Toronto & GTA
Engineered luxury, structural precision, and modern design. Stamped by licensed Ontario P.Eng engineers and built to full OBC compliance.
INDUSTRIAL ELEGANCE
Anchored by a single structural steel center spine, mono stringer staircases deliver an open architectural feel with bold industrial definition. Perfect for custom residential builds and open-concept remodels, our single stringer systems pair heavy steel beams with precision-milled hardwood steps.
Heavy-Gauge Steel Spine
Single center beam powder-coated in matte black, architectural white, or custom finishes.
Precision Mounting Plates
Laser-cut steel bracket system eliminates tread flex and whisper-quiet stability.
Modern Open Riser Profile
Unobstructed light transmission and sightlines across multi-level floor plans.
Integrated Tread Customization
Custom hardwood milling paired with optional concealed LED riser lighting.
ARCHITECTURAL OVERVIEW
Mono Stringer stairs are designed around a simple architectural idea: the staircase should add light and volume to a home, not consume it. Across Toronto and the GTA, a custom mono stringer staircase replaces the closed, boxed-in flight with an open, sculptural structure that connects floors visually as well as physically.
Spatially, the impact is immediate. Open risers and slim structural profiles let daylight pass from upper windows down into hallways, living rooms and finished basements, extending sightlines across the main floor instead of stopping at a stair wall.
Behind the minimal appearance is serious structural framing. Each mono stringer stair is engineered with heavy-gauge steel anchored into reinforced wall backing or floor structure, with solid hardwood treads on laser-cut brackets — every build stamped by a licensed Ontario P.Eng to OBC Part 9.
Why homeowners, architects, and builders choose Mono Stringer for modern architectural projects.
Open-riser mono stringer stair geometry lets daylight travel between floors instead of stopping at a solid stairwell wall. Hallways, basements and living areas feel measurably larger and brighter.
Every mono stringer staircase is built around heavy-gauge structural steel that is welded, anchored and load-tested. Treads feel solid and silent underfoot — no bounce, no squeak, no perceptible deflection.
Choose solid White Oak, Walnut or Maple treads, powder-coated steel in matte black or architectural white, and frameless glass, cable or spindle guards. Everything is specified to match your flooring and millwork.
A custom mono stringer staircase is a permanent architectural feature buyers notice immediately. Across the GTA luxury market, a sculptural feature stair lifts perceived home value well beyond its build cost.
Drawings are stamped by a licensed Ontario P.Eng and engineered to OBC Part 9 — 900 mm guard heights and 100 mm child-safety spacing. Your inspection passes the first time.
One team handles laser measurement, 3D modelling, shop fabrication and installation. Every mono stringer stair is backed by our written craftsmanship warranty.
Custom staircase pricing across Toronto and the GTA is calculated from three variables: the materials you select, the structural engineering the design demands, and the site conditions we build around.
Get Exact EstimateEvery flight is laser-measured on site, modelled in 3D, and fabricated in our Toronto shop to ±1 mm tolerance using premium hardwoods, structural steel and certified tempered glass.
Engineering
Every cantilevered and floating stair system is custom engineered to surpass OBC live load requirements (minimum 1.9 kPa / 40 lbs/sq.ft). Includes internal heavy-gauge steel stringers and hidden wall mounting plates.
Designed in strict adherence to OBC Part 9 regulations: Maximum 200 mm riser height, minimum 255 mm tread depth, 900 mm interior guard height, and strict enforcement of the 100 mm (4") sphere safety rule.
Utilizing CAN/CGSB 12.1-2017 safety-certified 12 mm clear tempered glass or 13.52 mm SentryGlas laminated glass for frameless standoff systems, ensuring shatterproof structural safety.
Process
Laser measurement of the opening, then full 3D CAD drawings of every tread, stringer and guard.
Licensed Ontario P.Eng stamps the drawings and we prepare everything your municipality requires.
Steel is CNC-cut, welded and powder-coated in our shop while hardwood treads are milled to ±1 mm.
Protected install in 1–3 days, followed by a code and finish inspection walkthrough.
On-site measure
We laser-measure your opening and confirm code-compliant rise and run.
Shop drawings
You approve 3D drawings, materials and finishes before anything is cut.
Fabrication
Steel and hardwood are built in our Toronto shop to ±1mm tolerance.
Installation
Most flights install in 1–3 days with minimal disruption.
Tell us about your project — we reply within one business day.
FAQ
Floating and cantilevered stairs need a load-bearing wall or a steel-reinforced stud pocket. We supply embedded steel plates or a concealed spine that ties into framing before drywall, all sized by our P.Eng to exceed the 1.9 kPa live load requirement.
Yes. We use CAN/CGSB 12.1-2017 certified 12 mm tempered or 13.52 mm SentryGlas laminated panels, mounted at a 900 mm interior guard height with hardware tested for the required lateral load, and supply stamped drawings for permit review.
Most custom mono-stringer flights land between $18,000 and $35,000 installed; floating and cantilevered systems with frameless glass typically run $28,000 to $60,000+ depending on span, species and railing. We quote firm pricing after the site measure.
Plan on 6–10 weeks: about one week for CAD and engineering sign-off, 4–6 weeks for fabrication and finishing, then 1–3 days on site for installation and final inspection.
Floating Stairs
Open-riser treads that appear to hover in mid-air.
View styleCantilevered Stairs
Treads anchored into the wall with zero visible support.
View styleWaterfall Stairs
Continuous grain flowing from tread to riser.
View styleGlass Railings
Frameless tempered glass guards and handrails.
View styleOpen Stringer Stairs
Notched stringers with exposed tread ends.
View styleSide Stringer Stairs
A single side beam with clean, uninterrupted lines.
View style