Our kitchen has an elevated pedestal table where my wife and I eat just about all our meals, perched atop tall barstools. The red-oak floor below is finished with three coats of clear, oil-based polyurethane. When I built the kitchen, I was pretty sure this table would get a lot of use, so I installed nail-on PVC chair glides on the legs of each stool to minimize floor scratches. In no time at all, though, there were plenty of scratches.
My wife, trying to make me feel better, suggested that the floor wasn’t actually scratched. Instead, the plastic glides were leaving plastic deposits on the floor as the stools were moved around. Whatever those marks were, they were ugly, so at the suggestion of a seasoned kitchen designer and barstool sitter, I replaced the PVC glides with stick-on felt pads. The floor marking stopped, but the stick-on pads, which are fine for stationary furniture such as tables, have shown a tendency not to stick very long on the barstool legs.
PVC glides: No
Stick-on felt: No