloor2.jpg   Plank Subfloor - Replace or Use as Is-subfloor3.jpg  


Well, now, there's what's right and what's right and never the twain shall meet.
BigJimmy is offline   Reply With Quote
Old 04-22-2013, 08:21 PM   #2
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Just go over it with plywood. No need to tear it out.


hotkarl is offline   Reply With Quote

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