This drawing illustrates a symmetrical roof truss system designed for residential construction, featuring a standard triangular configuration with a central vertical member. This truss spans approximately 500mm in width with a height of 200mm, creating a moderate pitch suitable for standard roofing applications. The design incorporates multiple web members arranged in a geometric pattern to distribute loads effectively while minimizing material requirements. The central vertical member serves as a key structural element, dividing the truss into two equal sections and providing essential support for the ridge beam. This type of truss configuration is particularly efficient for smaller residential spans, offering good load distribution characteristics while maintaining a relatively simple fabrication process. The parallel chord arrangement along the bottom suggests it’s designed for an attic or ceiling attachment, with the diagonal web members creating the necessary triangulation for structural stability.