I think the idea of non-skid treads is interesting. You run into a lot of problems whether they won't stick to the surface you're working with or they're just too slippery. As for myself, I work with a company called Handi-Ramp. We produce non-skid stair treads called Handi-Treads which work on almost any surface and are great for both residential projects as well as contractor's needs. You can find them at Link deleted, otherwise just remember to be safe and wise when choosing whatever tread or non-slick surface you're going to work with!
