01
Monumental pivot doors
Steel-framed entries that swing on a concealed floor spindle - doors up to 12 feet tall and 600 pounds that move at the touch of a hand. Welded, ground, and finished as a single architectural plane.
Architectural metal - made to order
The threshold is thefirst impression.
Obsidian Threshold designs and fabricates custom pivot doors and driveway gates in raw steel - engineered with builders and architects who don't settle for catalog hardware.
Pivot doorsThermal breakDriveway gatesRaw steelConcealed automationBespoke hardware
What we build
Three disciplines, one obsession with the edge where steel meets the building.
02
Thermal-break engineering
A polyamide isolation core severs the heat path through the frame, so a wall of raw steel performs to spec in any climate. No condensation, no cold bridge - the same detail that lets curtain-wall facades stay sealed, brought to the front door.
03
Custom driveway gates
Cantilever and swing gates fabricated to the grade of the drive, with hidden automation, intercom integration, and finishes that read as part of the architecture rather than bolted onto it. Steel that secures the property without ever looking like security.
12 ft
Maximum door height
600 lb
Pivots on a fingertip
1/16 in
Reveal tolerance
100%
Built in-house
How it works
From a set of drawings to a piece that swings true.
We work directly alongside your design and construction team, owning the metal from first measurement to final balance on site.
- 01
Consultation
We sit with you, your architect, and the drawings. We talk tolerances, sightlines, and how the piece has to feel in the hand before anything is cut.
- 02
Engineering
Shop drawings, structural calcs, and thermal modeling. Every weld, hinge, and break is detailed and approved before steel is ordered.
- 03
Fabrication
Built in our shop by the same hands start to finish. Cut, welded, ground flush, and hand-finished to the exact patina or coating you specified.
- 04
Installation
Delivered and set by our own crew, plumbed and balanced on site. We don't leave until the door swings true and the gate tracks silent.
Start a project
Tell us what you're building.
Send the drawings, the opening dimensions, or just the idea. We reply within two business days with a scope, a budget range, and a path to first shop drawings.
- Working with
- Custom builders & architects
- Typical lead time
- 10 - 16 weeks