The King post truss & Queen Post truss are type of the sloping roof. Both roofs are used in residential, commercial or industrial buildings.
Following are the Points which Differentiate both the Trusses:
King Post Roof Truss
Queen Post Roof Truss
01.
- 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.
- Queen Post truss is define as a pitched roof support using two vertical tie posts connected between the tie beam and the rafters.
02.
The king post truss consists following components:
- Tie Beam
- Two Inclined principal rafter
- Two struts
- King post
- Ridge Beam
The Queen post Truss consists of following components:
- Two Queen posts
- Two Principal Rafters
- Struts
- Tie Beam
- Straining beams
- Straining sills
- Purlins
03.
- King post truss is used when the length of span is in the range of 5 to 8 m.
- Queen post truss is used when the length of span is in the range of 8 to 12 m.
04.
- One vertical post is provided at the centre of the roof which is called king post.
- Two vertical posts are provided in 2 sides at distance which is called queen post.
05.
- Straining beam and straining sill are not necessary.
- Straining beam and straining sill are used to keep the queen post in stable position.
06.
- King-post is connected with principal rafter, strut and tie beam.
- Queen-post is connected with principal rafter, strut, Straining beam, straining sill and tie beam
07.
- The top ends of two main rafters are connected to ridge pitch.
- Top ends of two main rafters are joined with the queen posts heads.
08.
