Standard Details (SD)

SD-20: Top Chord Bearing Joist Connection to Timber Ring Beam

A reference for top-chord bearing joists where they meet a timber ring beam.

Duration: 7 minLevel: Details
SD-20: Top Chord Bearing Joist Connection to Timber Ring Beam

SD-20: Top Chord Bearing Joist Connection to Timber Ring Beam

What this detail covers

  • A typical connection where top-chord bearing joists meet a timber ring beam.
  • Blocking and bearing zones to support the deck and control movement.

Key steps

  1. Confirm joist type and bearing requirement from the engineered floor design.
  2. Install blocking/ring beam components as shown.
  3. Fix joists and deck to the specified schedule.

Checks

  • Joists have full bearing and are fixed as specified.
  • Deck line is level and supported.

Common mistakes

  • Treating this like a generic joist connection and missing specified blocking.
  • Fixings omitted or substituted without approval.

Indicative only: always follow the engineer’s fixing schedule and the project drawings.

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