King Post Roof Truss Plan

King posts were used in timber framed roof construction in roman buildings and in medieval architecture in buildings such as parish churches and tithe barns the oldest surviving roof truss in the world is a king post truss in saint catherine s monastery egypt built between 548 and 565.

King post roof truss plan.

The bottom horizontal which serves as ceiling and upper floor joist is known as the. Roof trusses have revolutionized roof framing. The top two diagonal pieces that serve as rafters are known as the upper cords. Its bottom chord acts as a tie for the room holding the walls from spreading.

The 12 12 roof pitch allows for ample height and the 2 foot overhang offers additional protection from the sun and rain. King post truss is used when there is a need to support the weight of an expansive roof. In the south a king post roof truss may be able to span 36 feet with 16 foot spacing where the same truss in a snow belt up north may only be able to span 24 feet with the same spacing. It is used in aircraft construction.

The king post truss is also used for simple roof lines and short span bridges. It is one of the simplest forms of truss in that it is constructed of the fewest number of timbered members other than the common truss. The versatile frame can be anything you want it to be and its small size means you can tuck nicely in your garden. A king post truss solves many structural problems as well.

The truss has four main parts. This roof provides not only functionally but also adds beauty as well. These timber frame king post truss plans can be used for the roof trusses in your great room or master bedroom.