How it connects
The 2x6 steel joist end inserts into the rim joist channel pocket between the pre-cut vertical tabs, and is secured through the punched alignment holes using Fortress Evolution self-drilling metal framing screws.
Male and female halves
Female receiver pocket located along the inner face of the U-rim joist; receives the male cut end of a nominal 2x6 steel joist.
Usually connects to
- FORTRESS Evolution 2x6 Steel Deck Joist (male end)
Common sizes
- Nominal 2 in. x 6 in. joist profile (clear pocket opening approx. 50.8 mm x 149.4 mm x 49.3 mm depth), spaced at 12 in. or 16 in. on-center along 8 ft lengths.
Where it is used
Exterior residential and commercial deck framingLight-gauge cold-formed steel deck sub-framing
Variations
- 12 in. O.C. pre-punched U-rim joist receiver; 16 in. O.C. pre-punched U-rim joist receiver
- Blank U-rim joist (without factory punched receiver tabs)
How to recognise it
Recognized by a C/U-channel steel rim profile with integrated punched rectangular cutouts and folded internal metal screw tabs spaced at 12 in. or 16 in. on-center, coated in black powder coat / galvanneal finish.
Often confused with
| Confused with | How to tell them apart |
|---|---|
| Fortress Evolution S-Ledger Joist Receiver | The S-ledger receiver mounts against the building foundation/wall with an S-shaped flashing profile, whereas the U-Rim Joist has a U-channel outer perimeter profile with tabs folded perpendicular to the rim web. |
| Blank U-Rim Joist Connection | Blank rim joists lack factory-punched joist receiver tabs and require separate F-50 or angle brackets to connect joists. |
Also called
Fortress Evolution Pre-Punched Rim Joist PocketEvolution U-Rim Joist ReceiverEvolution 2x6 Joist Receiver Pocket
Good to know
Part of the Fortress Evolution light-gauge steel deck framing system manufactured by Fortress Building Products. The pre-punched receiver ensures uniform joist spacing and alignment along the perimeter rim of the deck.
Related connections
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