- Span – The length of the bottom chord.
- Overhang Length – The horizontal distance from the end of the bottom chord to the bottom outside edge of the top chord.
- Cantilever – Horizontal distance Bottom Chord extends past outside edge of bearing.
- The End Cut of Truss – Specify plumb cut, square cut or custom specifications. (See drawings above for reference).
- Square Cut – Cut is square to the Top Chord Slope.
- Plumb Cut – The vertical dimension at the end of the Overhang. (Cut is perpendicular to horizontal.)
- Heel Height – Vertical distance from bottom of bottom chord to top of top chord located at end of bottom chord.
- Roof Slope – The vertical rise in inches per 12 inch horizontal run.
- Bearing Width – The bearing width is the width of the supporting surface. (Specify the requirements for the truss bearing.)
- Overall Height – Total vertical distance from highest point of top chord (usually the peak) to the bottom edge of the lowest bottom chord (does not include overhang).
- Quantity – The number of trusses can be easily determined as they are usually evenly spaced 24” or 48” on center (O.C.).
- Design Load – Top Chord Live and Dead Loads, Bottom Chord Live and Dead Loads, Wind Loads, and any other loads the truss may experience.
- Gable Ends – Options include structural or non-structural, girts or nailers, plywood or OSB sheathing, window openings, dropped top chord.
- Type of Truss – Specify the type of truss required: scissor, attic, parallel chords, floor, etc.
- Special Trusses – Specify all dimensions, Cantilever conditions, heel height requirement, etc.