I have the Buck Steps, made by Summit Tree Stands, and they sound like a bell when they hit something. I filled the vertical part between the steps with expandable foam, which didn’t do that much to quiet them down because all the noise emits from the step part on the ends. So the next thing I tried was spraying the whole step with a 3M Professional Grade Rubberized Undercoating. While not perfectly quiet, the rubberized coating did help deaden the ringing noise when the steps hit against something. The biggest drawback to covering the steps with this product at this time of year is the smell. This type of alteration needs to be done in the off-season so the rubber has time to cure.