In view D, you can see that the overall design of the
truss roof transfers the entire load (roof weight, snow
load, wind load, and so forth) down through the outside
walls to the foundation.
Web members must be fastened at certain points
along the top and bottom chords in order to handle the
stress and weight placed upon the truss. A typical layout
for a W-type (fink) truss is shown in figure 2-68. The
Figure 2-68.-Layout for a W-type (fink) truss.
points at which the lower ends of the web members
fasten to the bottom chord divide the bottom chord into
Figure 2-69.Placing trusses by hand.