Vinyl sheet flooring on a 12' wide roll. Armstrong brand loose-lay style, which means it is flexible and heavier (has limestone in the middle). Also loose-lay style technically does not need glue for installation (though you can use glue). All it needs to be secured is double-sided carpet tape in places around the edges and under seams.
Price is 65 cents Sft delivered to your job site, cash on delivery. Minimum order 1000sft.