Mount Rainier
A heavy-duty dual-frame stair system designed for wider spans, refined structure, and clean modern execution.
System Overview
The Mount Rainier stair system uses dual rectangular tube framing with industrial rectangular riser tubes and square tread plates. Designed for wider stair runs and strong visual structure, Mount Rainier provides a robust foundation while maintaining a refined architectural appearance.
Specifications
- System Type: Dual rectangular tube frame stair system
- Construction: Industrial rectangular riser tubes
- Tread Support: Square tread plates
- Treads: Thick wood stair treads
- Maximum Run: 20 feet
- Minimum Width: 40 inches
- Maximum Width: 60 inches
Ideal Applications
Mount Rainier is well suited for wider stair openings, longer spans, and projects where structural presence and clean architectural detailing are both important.
Available Options
- Wood tread species and finish
- Steel finish selection
- Glass, cable, or metal railing systems
- Top-mount or side-mount railing coordination
- Project-specific width and detailing
- Interior finish options including powder coat, black patina, or raw metal with oil sealer
Available Finishes
Powder Coat
Durable architectural finish available in a wide range of standard and custom colors.
Black Patina
A hand-applied finish that highlights the character of the steel while providing a refined appearance.
Raw Steel with Oil Sealer
Preserves the natural appearance of steel while providing protection for interior applications.
Start Your Mount Rainier Stair Project
To discuss project fit, dimensions, finishes, and railing options, contact SIG Design-Build to begin coordination.