Have wider steps that require a longer riser? We have you covered with our 6 ft Carbonized strand bamboo stair risers. Also known as upboards, stair risers are the vertical molding installed in staircases. Since they get kicked and bumped regularly, we made sure to make our stair risers as durable as possible. These are designed to match our Carbonized strand bamboo stair treads and noses, but also looks good as a contrast to Natural strand bamboo stair treads and noses. This product also comes in a 4 ft length.