All truss images are for visual aid only and may not truly represent the roof truss supplied or designed by your chosen supplier.
Roof truss dimensions uk.
Roof truss span tables alpine engineered products 15 top chord 2x4 2x6 2x6 2x4 2x6 2x6 2x4 2x6 2x6 2x4 2x6 2x6 bottom chord 2x4 2x4 2x6 2x4 2x4 2x6 2x4 2x4 2x6 2x4 2x4 2x6 2 12 24 24 33 27 27 37 31 31 43 33 33 46 2 5 12 29 29 39 33 33 45 37 38 52 39 40 55 3 12 34 34 46 37 39 53 40 44 60 43 46 64 3 5 12 39 39 53 41 44 61 44 50 65 47 52 70.
Meanwhile the 46mm thickness option is used for attic trusses due to fire regulation guidelines.
Square the result obtained in step 1.
Enter two of the span height pitch fields.
Adding 4 41 ans 1 44 gives 5 85 and the square root of 5 85 is 2 42 8 06 feet.
Just as there are many types of roofs with many roof parts there are many different types of roof trusses this extensive article explains through a series of custom truss diagrams the different truss configurations you can use for various roofs.
While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses.
600 timber thickness mm.
The standard roof truss used for the majority of new build houses across the uk.
We usually opt for the 35mm thickness in timber when designing standard roof trusses.
This sizing guide for roof rafters will help determine what you need for your small project.
To find out more about our roof trusses call our team on.
35mm standard roof truss.
Pitched roof timber sizes.
This could be for fink trusses in a house construction or queenpost trusses for a garage.
Add it to the square of the result obtained in step 2.
This is the minimum length of the outer board of your roof truss.
The following tables give details of the allowable spans and spacing for some of the more common timber sizes used in traditional roofing construction.
01706 212 238 northern 01785 282 833 midlands northern office.
These trusses can also be used for garages and extensions as well as self build projects.
These trusses are designed as attic style with larger sections of timber to support additional loadings which allow people to live within the truss zone.
Enter your existing heel size or rafter size.
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.
There are several variables to consider when determining the proper rafter size.
To use the truss form existing roof dimension calculator.
These trusses are used when habitable space is required within the room zone.
The truss is a framework consisting of rafters posts and struts which supports your roof.
The tool will calculate the missing field.
