Which part of a standard W truss is referred to as the top chord?

The top chord of a standard W truss is the uppermost member that provides structural support and helps to resist compression forces acting on the truss. In a W truss, the design typically features an arrangement of interconnected members forming a triangular shape, creating a lightweight yet strong framework. The top chord works in conjunction with the bottom chord, which is located at the bottom of the truss, to effectively distribute loads and maintain structural integrity.

The top chord is typically horizontal or slightly sloped at the top, which helps it bear the weight of the roof or other elements that the truss is supporting. Its role in load-bearing makes it critical in maintaining the overall strength and stability of the truss structure. Knowing the function and location of the top chord enhances the understanding of truss design and the forces that are at play in carpentry and construction.