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Wood Design
NDS calculator
Calculators
Beam Design
Column Design
Diaphragm
Shear Wall
Connections
Project
Connections
Yield-limit (Z), withdrawal & Simpson hardware per NDS Ch. 12.
Code edition
NDS 2018
NDS 2024
Design diagram
— updates live with your inputs
Connection type
Bolt
Lag Screw
Wood Screw
Nail
Simpson Hardware
Loading
Lateral - single shear
Lateral - double shear
Withdrawal
Main member species
Douglas Fir-Larch
Hem-Fir
Southern Pine
Spruce-Pine-Fir
Side member species
Douglas Fir-Larch
Hem-Fir
Southern Pine
Spruce-Pine-Fir
Steel side plate
Main member thickness t_m
(in)
Side member thickness t_s
(in)
Fastener diameter D
(in)
0.131
0.148
0.162
0.25
0.375
0.5
0.625
0.75
Fastener length L
(in)
Number of fasteners
For group action Cg
Number of rows
Load duration
Permanent (0.9)
Ten years / Floor Live (1.0)
Two months / Snow (1.15)
Seven days / Construction (1.25)
Ten minutes / Wind & Seismic (1.6)
Impact (2.0)
Service condition
Dry (CM=1.0)
Wet
End grain loading
Yes
Sets Ceg
Simpson model
LUS28
LUS26
HUS28
HU28
HGUS28
LSSU210
H1
H2.5A
MSTC40
Simpson load direction
Download (gravity)
Uplift
F1 (parallel)
F2 (perp)
Run calculation
NDS 2018