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The FORTRESS® OSHA Stair System provides temporary or permanent access and can be configured to fit many different applications, allowing the flexibility needed to accommodate virtually any layout or lot configuration. Available in two sizes, this durable, aluminum stair system can be used in all weather conditions and is built to take on the rigors of high-traffic use. Also available for the FORTRESS Stair is an optional, easy-to-install canopy for rain, sun, and snow protection.

To purchase, please contact us at 800-258-8503 .

Product Features

  • Variable Position Height Range:
    Highest adjustability in the industry with each size having three height positions. 3-step adjusts from 23” to 34” (OSHA compliant at 25.5” and 34”) and 4-step adjusts from 27.5” to 42.5” (OSHA compliant at 34” and 42.5”).
  • Stair System Components:
    Platform legs feature captured fasteners allowing for a wide range of adjustability. The one-step riser connection uses an OSHA safety pin to lock the riser to the platform. Also features hardware-free handrails that slide into the platform and lock securely in place with Valco snap buttons. Handrails are universal for left or right installation and fold flat for easy transport and storage. System ships with one riser handrail and one platform handrail. 
  • Safety and Durability:
    OSHA compliant and exceeds NIOSH lifting recommendations. Each major component weighs less than 50 lbs. allowing for safe, one-person installation. Welded construction and 6000 series alloy aluminum. Extruded tread for maximum slip-resistance. 
  • Stair System Adjustability and Use:
    The platform and riser legs adjust independently allowing for easy, on site leveling. The design also allows the stair system to be easily expanded, reconfigured, or moved.
  • Made in the USA and carries a three-year warranty.

This product resides in the following industries:






Number of Risers



Height adjustment

23” - 34”

27.5” - 42.5”

OSHA-compliant heights

25.5” & 34”

34” & 42.5”

Riser weight with legs

29 lbs.

34 lbs.

Riser handrail weight

7.8 lbs.

9 lbs.

Platform weight with legs

47 lbs.

47 lbs.

Platform handrail weight

17 lbs.

17 lbs.

System net weight

101 lbs.

107 lbs.

Footprint (fully assembled) (W x L x H)

41" x 89.5" x 76 5/8”

41" x 99" x 76 5/8”

Platform size – overall (W x L x H)

40” x 60” x 23”

40” x 60” x 23"

Platform size – useable (W x L)

36.5” x 56.5”

36.5” x 56.5”

Aluminum type

6000 series

6000 series

Rated load*

100 lbs. sq. ft., 300 lbs. concentrated

100 lbs. sq. ft., 300 lbs. concentrated

Standard feet

4” x 4” sq.

4” x 4” sq.

Riser height



Riser tread depth



Riser tread width



Riser handrail height – measured from 
leading edge of step tread to gripping surface



Platform handrail height




3 Years

3 Years

Riser type



Universal handrails

Left or right turn

Left or right turn

NOTE: Weights and dimensions are approximate and subject to change.

*Do not exceed rated load

For additional specs and dimensions see “Documents”


Available Options




Easy-to-install 96” canopy for overhead protection from the elements. The rust-resistant Canopy features an aluminum frame with 22-gauge galvanized steel roof. Attaches directly to the FORTRESS Stair, which means no footings or building alterations are needed.



Features a sturdy, boxed-frame design for superior strength and durability and all fittings are made of high quality aluminum or galvanized steel. The four-post canopy has cross member supports for wind load resistance.


Simple Installation

One-person assembly in under 30 minutes.


Safety and Durability

Exceeds NIOSH lifting recommendations. Each major component weighs less than 50 lbs. allowing for safe, one-person installation.


Adjustability and Use

The rapid-swap design also allows the canopy to be easily moved as needed. Generous, 96" measurement from walking surface to roof ensures plenty of door swing and light fixture clearance.


Oversized Feet

May eliminate the need for pavers in most soil conditions.


Platform with Drain Holes

Helps facilitate drainage with additional .75” holes in platform surface.


Secondary Handrails

If handrails need to be installed on both sides, additional riser handrails and platform handrails are available.



  • Although it's our intent to keep all documents current, some documents are subject to change and may take time to update. If you are unsure whether you have the most current revision or if your product is different, contact our technical support.


  • Are the stairs adjustable?

    Yes, both sizes of our OSHA Stair System are adjustable. The FOR2334 is adjustable to heights between 23” and 34” and the FOR2742 is adjustable to heights between 27.5” and 42.5”. The legs are adjustable and each size has two riser settings/positions; one with the top riser flush with the platform and one with the top riser one riser height below the platform. Use our FORTRESS Calculator to help!

  • At what heights are the stairs OSHA compliant?

    The FOR2334 is OSHA compliant at 25.5” and 34” and the FOR2742 is OSHA compliant at 34” and 42.5”.

  • Are the stairs easy to transport?

    Yes, the handrails fold flat and can also be used on either side for versatility. The stairs are also made of lightweight aluminum.

  • What kind of surface is used?

    Our tread consists of extruded aluminum with raised ribs for permanent slip resistance.

  • Do you offer a canopy for the stairs?

    Yes, we have a canopy option for our OSHA stair.

  • How many handrails are included?

    One handrail is included and can be used on either the left or right side of the stair system based on your needed configuration.


Thumbnail of the Product Overview - FORTRESS® OSHA Stair System | EZ-ACCESS video

Product Overview - FORTRESS® OSHA Stair System | EZ-ACCESS

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