Joist Hanger Fasteners

Fastener choice is one of the most common mistakes with wood framing connectors.

  • The required fastener type is usually stamped on the connector. Do not substitute: Using a nail with a different diameter, length, or steel type can reduce shear capacity.
  • When using screws, use only those specified by the manufacturer. Do not use deck or other screws: they are too brittle.
  • For connectors that require the use of bolts, drill a hole no more than 1/16 in. diameter wider than the bolt. Larger holes will compromise the strength of the wood.
The strongest joist hangers are those that offer double shear nailing that crosses the joist ends. The angle also makes it easier to nail them to the joist in a joist bay.
The strongest joist hangers are those that offer double shear nailing that crosses the joist ends. The angle also makes it easier to nail them to the joist in a joist bay.

Why the Different Shaped Nail Holes?

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