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Fortress Evolution Steel Deck Framing Rim Joist

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Strong, consistently-sized framing that’s built to last: with Fortress Evolution Steel Framing, you’ll build your deck on the best, longest-lasting foundation possible.

Complete your deck build quickly and easily with a variety of Fortress Evolution Rim Joists to finish strong and deliver a clean look. Unlike regular lumber, the Fortress Evolution Steel Deck Framing Rim Joists are consistently straight and strong for an easier deck build than ever before.

Deck rim joists run perpendicular to your joists, attaching to joist ends with a few fasteners to provide a perfectly flat surface to attach fascia boards. Or choose a minimalistic look for your outdoor space and skip the additional trim with the blank Evolution Steel Rim Joist creating a complete look for your deck frame design.

Choose from several Fortress Evolution Rim Joist options to install rim joists that fit your deck vision:

  • Blank: Straight and non-punched unique for unique DIY deck joist spacing or to create a clean, polished look for decks without the need for fascia boards
  • Curved: Curved and non-punched creating a finished look for a bowed deck edge design
  • 12-inch on-center: Straight and pre-punched for 12 inch on-center deck joist spacing
  • 16-inch on-center: Straight and pre-punched for 16 inch on-center deck joist spacing

Fortress Evolution Deck Framing earned a Class A Fire Safety Rating from the National Fire Protection Association. That's the most stringent fire safety rating available for building materials, an important consideration for many local building codes.

Fortress Evolution Steel Rim Joists are sold individually and are offered in 8 foot lengths.

Installation Note: Pre-punched Fortress Evolution Rim Joist options should only be installed when fascia boards will be attached along the edge of the deck. If no fascia boards are installed, we recommend using the non-punched option to avoid exposed openings.

More Information
DecksDirect # 41562

Fortress Evolution Framing Installation Guide (6.28 MB) 

Technical Evaluation Report (6.28 MB) 

Code Compliance Report (6.28 MB) 

Fire Rating Class A (6.28 MB) 


Black Sand

(width x height x length)
2 in x 6 in x 8 ft
Pack SizeEach
Material TypeGalvanized steel
Included AccessoriesNone
WarrantyView Fortress Warranty Information

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