Hardwood subfloors done right?


Old 01-02-09, 07:10 PM
Thread Starter
Join Date: Jan 2009
Location: San Diego
Posts: 3
Hardwood subfloors done right?

I have a 1950's home built in San Diego that needs new floors. Right now there is carpet. Under the carpet is the original 3/8" x 1.5" flooring 9can't be refinished. That is nailed directly into 3/4" x 7.5" planks which are over the floor beams. Now for my question: What should I do with the old flooring? Should I take it out? Should I leave it in and install the new floor into it? Thanks for your help.
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Old 01-24-09, 05:51 PM
Join Date: Aug 2000
Location: USA
Posts: 15,834
If the nail down product is smooth and flat with no high or low spots, you can nail down new solid 3/4" wood over that. Install wood perpendicular to the existing wood floors to better distribute the weight over joists. Keep in mind the increased height of adding another floor that 3/4" will raise floor level by that much and will impact door jambs, doors, transitions to different types and levels of floor covering, etc. If this is going to be a problem, then you may want to remove the 3/8" flooring.

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