I haven't anything on wheels. I know some treadle irons have built in casters. I have put sturdy furniture felt pads on mine, and made sure they glide over my wooden floor safely. The cabinets usually stay in their place, but get's shoved around a bit. I think someone managed to fit sugru-rubber to a set of casters on trealde irons for padding, and i have tought about trying the same on my old sewing table. It has casters on two lets, and pads on the two others.