Top Plate

Framing consisting of two members On The Flat that forms the top of exterior stud bearing walls of platform frame construction.

Truss

An engineered structural component, assembled from wood members, metal connector plates and other mechanical fasteners, designed to carry its own weight and superimposed design loads. The truss members form a semi-rigid structural framework and are assembled such that the members form triangles.

Truss Clip

Metal component designed to provide structural connection of trusses to wall plates to resist wind uplift forces.

Truss Engineering Drawing

Drawing prepared by a Professional Engineer which prescribes truss geometry (span, slope, panel point locations, lumber, plate type, size and location, design loads, spacing, forces, etc.) usually required for manufacturing and building inspection.

Truss Layout

Plan view of entire project created by the truss manufacture to indicate proper truss placement and location.

Truss Spacing

The on center distance between trusses.

Valley

The angle formed by two sloping sides of the roof.

Web Member

Internal members that join the top and bottom chord, to form the triangular patterns typical of trusses. These members typically carry axial forces.

Wedge

A triangular piece of lumber that has one side equal to the standard two-inch dimension lumber widths, and is inserted between the top and bottom chords, usually to allow the truss to cantilever. Its used is determined through engineering analysis.

Wind Load

Load applied to the roof by wind.