Queen Post Roof Truss Design
As the name implies this pitched truss has the combined appearance of the queen post truss and scissors truss.
Queen post roof truss design. A king post uses one central supporting post whereas the queen post truss uses two. There are many types of roof trusses as wall as many types of roofs more types than there are parts. This free online truss and roof calculator generates the axial forces and reactions of completely customisable 2d truss structures. They look great and offer an open area in the middle of the truss.
Its web configuration resembles that of the queen post truss while its appearance resembles that of the scissors truss. This article and series of illustrated diagrams shows you all the parts of a basic roof truss king truss and queen truss. This truss is made from a variety of materials such as timber or steel. Queen post roof truss queen post truss is define as a pitched roof support using two vertical tie posts connected between the tie beam and the rafters.
Even though it is a tension member rather than a compression member they are commonly still called a post a queen post is often confused with a queen strut one of two compression members in roof framing which. Design manufacture and nationwide supply of bespoke roof trusses and metal web floor joists for over 25 years. The roof truss structure and design is integral to roof structural integrity and shape. A queen post is a tension member in a truss that can span longer openings than a king post truss.
It does not put weight on the centre of the main tie beam as the king post truss. A king post has a central vertical post as used in architectural or bridge designs working in tension to support a beam below from a truss apex above. The queen post truss is simpler and lighter in weight. Likewise referred to as kicked eaves a hood roof has 4 sides with a high top incline as well as a much more mild reduced incline offering cover around the sides of your home for a veranda.
What is a queen post truss. This rafter truss calculator has a range of applications including being used as a wood truss calculator roof truss calculator roof rafter calculator scissor truss calculator or for roof framing. If you need to add literal and or visual height to a space the modified king post may be what you like but as the bottom chord is raised higher the weaker the truss becomes something to keep in mind. Queen post timber trusses can easily span 30 feet or more.
Queen post roof trusses are very similar in design to king post trusses except that the interior of the truss has two vertical queen posts instead of one central king post. Queen post roof truss design hood roof bonnet roofing systems are basically a mansard roof backwards. Queen post truss is used when there is a need to cover large areas.