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species
section
no. of rows (Rn)
bolts per row (n1)
Douglas Fir-Larch
Douglas Fir-Larch (North)
Douglas Fir-South
Hem-Fir
Hem-Fir (North)
Spruce-Pine-Fir
Spruce-Pine-Fir (South)
Southern Pine
2x4
2x6
2x8
2x10
2x12
4x4
4x6
4x8
4x10
4x12
6x10
6x12
6x14
6x16
6x18
6x20
8x12
8x14
8x16
8x18
8x20
10x14
10x16
10x18
12x16
12x18
12x20
14x18
14x20
16x20
6x6
6x8
8x8
8x10
10x10
10x12
12x12
12x14
14x14
14x16
16x16
16x18
18x18
18x20
0
1
2
3
4
5
6
0
1
2
3
4
5
6
7
8
9
10
11
12
grade
tension force
bolt diameter
wet service?
Select Structural
No. 1
No. 2
No. 3
Misc.
1/4 in.
3/8 in.
1/2 in.
5/8 in.
3/4 in.
7/8 in.
1 in.
yes
no
lb
kips
load of shortest duration
bolt length = t?
space betw rows (in.)
Scrit (in.)
Dead load, D
Live load, L
Snow load, S
Construction load, Lr
Wind or seismic load, W or E
Impact load, I
yes
no
1
1.25
1.5
1.75
2
2.25
2.5
2.75
3
3.25
3.5
3.75
4
4.25
4.5
4.75
5
1
1.25
1.5
1.75
2
2.25
2.5
2.75
3
3.25
3.5
3.75
4
4.25
4.5
4.75
5
check for row and group tear-out?
governing capacity
based on 2005 NDS
based on 2012 NDS
yes
no
""
""
Checks:
errors:
grade doesn't exist
force must be > 0
net area must be > 0
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