I ripped off the carpet, painted the risers and stained/varnished the treads, put oval braided carpet on each tread. When carpet-layers, with big feet, went upstairs to install carpet, their big shoes hit my beautiful white risers and left black marks. I admit the stairs are not the modern size. What can I put on the riser part to avoid more of this? I saw a plastic version of molded tin sheets (like you'd see on old ceilings)that you can use as back splash by gluing in place. Maybe that would work? Any other suggestions? Thanks.