The beautiful 'Calgary' spiral stair kits from Scandinavian manufacturer Dolle, offers iconic minimalist Danish design at an unbelievable price point. These superb contemporary stairs will add the wow factor to any home, and at a price you can truly afford. Featuring multiplex beech treads and epoxy powder coated steel work, the Calgary is simply stunning. The basic kit contains all you need to build the staircase as pictured, while the optional baluster kit (12 vertical rods to reduce the gap between balusters) and the riser bar kit ( reduces the gap between treads) help with building regulation compliance.