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For SI: 1 inch
= 25.4 mm, 1 pound per foot = 14.5939 N/m.
a. For framing of other species: (1) Find specific gravity
for species of framing lumber in AF & PA NDS. (2) For
staples, find shear value from table above for Structural
I panels (regardless of actual grade) and multiply value
by 0.82 for species with specific gravity of 0.42 or greater,
or 0.65 for all other species. (3) For nails, find shear
value from table above for nail size of actual grade and
multiply value by the following adjustment factor: Specific
Gravity Adjustment Factor = [ 1- (0.5 - SG)], where SG =
Specific gravity of the framing lumber. This adjustment
factor shall not be greater than 1.
b. Fastening along intermediate framing members: Space fasteners
a maximumof 12 inches on center, except 6 inches on center
for spans greater than 32 inches.
c. Panels conforming to PS 1 or PS 2.
d. This table gives shear values for Cases 1 and 2 as shown
in Table 2306.3.1. The
values shown are applicable to Cases 3, 4, 5 and 6 as shown
in Table 2306.3.1, providing
fasteners at all continuous panel edges are spaced in accordance
with the boundary fastener spacing.
e. The minimum nominal depth of framing members shall be
3 inches nominal. The minimum nominal width of framing members
not located at boundaries or adjoining panel edges shall
be 2 inches.
f. Staples shall have a minimum crown width of 7/16
inch, and shall be installed with their crowns parallel
to the long dimension of the framing members.
g. High load diaphragms shall be subject to special inspection
in accordance with Section 1704.6.1.
h. For shear loads of normal or permanent load duration
as defined by the AF & PA NDS, the values in the table
above shall be multiplied by 0.63 or 0.56, respectively.
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