Timber Roof Trusses Dimensions

360 mm general truss information.

Timber roof trusses dimensions.

All the figures are based on roofing tiles or slates laid on timber laths over sarking felt. The following tables give details of the allowable spans and spacing for some of the more common timber sizes used in traditional roofing construction. 0 785 kn m snow load. Our timber wood roof trusses are made from the strongest grade of timber tr26 grade timber.

The truss is a framework consisting of rafters posts and struts which supports your roof. Pitched roof timber sizes. If you re building rafters and aren t sure where to start when determining the length of your lumber you re in the right place our rafter stock size calculator shows you how long your rafters should be so you ll know what you need in terms of framing lumber dimensional lumber studs and more. 0 250 kn m ceiling live load 0 250 kn m tank load 0 450 kn max tile batten centres.

This table is considerably more useful that the one that was in the previous 1990 edition of the regulations as not only maximum truss spans are indicated but also the allowable and recommended pitch of the roof and the member sizes and grades of timber that are specified in sans 1783 2. Just enter the dimensions of the roof rise and run to get started. The important point to keep in mind when you use your truss calculator is that every truss calculation is completely unique and is based on the size of your roof and its specific dimensions. Sure there may be an instance where stick framing is your only option and that is understandable.

Shop our wide selection of stock and custom roof trusses to complete your building project available in a variety of styles and sizes. Gable room in attic trusses provide an economical way to add extra living space to your home or garage. 35 timber size information. Here are the pros of trusses.

The pros of using roof trusses drastically outweigh the pros of stick framing. Click to add item 24 spreadweb residential roof truss 5 12 pitch 87 to the compare list. But 99 of the time a roof truss is going to give you so much more. The room size will vary depending on the width and slope of the truss.

We usually opt for the 35mm thickness in timber when designing. 600 timber thickness mm. 0 524 kn m ceiling dead load. A gambrel room in attic truss also provides extra living space while giving your roof a barn like appearance.

The pros of using roof trusses instead of stick framing.