The joist is the horizontal beam of a truss; the rafters form the triangular peak. This open ceiling showcases typical truss construction.
Look up, and you'll see that the rough-hewn posts used to form this truss construction still have the original mortise holes.
Noticeably heavy beams were used in this timber-framed truss. The strength is necessary in an area that experiences heavy snow.
Raw framing exposes the trusses before the wallboard that would normally cover them has been put into place.
Gluing multiple boards together rather than using a single solid beam increases the overall strength of a truss.
An arch is one of the strongest and most attractive structures you can build using truss construction techniques.
These trusses may look decorative, but they still hold serve their structural purpose. The design and weight load was determined by a complicated mathematical equation using span, slope, rise, length and materials.