Industrial steel beam floating stairs in a Toronto loft

Industrial Steel Beam Floating Stairs in Toronto, ON

Heavy-duty laser-cut steel stringer systems for King West lofts, Distillery District interiors, and Toronto commercial spaces that need exposed structure as the architectural statement.

Toronto Floating Stairs fabricates industrial steel beam floating stair systems for Toronto lofts, commercial interiors, and residential projects where the structure itself is meant to be seen.

A steel beam staircase built for a King West loft or a Distillery District commercial space is a fundamentally different product than a residential floating stair system. The steel profile is heavier. The welds are structural and visible. The surface finish — raw steel, blackened, powder-coated, or mill scale sealed — is part of the design intent, not a protective afterthought.

We use laser-cut steel plate stringers as the primary structural element. Laser cutting allows us to cut custom stringer profiles — notched for tread integration, perforated for lightness, or formed with decorative geometry — with tolerances that welded fabrication can't match. The cut edges are clean without grinding or secondary finishing.

Steel stringers for floating stairs in Toronto need to be designed to actual loads and spans, not selected from a product catalogue. We calculate the required plate thickness, weld specification, and anchorage based on the specific stair geometry and OBC loading requirements. This matters more in commercial projects where loading requirements are significantly higher than residential.

For exposed steel, finish selection is permanent. We offer hot-rolled mill scale sealed with a matte penetrating oil, powder coat in custom RAL colours, blackened steel with a wax seal, and clear epoxy over blasted steel for maximum texture. Each finish reads differently under different lighting conditions — we provide samples before the project starts.

Steel stringer configurations

Mono stringer systems use a single centre beam with tread plates welded to each side. Double stringer systems use two parallel beams — one on the wall side, one on the open side — which allows heavier tread spans and a more open visual profile. Open-riser steel systems allow sightlines through the stair entirely, which works well in open-plan lofts.

Steel beam floating stair in a Toronto commercial space

Design a steel stair for your Toronto space

Free site visit. Finish samples provided. Steel profile and load calculations coordinated before fabrication begins.

  • ✓ Raw mill scale with penetrating oil
  • ✓ Powder coat — custom RAL colours
  • ✓ Blackened steel with wax seal
  • ✓ Clear epoxy over blasted steel
  • ✓ Painted primer + topcoat

From Field Measurement to Finished Steel

Steel floating stair installation in progress in Toronto
01
Site Measurement & Wall Assessment
We measure floor-to-floor height, stair width, and wall conditions. Load-bearing capacity of the anchor wall is assessed before steel profile is selected.
02
Structural Calculation & OBC Engineering
Plate thickness, weld specification, and anchorage design are calculated for the specific span and OBC loading. Drawings are prepared for permit submission.
03
Laser Cut & Fabrication
Stringer plates are laser-cut to final dimensions from structural steel. Welds are made by certified welders. Tread brackets are integrated in the fabrication phase, not added post-installation.
04
Surface Finishing
Steel is finished — blackened, powder-coated, or sealed — before delivery to site. Touch-up finishing is done after installation to cover weld areas.
05
Installation & Tread Setting
Stringers are anchored to wall and floor structure. Treads are set and fastened. Railing system installed in the same site visit. Inspection support provided.

Frequently Asked Questions

How heavy are steel beam floating stairs? +
Structural steel stringers add significant dead load compared to wood or aluminum systems. We account for this in the floor structure assessment and anchorage design. In most Toronto residential applications, existing concrete slabs and stud walls handle the loads without additional structural support.
Can steel floating stairs be installed in a residential Toronto home? +
Yes. Steel beam floating stairs are popular in residential Toronto lofts, custom homes, and high-end renovations. The industrial aesthetic works particularly well in open-plan spaces with concrete floors, exposed ceilings, and minimalist finishes.
Do powder-coated steel stairs rust? +
Powder coat provides a sealed barrier that prevents oxidation. Properly applied powder coat on interior steel doesn't rust under normal conditions. For exterior steel stairs, we recommend hot-dip galvanizing as an undercoat before powder coat, or a sacrificial zinc primer system.
What tread materials work with steel beam floating stairs? +
Hardwood treads are the most common pairing — white oak or walnut on a blackened steel stringer creates a strong contrast. Raw steel tread plates work for fully industrial aesthetics. Glass treads can be integrated into steel beam systems for a more contemporary look.
How long does steel stair fabrication take? +
After site measurement and OBC permit approval, fabrication typically takes 3 to 4 weeks for a standard residential stair. More complex commercial projects or custom laser-cut profiles may run 5 to 6 weeks. We provide a production schedule before deposit.

Ready to fabricate your Toronto steel floating stair?

Free site assessment. Steel finish samples brought to your space. Proposal within 48 hours.