The Queen Post Truss in timber framing
A truss is effectively a large triangle that serves to support the roof and stop the building from spreading. The queen post truss is perhaps the most common roof truss and consists of a pair of principal rafters jointed at the apex with a bridal joint and tenoned into a tie beam at the bottom.
Queen posts, are added to stiffen the truss and stop the principal rafters from flexing. Queen posts are often curved, but may be straight to frame a window in a gable for example.
