First In The Industry
Safe Complete System
Long Lasting For Fewer Callbacks
Evolution Stair Key Features

Key Features

  • The 1st complete steel stair system in deck framing
  • Carries a 25-year limited manufacturer warranty
  • Compatible with any type of deck framing, even wood!
  • Works with any type or brand of decking, including composite, PVC, aluminum, tile, wood and tropical hardwoods
  • Designed for low-maintenance, durability, ease of installation and safety
  • A noncombustible material, resistant to fire and invulnerable to rotting, warping, splitting and pesky insect damage
  • Cuts down on the number of stair stringers required. Instead of spacing 10”, 12” or 16” on-center, Evolution’s innovative tray allows you to span 48” between stringers
  • Includes 3 different Rise/Run bracket options: 7”/11”, 7-3/4”/11” and a fully Adjustable Stair Bracket

2x11 Beam as a Stair Stringer

Lengths:
8' - 96" (2438mm)
12' - 144" (3658mm)
16' - 192" (4877mm)
20' - 240" (6096mm)

The stair components and brackets work with the Evolution Beams to provide a quick, easy assembly, dramatically decreasing installation time! The Black Sand powder coat delivers an aesthetically pleasing modern look on its own or use with fascia/trim for a more traditional look.

2x6 Joist (16Ga) as a Stair Stringer

Lengths:
12' - 144" (3658mm)
14' - 168" (4267mm)
16' - 192" (4877mm)
18' - 216" (5486mm)
20' - 240" (6096mm)

The stair components and brackets work with the Evolution Joists to provide a quick, easy assembly, dramatically decreasing installation time! The Black Sand powder coat delivers an aesthetically pleasing modern look on its own or use with fascia/trim for a more traditional look.

Visit the Sales Sheet for more details as well as custom options.

Stair Bracket 7" (178mm)/ 11" (279mm)

The Evolution Preset 7”/11” Stair Bracket is engineered to slide over the top of an Evolution Joist and provide a perfect 7” rise and 11” run for the stringer. These brackets align directly with one another resulting in a rapid, worry-free stringer installation.

Stair Bracket 7-3/4" (197mm) / 11" (279mm)

The Evolution Preset 7¾”/11” Stair Bracket is engineered to slide over the top of an Evolution Joist and provide a perfect 7¾” rise and 11” run for the stringer. These brackets align directly with one another resulting in a rapid, worry-free stringer installation.

Adjustable Stair Bracket

The Evolution Adjustable Stair Bracket allows you to quickly and easily customize the stair’s rise and run using the two provided set pins. Simply place the set pins in the desired holes and slide the stair brackets over an Evolution Joist to complete the stinger installation.

Stair Strap

The Evolution Stair Strap allows flexibility when connecting the stairs to the deck, landing or structure, while securely holding the stringers in place.

Anchor Bracket

The Evolution Stair Stringer Anchor Bracket is reversible, allowing a secure, connection from the stringer to the footing, slab or pier under the last tread. Providing an aesthetically seamless transition from the stairs.

Self-Drilling Screw 3/4" (19mm)

Black self-drilling metal screw

Black Sand Aerosol Touch Up Paint

Visit the Sales Sheet for more details as well as custom options.

Stair Tray

The Evolution Stair Tray allows quick and easy installation without all the stringers and hassle. The lateral supports are spaced to work with any kind of deck board and provides blocking for surface mounted posts.

Visit the Sales Sheet for more details as well as custom options.

Black Sand

Wood vs. Steel Framing

Resources & Downloads

  • Warranty
  • Literature
  • Installation Guides
  • Stair Calculator
  • Technical Reports

You're Covered

Historically, fortresses were built to protect. The same is true of Fortress Building Products. You can expect coverage the second you decide to embark on your journey with us. We cover our products and the people who buy them. At Fortress, we don’t just stand behind our work ... we stand by your side.

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Read All About It

Check out our beautiful, informative literature to learn all about our framing products. Be briefed by brochures, stirred by sales sheets, captivated by catalogs and motivated by other marketing elements.

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READY, SET, GO

Installing Fortress® products correctly will ensure that you or your customers start off on the right foot. Download our comprehensive, step-by-step guides as a jumping-off point.

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Fortress Stair Calculator

After entering a few parameters, the calculator will walk you through all the steps required to assemble a stair stringer using Fortress’ Evolution Steel Stair System.

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STAMP OF APPROVAL

Looking for certified engineering plans for permit? Purchase a Technical Evaluation Report for Fortress Framing stamped by a Professional Engineer.

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