A Chicago-area company plans to build a 13-story apartment building in the University District out of wood, making it the country’s second-tallest timber-framed building. Harbor Bay Ventures is proposing the building on the site of the Bier Stube, a longtime Ohio State watering hole at 1479 N. High St. “Our plan is to build Columbus’ first mass-timber building,” said Dan Whalen, vice president of design and development for Harbor Bay. “We are really excited about that.” This would be Harbor Bay’s second large, wood-framed structure. Two years ago, the company opened INTRO in Cleveland’s Ohio City neighborhood, made of two timber-framed buildings, nine and 11 stories high. Harbor Bay bills INTRO as the nation’s largest timber-framed building, though not the tallest. …Harbor Bay’s plan calls for a first-floor “podium” level of traditional steel and concrete topped by 12 floors built of wood.