Step up to a Sundance Series® SR-600. After many years, the design of The SR-600 hasn’t changed much, and it’s no wonder why. Simply put, the SR-600 is our most popular storage building, combining great features and a range of sizes that can fit in virtually any backyard. The building includes 6-foot sidewalls with end wall door placement and the TUFF SHED 5-Year Limited Warranty on workmanship and materials.