Roof Truss Centres

360 mm general truss information.

Roof truss centres.

This online truss calculator will determine the all in cost of your truss based on key inputs related to the pitch width and overhang of your roof. Roof trusses provide more economic solutions than traditional roofing methods. Erection procedure is simple and repetitive requiring only a minimum of skilled labour. Click to add item 24 spreadweb residential roof truss 5 12 pitch 87 to the compare list.

0 524 kn m ceiling dead load. Rafters have a tendency to flatten under gravity thrusting outwards on the walls. Standard roof truss general load settings. These standards are as follows.

The benefits of roof trusses. 35 timber size information. Member size grade tc 1 4 4 7 97 tr26 bc 6 10 72 tr26 bc 10 2 72 tr26 wb 3 8 5. Pre manufactured stock trusses are constructed with spruce pine fir spf or southern yellow pine syp lumber.

600 timber thickness mm. 0 785 kn m snow load. These trusses the meet building code criteria as specified by structural building components of america sbca and the truss plate institute tpi. Add to list click to add item 24 spreadweb residential roof truss 5 12 pitch 87 to your list.

They are designed at a 4 12 pitch to be spaced 2 foot on center. Typical roof truss spacing means that they are usually about 24 inches from centre which means at the centre of one truss there will be a two foot gap or twenty four inch gap until the centre of the next truss. 0 250 kn m ceiling live load 0 250 kn m tank load 0 450 kn max tile batten centres. Compare click to add item 24 spreadweb residential roof truss 5 12 pitch 87 to the compare list.

Trusses are generally spaced at 600mm centres giving economy in the use of timber. A timber roof truss is a structural framework of timbers designed to bridge the space above a room and to provide support for a roof trusses usually occur at regular intervals linked by longitudinal timbers such as purlins the space between each truss is known as a bay.