Steel framing
Handing Off CFS Truss Bearing Reactions
Coordinate CFS truss reactions with wall, beam, and anchorage designers using clear locations, load descriptions, and support revisions.
The condition to resolve
A truss reaction schedule without clear bearing marks can be difficult to reconcile with the wall or beam package. Changes in roof geometry can move supports or revise reaction information after those packages were reviewed. The handoff needs enough identity and revision information for the receiving designer to use the correct loads at the correct locations.
Coordinate before releasing the work
Identify bearing marks, grids, elevations, and the supplier's stated load conventions. Send the schedule to designers of the receiving wall, beam, and anchorage as applicable. Ask how uplift and other relevant actions are represented rather than interpreting an unlabeled number. Reconcile the accepted bearing connection with the reviewed support condition.
How it fits the building system
Cold-formed steel trusses are engineered assemblies, not a collection of interchangeable studs. Their geometry, connections, bearing locations, and restraint requirements belong to a coordinated design package. The truss supplier's documents and the building structural documents must address the same supports and loads. Establish who checks those interfaces and who resolves a conflict before fabrication or installation begins.
Keep erection conditions separate from the completed roof condition. Review handling, temporary stability, permanent bracing, and access with the parties assigned to each task. Installing roof panels does not by itself document that every required restraint or connection is complete. Preserve the approved layout and connection information in the field, and route unexpected conditions through a recorded review instead of cutting, splicing, or straightening a truss.
References: Current technical notes for CFS walls, floors, connections, and inspection · Structural studs: product data and design resources · Resources for framing contractors
Practical location-based review
Assign an owner, location, and response document to each check. Include affected trades before fabrication or concealment; final dimensions and connections belong in the approved project documents.
- Link each reaction to a truss mark and receiving support.
- Record load conventions and revision dates with the schedule.
- Confirm affected support designers accepted the final handoff.
Documents and decisions that must agree
Keep this comparison beside the current drawing. Record discrepancies as specific questions and preserve the response in that area's records.
| Item | Evidence needed | Decision to confirm |
|---|---|---|
| Bearing identity | Layout and grid reference | Receiving support |
| Load information | Labeled reaction schedule | Designer interpretation |
| Revision | Acknowledged support review | Compatible connection and support |
Verification and handoff to the next trade
Before trusses arrive, confirm that the receiving support package acknowledges the final reaction revision. Check that changes in bearing location have reached the installed layout and connection drawings. Where the support has already been built, obtain a location-specific response to any revised demand or geometry. Retain the reaction handoff with the truss mark so later equipment or roof alterations do not rely on a superseded schedule or an assumed typical bearing condition.
Give the next trade the current detail, the restrictions it must preserve, and open observations. Verify the installed work before concealment and retain an identifiable location in the final record.
Common questions
Can an installer interpret unlabeled reaction values?
Ask the issuing designer to clarify their conventions and applicable actions. The receiving designer needs unambiguous information before evaluating the support and connection.
Does a new reaction schedule require another wall review?
Have the assigned wall reviewer determine the impact. A revised truss design can change the receiving condition even if its overall shape appears similar.
Sources & further reading
Use the current documentation for the exact product and project. Source links do not imply a partnership or endorsement.
- Current technical notes for CFS walls, floors, connections, and inspection Cold-Formed Steel Engineers Institute
- Structural studs: product data and design resources ClarkDietrich
- Resources for framing contractors ClarkDietrich
Prepared with AI assistance. Linked references require current project-specific review. How these guides are prepared.
Prepare a supply inquiry
- Record the project drawing or detail and the specified product, profile, or system.
- List the complete configuration, physical units, quantities, and cuts per piece.
- Request current manufacturer documents; confirm compatibility, price, and availability before ordering.
- Obtain the responsible professional's review for loads, code requirements, or installation.