Utah Custom Metal Fabrication  ·  Est. 1982

Where Architecture
Meets Metalwork.

Trusted by Utah's top general contractors and interior designers for over 40 years. We build the staircases and railings that define your client's most exceptional spaces.

Inquire About a Project

Selected Work

Crafted for Utah's
Most Exceptional Residences

Custom floating staircase with horizontal steel railings — ultra-luxury Utah residence
Custom wrought iron curved staircase railing — luxury Utah home
Floating staircase with glass panel railings — Park City Utah
Dramatic interior spiral staircase — Deer Valley Utah
Exterior curved spiral staircase — Promontory Club Park City
Custom architectural spiral staircase exterior — The Colonies at White Pines Utah
Communities Served
Deer Valley Promontory The Colonies at White Pines Deer Crest Park City Alpine Midway Salt Lake Valley

How We Work

A Process Built for
Trade Professionals

01
Project Consultation
We review your plans, scope, and timeline. We work directly from architectural drawings or develop concepts from scratch alongside your team.
02
CAD Design & 3D Modeling
Our in-house design team produces full AutoCAD drawings and 3D models for your approval before a single piece of steel is cut. No surprises on site.
03
In-House Fabrication
Every component is fabricated in our North Salt Lake shop — bending, welding, finishing, and quality control all under one roof before it leaves our floor.
04
On-Site Installation
Our crews handle delivery and installation to your schedule. We coordinate directly with your GC team and stay on-site until the work meets spec.

About Knox Custom

Four Decades.
Built to Last.

Founded in 1982, Knox Custom Fabrication has spent over 40 years setting the standard for architectural metalwork in Utah's most demanding luxury markets. We work exclusively with general contractors and interior designers — because the professionals who specify our work understand what it takes to execute at this level.

From floating staircases in Deer Valley to sweeping exterior railings at Promontory and bespoke ironwork at The Colonies at White Pines, our work defines the homes where the details are non-negotiable.

40+
Years in Business
$10M+
Avg. Project Home Value
100%
Trade Referral
In-House
Design & Fabrication

Capabilities

Custom Staircases
Floating, spiral, curved, and straight-run — designed to architectural spec and fabricated entirely in-house.
Wrought Iron & Steel Railings
Interior and exterior railing systems including cable rail, glass panel, and custom ironwork in any finish.
Architectural Metalwork
Gates, screens, decorative panels, and structural elements that integrate with your most ambitious design visions.
AutoCAD Design & 3D Modeling
In-house design with full 3D visualization. We work directly from your plans or develop from concept.
Full Welding & Fabrication
MIG, TIG, stainless, aluminum. Bending, shearing, forming, plasma cutting — in-shop and portable on-site.

Get in Touch

Work With Us
on Your Next Project

We partner exclusively with licensed general contractors, interior designers, and architects on ultra-luxury projects throughout Utah. If you're specifying metalwork for a high-end build, we'd like to hear from you.

We work exclusively with trade professionals. This form is intended for GCs, designers, and architects only. We'll follow up within a few business days once we've reviewed your project details.

For trade professionals only. We do not take direct homeowner inquiries.

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Inquiry Received

We'll review your project details and follow up within a few business days.