A prefabricated structural framework of triangulated members that efficiently spans large distances while supporting roof and floor loads.

A truss is a prefabricated structural framework of triangulated members that efficiently spans large distances while supporting roof and floor loads, serving as an engineered system that provides superior strength-to-weight ratios and cost-effective solutions for residential and commercial construction. This fundamental structural component consists of interconnected members arranged in triangular patterns, typically including top chords, bottom chords, and web members connected with metal plates or other fastening systems to create rigid geometric shapes that distribute loads efficiently. Trusses are essential elements in modern construction where they enable long spans without intermediate supports, reduce material usage, provide design flexibility, and offer consistent quality through factory fabrication, making them indispensable components for roof systems, floor systems, and other structural applications where efficient load transfer and economical construction are primary considerations.

Trusses are utilized in various structural applications including residential roof systems where they span from exterior wall to exterior wall to support roofing materials and loads, commercial and industrial buildings where they enable large open spaces without interior columns, floor systems where they provide long-span capabilities for multi-story construction, agricultural buildings where they accommodate large clear spans for equipment and storage, recreational facilities including gymnasiums and arenas where unobstructed spaces are required, and specialty structures including bridges, towers, and temporary structures where efficient load transfer is essential. Each application requires appropriate truss design, materials, and connection methods based on span requirements, load conditions, and architectural constraints.

The types and configurations of trusses include common roof trusses such as king post, queen post, and Fink trusses for residential applications, engineered trusses including parallel chord, pitched, and scissor trusses for various architectural requirements, floor trusses that provide long spans and accommodate utilities within the structural depth, heavy timber trusses for large commercial and industrial applications, steel trusses for maximum strength and span capabilities, and specialty trusses including curved, arched, and custom configurations for unique architectural and structural requirements. Truss selection depends on span requirements, load conditions, architectural constraints, and economic considerations.

Fun Fact: The triangular truss principle was used by ancient civilizations including the Romans and Greeks, and modern engineered trusses can span distances that would require massive solid beams while using a fraction of the material.

• Engineered Truss
• Floor Truss
• Heel Truss