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02.E - Floor Panel Bears on Ledger - Balloon

Floor Panel Bears on Ledger – Balloon

Floor panel bears on wood ledger. A positive connection is made between panel and ledger, and ledger and wall with partially-threaded screws. A proprietary clip between wall stud and panel is made using dowel-type fasteners. Blocking is fastened with dowel-type fasteners.

Purpose: Transfer of vertical load from floor panel to wall. Can also transfer in-plane and out-of-plane loads between the wall and floor panel.

Design Notes

  • Capacity of primary load path is controlled by perpendicular-to-grain bearing capacity of floor panel or ledger, or shear capacity of the ledger attachment.
  • Screws provide load path for in-plane loads. Proprietary connector and dowel-type fasteners provide load path for out-of-plane loads.
  • Blocking is provided for fire blocking between floors and for transfer of shear forces out of the diaphragm and into the wall sheathing.
  • Elevation control of ledger is critical.
  • With balloon framing, multi-story walls can be erected rapidly; however, constructability can be affected by the need for temporary bracing of walls.
Class
Class 1
Load
Load Low
Cost
Cost $$
Const.
Constructability Moderate
Fire
Fire Rating II

Related Mass Timber

Floor Panel Bears on Ledger – Balloon

Floor panel bears on wood ledger. A positive connection is made between panel and ledger, and ledger and wall with partially-threaded screws. A proprietary clip between wall stud and panel is made using dowel-type fasteners. Blocking is fastened with dowel-type fasteners.
02.E - Floor Panel Bears on Ledger - Balloon