The triangle is the best shape for roof trusses and is beneficial for many reasons. Perhaps the most obvious reason for using triangles in roof trusses is that the shape itself allows snow and rain to shed from the structure, preventing erosion. Perhaps less obvious is that the triangle’s shape keeps the vertical walls upright while the walls support the entire load of the roof. Triangles, unlike squares, do not shift when lateral forces such as wind are applied to them. Therefore, the best possible design for triangle trusses have triangles designed within them.

There are many amazing styles of joinery that can be applied to your timbers that help resist the forces acted on the heavy timber truss. Not only do these details offer a better structure to the truss, they offer a finished and traditional look and feel. Traditional joinery details, like the “diminished haunch”, allows for the weight of one timber to be displaced onto another timber. These haunches push timber joinery one step past typical mortise and tenon joinery.

Axe Handle Timber takes the time maximize the wood’s natural strength when choosing which joinery style to use. An example if this occurs when a rafter intersects it’s tie beam at the angle of the roof pitch. Notches cut into both timbers allow the timbers to intersect each other at a right angle even if their angles are not ninety degrees to each other. This joinery style not only increases the ability to resist the forces acted on the connection, but offers a look that even a novice truss looker will notice.

Let Axe Handle Timber build your heavy timber trusses so that structural quality as well as old world beauty emerges within your joined heavy timber truss.

Click here to see artisan timber joinery in our featured timber framing projects.



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