Shed in Healdsburg will shut its doors at the end of 2018, closing the book on a charmed five-year run for Sonoma County’s most ambitious combination restaurant, marketplace, event space and fermentation bar. Co-owners and founders Doug Lipton and Cindy Daniel plan to close the brick-and-mortar location on Dec. 31 and turn it into an online-only entity. It was a business decision for the owners.