I am looking at two different possibilities for covering the cement floor in
my shop (similar size). They are a product called DeltaFL, comes in roll
form and panels, then cover with ply. Their web sites lists distributors.
http://www.cosella-doerken.com/deltafl/index.html

And also a product called DriCore, available at the Home Depot (a similar
product is now also available at Lowe's). Here is a link for this item:
http://www.dricore.com/en/eindex.htm .

Hope this is of some help.

Regards,
Fred Bearman
Port Huron, Michigan

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.