The Masonry Advisory Council (MAC) is a non-profit organization that provides support to the masonry construction industry. Since 1937 we’ve delivered ongoing collaboration through masonry education, technical literature, research, and training within the industry as a whole. Our goal is to make information accessible so you can make informed decisions for a variety of masonry construction applications. Association members and the masonry public alike can learn more through the accumulated knowledge and experience MAC has available in our extensive searchable technical library.