I took a spare bedroom upstairs and turned it into a sewing room. We eventually are going to replace carpeting upstairs with new carpeting, hardwood, or whatever and wanted it all to match. So rather than put something down temporarily, we painted the plywood subfloor with an outdoor paint for porches so it would be more durable. It's a dark teal blue to go with the light teal blue walls. Vacuums up easily, chair rolls nicely, and I love it!