Tower Stairs Designed for Safety, Speed, and Precision
McGregor tower stairs are designed for constructibility, with McGregor Ironworkers installing them safely, on time, and with uncompromising quality.

Proven Steel Systems for the Field
McGregor’s tower stairs are designed and fabricated for repeatable accuracy and efficient field installation. Our in-house detailers, fabricators, and McGregor Ironworkers work as one, ensuring every stair fits perfectly, installs safely and quickly, and performs reliably on site.
Built Smart from the Start
Our Tekla-detailed models ensure every connection, landing, and railing is field-ready before fabrication begins. By modeling the full assembly, we eliminate site adjustments and improve coordination with other trades, so you don’t have to worry about the stairs. McGregor has it covered from design to install.


Choose from Three Proprietary McGregor Stair Systems™
McGregor offers a full range of proprietary tread systems engineered for safety, durability, and field efficiency. Each option is manufactured and installed by McGregor Ironworkers to ensure a perfect fit and consistent quality on every project.
TopTread™:Our most popular stair system, this non-slip surface is an economical choice ideal for high-rise and multi-level construction.
EasyStep™:Designed with a solid feel, EasyStep™ delivers the strength of a traditional steel stair while eliminating the need for field pouring.
PermaStep™: A heavy-duty stair solution built for areas with high traffic and demanding environments.

Safer Installs. Faster Schedules. Better Results.
McGregor fabricates tower stairs with modular precision and consistent quality. Our Alpha Rail system can be installed immediately after erection to provide temporary fall protection until permanent walls are in place. With Alpha Rail, stairs can be used safely throughout construction, giving crews secure access without delaying progress. With a range of tread options, each stair system can be customized to your project’s specific load, finish, and durability needs.

Why Contractors Trust McGregor Tower Stairs

“McGregor’s tower stairs install faster and safer than anything we’ve used before.”

111 Wall Street
The Stair Project That Didn’t Slow Manhattan’s Office-to-Residential Conversion
Proven Steel Systems for the Field
McGregor’s tower stairs are designed and fabricated for repeatable accuracy and efficient field installation. Our in-house detailers, fabricators, and McGregor Ironworkers work as one, ensuring every stair fits perfectly, installs safely and quickly, and performs reliably on site.
