Do you realy want a "destroy-any-edge-that-falls-on-it" floor in your
workshop? Consider a wooden or OSB floor shimmed level over the concrete.

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To convert a carport into a shop I have to agree.... I would much
prefer to be standing on a wood floor all day then a concrete floor...

Can't remember the last time I dropped a chisel however...I just know
my legs will feel better at the end of the day...

Bob Griffiths