- A Design Loading
- Top and bottom chord dead and live loads (including snow load) in pounds per square foot as used in the analysis.
- B Load Duration Factor
- An adjustment of allowable design values of lumber and fasteners for load durations other than normal.
- C Lumber Specifications
- Lumber size, species and grade for each member as used in the analysis.
- D Reaction
- The force in pounds on the bearings produced by the truss at design load, and the bearing width.
- E Connector Plates
- The gage, series, size and orientation.
- F Engineers Seal
- Seal of the registered professional supervising the design.
- G Slope
- The vertical rise in inches for every 12 inches of horizontal run.
- H Panel Points
- The joints of the truss where the webs intersect the chords.
- I Peak
- The intersection of two chords where the slope changes from positive to negative. Generally at the centerline of the truss.
- J1 & J2 Splices
- Where two chord pieces join together to form a single member. J1 shows the location, J2 the corresponding connector plate.
- K Heel
- The point of the truss where the top and bottom chord intersect, generally at the bearing point.
- L Span
- The nominal span based on out-to-out dimensions of the supports or the bottom chord length, whichever is greater.
- M General Notes
- Notes that apply to all Alpine design drawings.
- N Special Notes
- Notes that apply only to this specific design drawing.