subfloor question

I am unable to tell exactly what kind of material we have throught the house for our subfloor. For a house built in 1979, was it ever common to use particle board? Over time, will plywood appear similar to particle board? I've chiped a few spots, and the material looks like somekind of high-density particle board.

I am asking because we want to install wood floor in our kitchen and dining rooms.

 

During the period you're speaking (1979) particle board was the primary material. The slow transition to partical board started in the 60's and really was uses in wide acceptance within a few years.
Plywood does not look like particle when it's new and doesn't look like it when it's old.
Applying a wood floor over the particle board should no problem. I do suggest a layer of thin (1/8 ") insulating styrofoam be applied before attaching the wood to the floor. This will act as a cushion adding to the quiteness of the floor, and provide a better weather seal.

I hope this helps! Please let us know how thing work out!!!

CD

 

Thanks CD. That's what I figured. What thickness do you suggest for a new layer of ply? I guess my question is - What is the minimum thickness that will do the trick? I'd like for the new wood floor to transition nicely to the rest of the carpeted house, without using a transition piece. Maybe I can't avoid it...

 

I beg to differ!!!


Particle board is pure junk. Only a floating floor should be installed over it. Don't think about nailing into it.

 

I plan on placing a layer of plywood over the floor so I do the job right.

What is the minimun thickness of ply that I can go with to keep the ajoining rooms as close as possible without using a transition strip?

Thanks!