subfloor variances

[b_m_hart]

I have douglas fir subfloor that had to be torn up in spots, and intend to do 5/16" white oak strips (the 2" wide kind that are face nailed) to match the rest of the place.  My question is: the 3/4" ply that I used to patch the subfloor is not quite as thick as the original, and I didn't shim it, as I was told that i'd be better off floating a filler substance... so, any ideas what to use?  I can caulk the gaps around the replacements (I've already blocked them off below) to keep it from oozing down onto the floor below, but I'm unsure what the best product to use would be.

 

[tjbnwi]

I would use on of these 2 products;

http://www.homedepot.com/h_d1/N-5yc1v/R-100678058/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053

http://www.homedepot.com/h_d1/N-5yc1v/R-202532185/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053

I would make my decision based on the number and size of the spots. My guess is you need to fill 1/32". A piece of felt cut to fit the depression may solve the problem also.

Tom

 

[waho6o9]

Double up the felt if need be.  [big grin]