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Comparing the King Post and Queen Post Roof Truss Designs

November 13, 2019

If you have been looking up roof truss designs for your home, you will have noticed that two designs in particular keep getting mentioned: the king post roof truss and the queen post roof truss. Indeed, these two designs are some of the most popular roof truss designs.


Choosing between these two designs depends on the particular design of your house and your own personal preferences.


Both designs have been in use for decades in millions of houses around the world. In today’s blog, let’s go over some of the details that differentiate these designs from one another.


The King Post Roof Truss Design

With this design, the weight of the roof is distributed horizontally, which allows for a more stable and solid structure. The strength of the king post roof truss relies on a series of four triangular structures which are built around the main king post, and are supported by two side supports known as rafters. The principal rafters are securely attached to the vertical king post with the help of struts, which helps distribute the weight into the primary tie beam. This particular design provides a very sturdy framework with strong integrity, making it one of the most popular roof truss designs used in modern homes. 


The Queen Post Roof Truss Design

Similar to the king post roof truss design, this design allows a large roof space to be integrated into the home’s design. The extra space can be converted into an additional room. The queen post roof truss also utilizes two main rafters, though it has two queen posts used on each side that are supported by those rafters. It is then completed with a horizontal straining beam that sits on top. The provision of a larger space inside the roof makes this design perfect for those who want to create some kind of attic or loft space.


Ultimately, the best thing to do when researching roof truss designs is to consult with an expert. Tamarack Lumber works with a wide variety of wood materials and creates crucial components for construction and architecture. Get in touch to learn more about what we do!