In 1962, Meijer launched its modern format, with a store at the corner of 28th Street and Kalamazoo Avenue in Grand Rapids. At a size of 180,000 square feet (17,000 m2), it combined grocery shopping and department store shopping in a single large store. The store was built with six-inch (152-mm) thick floors, so should the concept fail, the nongrocery half could be converted into an indoor car dealership. New stores were built in the same manner until the mid-1970s, when an architect mentioned the extra cost to management. The second such store opened in Norton Shores later that year, followed by two more in 1964, one on Alpine Avenue in Walker, Michigan, and one on Westnedge Avenue in Portage, Michigan. This was followed by the first Mid-Michigan location in Delta Charter Township, Michigan, in 1966 and the first Metro Detroit store in Ypsilanti, Michigan, in 1972. Meijer expanded into Northern Michigan with their 33rd location in Traverse City opening in 1977, which is still open to this day.