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ICFVL Ledger Connector System

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The ICFVL ledger connector system is engineered to solve the challenges of mounting wood or steel ledgers to insulated concrete form (ICF) walls. The ICFVL is designed to provide both vertical and lateral in-plane performance. The system offers many benefits over traditional anchor bolting, including better on-center spacing in most cases, faster installation and no protrusions.

The embedded legs of the ICFVL are embossed for additional stiffness and the hole enables concrete to flow through and around the connector. The exposed flange on the face of the ICF provides a structural surface for mounting either a wood or steel ledger.


  • ICFVL — 14 ga. (68 mil); ICFVL-CW and ICFVL-W — 16 ga.


  • Galvanized (G90)



  • For use with a minimum 4″-thick core
  • Snap a chalk line for the bottom of the ledger
  • Mark required on-center spacing
  • Use ICFVL to mark kerfs locations
  • Cut kerfs as marked
  • Insert ICFVL flush to the face of the ICF
  • Pour concrete

Wood Ledger Attachment — ICFVL-W or -CW

  • Slip appropriate ledger connector underneath the ledger.
  • Install the eight ICF-D3.25 screws partially into the ledger. ICF-D3.25 installs best using a low-speed drill with 3/8″ hex-head driver.
  • For denser wood species (specific gravity ≥ .50), predrilling may be necessary. Predrill ledger only with 5/32″ drill bit.
  • Position bottom of the ledger level to the chalk line and drive the screws through the wood and into the ICFVL.

Steel Ledger Attachment

  • Position bottom of the ledger level to the chalk line and against the ICFVL
  • Attach with four #14 x 3/4″, #3 drill-point screws (not provided)
  • All screws should be located at least 1/2″ from the edge of the ICFVL
  • Space screws evenly


  • Industry studies show that hardened fasteners can experience performance problems in wet environments. Accordingly, use this product in dry environments only.
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