Diameter and floor height confirmation
Measure available floor area, confirm headroom clearance, and determine the right diameter and tread geometry for the actual use — code compliance and practical comfort both matter.
Coquitlam spiral stairs solve tight access problems in Burke Mountain new builds with secondary suite connections, Maillardville coach houses, and Westwood Plateau homes where a conventional stair run doesn't fit in the available footprint. The active local building market means spiral stair projects often run on builder or developer timelines rather than owner-paced schedules.
A spiral staircase solves space constraints but needs careful attention to diameter, tread geometry, guard height, and how people will actually use the stair.
Coquitlam has active new-build and renovation markets, especially for modern stairs, glass railings, and exterior metalwork.
| Scope | Typical range | Notes |
|---|---|---|
| Interior spiral stair | $12,000-$24,000 | Diameter and guard detail drive cost |
| Exterior galvanized spiral | $16,000-$32,000 | Weather-ready finish and site access |
| Custom architectural spiral | $28,000-$55,000+ | Feature-grade detailing |
Measure available floor area, confirm headroom clearance, and determine the right diameter and tread geometry for the actual use — code compliance and practical comfort both matter.
Calculate tread angle, rise, and run; design the guard and handrail to meet the BC Building Code guard height and opening requirements for the specific space.
Fabricate the steel centre column, tread plates, and balustrade as a unit in the shop; trial-fit before finish is applied.
Interior spirals typically take powder coat or clear coat; exterior applications need galvanizing or marine-grade powder coat rated for the exposure conditions.
Spiral stairs are typically installed in a single operation — column, treads, and guard arrive together; lower and upper connection points are confirmed before the unit is set.
1.8 kPa reference value for early planning. Final engineering confirms project-specific assumptions.
none exposure. Finish and hardware choices should follow the exact site conditions.
Structural stair and guard work should be aligned with City of Coquitlam requirements before fabrication.
Spiral Staircase pricing depends on dimensions, railing type, finish, access, and engineering. Current planning ranges on this page run from $12,000-$24,000 depending on scope.
Most spiral staircase projects run 6–10 weeks from a confirmed order: 1–2 weeks for shop drawings and engineer review, 3–5 weeks in fabrication, and 1–2 weeks for finishing and installation scheduling. Coquitlam site access and permit timing can shift that window, so starting the quote early gives the most flexibility.
Floor-to-floor height or linear footage, site photos, any existing drawings, finish preference, and whether a permit has been applied for. For Coquitlam projects, confirming the finish and connection details early avoids changes after shop drawings are approved.
Send drawings, photos, or a rough scope and we will help define the practical next step.