WINSTON — A Canadian company will close its wood products distribution center in Winston at the end of the month, throwing eight employees out of work. McKillican International told employees last week it will move its Winston operations to its Portland distribution center. Based in Edmonton, Alberta, the company distributes wood products to contractors and retailers from 22 centers in Canada and the western United States. The Winston distribution center, 375 Dillard Gardens Road, was opened eight years ago to be a central hub for most of the company’s distribution area. The center’s operations manager, Heather Mitchell, said the Winston …