Simpson Strong-Tie®
Simpson Strong-Tie®
Simpson Strong-Tie® works closely with industry professionals to provide code-listed, field-tested products and value-engineered solutions. Its structural products are recognized for helping structures resist high winds, hurricanes and seismic forces. The extensive product line includes engineered structural connectors, fasteners, fastening systems, lateral-force resisting systems, anchors and products that repair, protect and strengthen concrete.


The ICFVL ledger connector system is engineered to solve the challenges of mounting wood or steel ledgers to insulated concrete form 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 and faster installation with no protrusions.
The embedded legs of the ICFVL are embossed for additional stiffness. 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 a wood ledger.

ICFVL in ICF
- 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 kerf 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
Simpson Strong-Tie® ICF Connectors Product Sheet
Simpson Strong-Tie® ICF Load Tables
Simpson Strong-Tie® ICF Drawings
The LTA2 is an embedded truss anchor that supports high loads with shallow embedment for grout-filled CMU and concrete walls. Designed for 2” x 4” minimum truss chords, the LTA2 resists uplift and lateral loads parallel and perpendicular to the wall, with a minimum heel height requirement.

Key Features (Product Highlights)
- Simplified design of the embedded portion allows for easy positioning close to rebar
- Ideal for anchoring trusses running perpendicular or parallel to the wall
- Embedment line stamped on part simplifies installation and helps avoid installation errors
- 18 ga. (43 mil)
- Galvanized (G90)
- LTA2 must be embedded to the depth of the embedment line stamped on the part
- Attach to grouted concrete block with a minimum one #5 rebar horizontal in the top lintel block
- For parallel-to-wall applications, install the LTA2 with flanges facing the center of the wall
- Minimum edge distance of 1-1/2″ required