The real problem with concrete is that it continuously makes "dust" every
time you abrade the surface (even with rubber-soled shoes). Solve this by
applying Rustoleum basement floor epoxy (NOT the garage floor material, you
don't need it and it's more expensive besides), available in light gray or
tan, even includes plastic "sprinkles" to make the floor look more finished.
A $40 kit covers about 250 square feet. Use rubber mats is places where
you'll be standing if you wish. Anything else is overkill. Just think of
all the money you'll save and the neat tools you can buy with your
savings!!!!

Bruce


wrote in message
ups.com...
I just had a workshop (14*21 w/ hi ceilings) built that is attached to
the back of my garage. Walls and ceiling are insulated with drywall
attached. The concrete floor is 8 inches thick. I have heat in the
workshop. Now I need to cover the cement slab with something that is
easy, quick and inexpensive, but will help prevent the cold from coming
thru the floor. The workshop will be used for all kinds of projects,
but specifically wood-related projects. I am thinking about putting
down a grid of 2x4's, then filling in with styrofoam insulation and
then covering with plywood or equivalent (plywood is expensive). how
thick should the plywood be and do I need anything on top of it or can
I use it as is. thanks for any ideas.