Increase the roof strength of your shed by 50% to help withstand heavy snow accumulation. Our roof strengthening kits are made of 100% electro-galvanized steel and include all necessary hardware. The RBK10610 will fit any Arrow, Space maker, or Storboss shed that is 10" x 6", 10" x 8", 10" x 9" or 10" x 10", excluding the Commander and Mountaineer series.