King And Queen Post Roof Truss

What is a queen post truss.

King and queen post roof truss.

This arrangement is particularly good for longer truss spans in excess of 24 feet. 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. They look great and offer an open area in the middle of the truss. They make a fan type design hence then name fan truss.

Day bridge in southwestern pennsylvania. Unlike the king post the queen post has two wooden vertical posts called queen post. King post trusses are also used as a structural element in wood and metal bridges. This truss is also very strong and adaptable with regard to desired span and roof pitch.

It s also more lightweight and can be used to cover larger areas. On to the king and queen post truss designs which without much fuss are the strongest heavy timber trusses. This design is a winner for great rooms and entry ways as long as the span isn t too wide and the roof pitch isn t too shallow. Queen post also known as a fan truss this type of truss is just like a king post except that it has two diagonal braces or web runners emanating from the bottom of the king post to the top chords on either side.

Even though it is a tension member rather than a compression member they are commonly still called a post. A queen post roof truss is essentially a modification of the king post truss. Unlike a king post the queen post truss has two central vertical posts two rafters and a beam. A queen post is often confused with a queen strut one of two compression members in roof framing which do not form a truss in the engineering sense.

These trusses are capable of handling spans up to 22 long. It is more lightweight than the king post and can be used to cover larger areas. King posts also appear in gothic revival architecture queen anne style architecture and occasionally in modern construction. She will advise you.

How do you know what is too much. 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 timber trusses can easily span 30 feet or more. A king post uses one central supporting post whereas the queen post truss uses two.

The oldest surviving roof truss in the world is a king post truss in saint catherine s monastery egypt built between 548 and 565.