Everywhere you look in Carl Turner and Mary Martin’s 5,000-square-foot 1850s threshing barn, you can see oriented strand board (OSB), a medium associated more with shuttering around large construction sites than with interior decor. The OSB is used to break up the vast space and create distinct areas: It fences in a sofa; forms seating; makes up a central freestanding bathroom and office pod; and delineates cabinets, cupboards, and bookshelves made by Turner himself. By using this rough-hewn material as a kind of muse, Turner has created a stunning rural getaway for himself, Martin, and their host of friends, wringing a winning live/work space from a pastoral ruin. The mobile daybed on wheels is a standout piece and allows the user to catch the sun or shade as the mood strikes. Photo by Christoffer Rudquist. Photo by Christoffer Rudquist.