Particle board was definitely used in lots of '70's houses. My parents
have
one of those, and since they are installing hardwoods in yet another room,
they are dealing with the same issue. I'd simply set my circular saw to a
reasonable depth, cut the particle board into managable sections, and use
a
pry bar to remove it.

KB



Same here for one bedroom. I tore it all up and replaced it with 5/8"
span-rated underlayment. Lots of work, but can be done in half a day or less
if you're organized.


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Mark & Mary Ann Weiss

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