Rubber stall mats ...
Used in trailers & garages - if you spill gas or oil or ? - you just replace that section.
You can take them with you when you leave - easy to clean too ...
This is what is in my enclosed trailer :
@
http://www.adenbrook.com/other-produ...er-stall-mats/
$40 for a 4 ft. x 6 ft. mat = $1.60 square foot.
Jim