Timber Connector Design Calculator
Bolt count, spacing, and capacity for timber connections using NDS lateral design values.
Inputs
lbs
in
in
Results
Bolts required
7
Single bolt capacity
980 lbs
Total connection capacity5,831 lbs
Demand/capacity ratio0.86
Group action factor (Cg)0.85
Bolt diameter0.75 in
Min bolt spacing (in row)3 in
Min row spacing3 in
Min end distance5.25 in
Min edge distance1.13 in
Min member width3 in
How to Use This Calculator
- Enter Design load, Bolt diameter, and Wood species.
- Set Load duration, Main member thickness, and Side member thickness.
- Review Bolts required and Single bolt capacity (lbs).
- Use Total connection capacity (lbs) and Demand/capacity ratio to inform your decision.
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