Strong Rail-Post Connections for Wooden Decks - Images 1-7

Where common connection details fail to meet code loads, prefab galvanized hold-down hardware passes the test.

DCF 1.0

Although the bolted and lagged connections appeared sturdy, neither type could come close to meeting the target 500-pound test load.

The authors tested five samples of each connection, applying a horizontal force at the top of the post until the post detached from the joist structure or the band joist itself came off.

A piece of 5/4 decking nailed to the simulated joists and band joist did little to prevent failure.

After testing the bolted and lagged connections, the authors tried reinforcing the post with blocking in a variety of configurations. Each configuration they tried failed when the blocking split along the grain.

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