These allowable load tables (Table 12,
Table 13, and Table
14) are intended as guidelines to provide the user with
an idea of the maximum loads in pounds per lineal foot (plf)
for various wood products with girder spans common in raised
floor systems. These allowable loads were determined in accordance
with appropriate standards, such as the National Design Specification®
(NDS®) for Wood Construction published by the
American Forest & Paper Association. They are based on uniform,
gravity loads only, and assume dry-service conditions. For more
complete allowable load table information, refer to Southern
Pine Hearders and Beams.
Treated Southern Pine 4x6 sill beams
are supported by concrete block piers on a continuous spread footing.
KEY For each span, there are three rows of numbers:
Row 1:
Maximum total load in pounds
per lineal foot with deflection limited to
ℓ/240
Row 2:
Maximum live load in pounds
per lineal foot with deflection limited to
ℓ/360
Row 3:
Required bearing length in
1.5" trimmer thickness increments
Table
12 Solid-Sawn No. 2 Southern Pine
Span feet
Size(nominal inches)
4x6
6x6
6x8
8
223
221
1.5
237
237
1.5
412
412
1.5
10
142
114
1.5
149
137
1.5
262
262
1.5
12
95
66
1.5
102
80
1.5
179
179
1.5
Source:
Southern Pine Council. See KEY for explanation
of table values.
Table
13 24F-1.8E, Southern Pine Glued Laminated Timber, 3-1/2"
Width
