Kingpost Roof Truss Span

Queen post roof truss queen post truss is used when the length of span is in the range of 8 to 12 m.

Kingpost roof truss span.

It can also be built of combination of wood and steel. A king post truss is a simple triangular gable truss with a center brace known as the king truss. This form of roof is practically the beginning of all trusses which are complete framings in themselves spanning from wall to wall and doing duty for the cross walls in that they support in their turn the ridge and purlins which require a bearing every 8 or 10 feet trusses should be no more than 8. The king post truss does not provide storage space because the frames are usually exposed and do allow extra room.

Roof trusses have revolutionized roof framing. King post truss is a wooden truss. The spacing of king post truss is limited to 3 m centre to centre. The truss is suitable for spans varying from 5 to 8 metre.

Total load psf duration factor live load psf roof type 55 1 15 40 snow shingle 55 1 15 30 snow tile 47 30 snow 40 20 snow 1 25 20. The king post truss is used for simple roof trusses and short span bridges. The truss has four main parts. It is the simplest form of truss in that it is constructed of the fewest truss members individual lengths of wood or metal.

The king post is the next roof which circumstances as it were bring before the carpenter and to his help into the bargain as has been explained earlier in the course of these notes. The shapes and spans shown here represent only a fraction of the millions of designs produced by alpine engineers. It is not suitable for the long span. A king post truss solves many structural problems as well.

It can be used for spans upto 8m. The top two diagonal pieces that serve as rafters are known as the upper cords. 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. Alpine truss designs are engineered to meet specific span configuration and load conditions.