Cable Railing on Ash Floating Stairs These Vermont homeowners were looking for a custom stair and railing system that saved space and kept their space open. For the materials, they chose to order two FLIGHT Systems. Their design decisions included a black stringer, colonial gray posts, and Ash treads with a Storm Gray finish. This finished project looks amazing when paired with the white interior and gray stone flooring, and pulls together the open views of the surrounding bay.