Some dogs do have issues related to stairs which don’t have solid risers between the treads, this is sometimes referred to as “cellar stair” syndrome. If your dog has a fear of stairs which have no risers, Pet Loader has a solution. By ordering Pet Loader dog steps with velcro carpet attachments, you can close the gaps between the stairs with the carpeting, giving the dog the look of a solid stair. Call and talk to us about this special needs feature. Customer Service Toll Free: 877-275-4870.