Hi,

I am installing hardwood floor over crawlspace on the wood sub-floor.

I have seen two layers of wood on the floor, the first layers is sold wood strips, and there is particle board as the second.

Should I remove the particle board to install the 3/4 inch solid hardwood floor with cleat nails.

I have also gotten #15 felt (tarpaper) and am wondering if you can provide some help here.

thanks
sm

2 inch cleat nails

Nail size..

great analysis