Joist were typically planed smooth (wrought) and sometimes chamfered or beaded. Joists may join to their supporting beams in many ways: joists resting on top of the supporting beams are said to be "lodged"; dropped in using a butt cog joint (a type of lap joint), half-dovetail butt cog, or a half-dovetail lap joint. Joists may also be tenoned in during the raising with a soffit tenon or a tusk tenon (possibly with a housing). Joists can also be joined by being slipped into mortises after the beams are in place such as a chase mortise (pulley mortise), L-mortise, or "short
Architectural Woodwork Institute Architectural Woodwork Institute The Architectural Woodwork Institute (AWI), founded in 1953, is a professional trade association. Member companies are the fabricators of fine finished woodwork, millwork, and furniture. AWI has published a Standard of Care for woodworking since 1961, called the Quality Standards Illustrated. The association is built on the idea of sharing knowledge in many forms – formal programs, seminars and workshops, networking, committee involvement and publications. AWI and its members is devoted to fostering professionalism throughout the industry. Each member firm today garners prestige through the AWI logo, Quality Standards, Quality Certification Program, Design Solutions and other important