Please be aware, all pricing and some products are currently being updated.

FAI is now under new ownership and the site is being reworked.

Please request current pricing and shipping to your needed ZIP CODE.

Modular Stairways

Our Modular Stairways kits are modular steel stair stringers; simply screw step/treads and railings to the engineered steel stair stringers to build solid, square & sturdy, free-standing indoor or outdoor stairs. OSHA and ANSI compliant design. With attractive powdercoat finish for added durability. Available in a standard variety of sizes to suit your needs, custom products upon demand, please inquire with your representative.

***Please be aware that all prices do NOT include freight.*** 

We have had to disable our online checkout feature because most of our products are too large to automatically calculate the freight and need to be run manually. Please contact us via phone at 877-324-9990 or email us at with your ship to zip code for a complete quote including your freight cost.

If you are looking for a custom product, please include the model number closest to what you need, along with your custom requirements!
For a complete quote including freight, include your shipping address or zip code. Freight quotes are valid for 30 days
Upload a specification sheet, drawing or a rendering for your estimate.

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Modular Stairways

Introducing our new Modular Stairways!

Modular Stairways Model# STAIR-48

Modular Stairways

Our attractive Modular Style Stairway is economical and easily assembled. Customer must provide their landing height at time of purchase. Landing is 36"W x 11-3/4"D. The 36"W x 7-1/4"D treads feature non-skid grip strut, which bolt in place and are baked-in powder-coated toughness. Standard climb angle is 31°. Handrails and side rails bolt together. The handrail tubing has a powder coat yellow finish. Units meet OSHA requirements and unit ships disassembled. Concrete Anchoring Hardware available. 1000 lbs. capacity.

**All measurements in the table below are represented in inches, pounds and $USD.

Modular Stairways
Model # # Steps Height  Weight Price
STAIR-36 5 36 330 $1,411.00
STAIR-48 7 48 400 $1,528.00
STAIR-60 8 60 490 $1,632.00
STAIR-72 10 72 580 $2,027.00
STAIR-84 12 84 660 $2,111.00
STAIR-96 13 96 770 $2,236.00
STAIR-108 14 108 864 $2,341.00
STAIR-120 15 120 950 $2,460.00
STAIR-132 18 132 1020 $2,566.00
STAIR-144 20 144 1102 $2,682.00


We can design and manufacture any fixed industrial ladder and stairway built according to your specifications based on your environment and application requirements. Our expertise includes in-house research and development, fully integrated manufacturing and an extensive materials line. With years of design, engineering and manufacturing experience, our dedicated staff can assist you from concept to completion in a timely fashion.


Please call for additional options or custom designs.
Fabrication Authorities International, LLC. Is your new “total access” solution.
We can customize most Industrial Maintenance Platforms to your specific needs. 
Please call (877) 324-9990 or (727) 324-4620 or (727) FAI-INC-0
Fax us your request at (888) 909-6780

Email us at


Searching for something special?

To place an order, learn more about our products, become a distributor, or to inquire about customization options, Get in touch by phone at the numbers below, or write to us in confidence through our secured contact page. A product expert will be happy to assist you today!