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

Components

Try out our Stair Calculator to see what you will need to get started.

Profile Name

Specs

48" 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 provide blocking for surface mounted posts.

Stair Tray

Stair Stringer 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. This provides an aesthetically seamless transition from the stairs.

Anchor Bracket

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.

Traditional

Beam

Galvanized and powder coated with Black Sand.

Lengths available:
8' | 12' | 16' | 20'

Traditional

16 Gauge Joist

Galvanized and powder coated with Black Sand.

Lengths available:
12' | 14' | 16' | 18' | 20'

Traditional

Brackets

Preset 7"/11" Stair Bracket

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.

Traditional

Preset 7-3/4"/11" Stair Bracket

The Evolution Preset 7-3/4”/11” Stair Bracket is engineered to slide over the top of an Evolution Joist and provide a perfect 7-3/4” rise and 11” run for the stringer. These brackets align directly with one another resulting in a rapid, worry-free stringer installation.

Traditional

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.

Traditional

Resources & Downloads

  • Warranty
  • Literature
  • Installation Guides
  • Stair Calculator

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.

Go To Installation Guides

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.

Go To Stair Calculator

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