Industrial mezzanines & steel stairs in Markham.
Span Line builds and installs structural mezzanines, work platforms, and steel stairs for Markham's light-industrial and distribution operations — Milliken and the employment lands around the 404 and 407.
In short: We're an Ontario fabricator serving Markham with mezzanines, platforms, and stairs, stamped to OBC 2024. The shop is a straightforward run across the top of the city, so Milliken and 404/407-corridor sites get scheduled measures and installs by our own crew.
- From our shop to Markham~40 min via 407
- Typical mezzanine lead time4 – 8 weeks from sign-off
- Typical stair lead time3 – 6 weeks from sign-off
- DrawingsP.Eng.-stamped to OBC 2024, in-house
For Milliken and the 404.
Markham blends a well-known technology sector with a solid base of light industrial, warehousing, and distribution — the Milliken employment area and the corridors along the 404 and 407. The buildings tend to be newer and cleaner than the old Toronto stock, which usually means better clear heights to work with when adding a mezzanine or a work platform.
That newer stock is well suited to storage mezzanines, pack-out platforms, and equipment decks that make more of an already-efficient footprint. From the shop, Markham is a run across the top of the city on the 407, keeping measures and installs on a tight schedule.
Steel that solves a floor problem.
Storage mezzanines
Recover cube over racking or open floor — 125–500 psf decks for pallet and case storage.
Work platforms
Pick modules, pack-out decks, and value-add stations with conveyor pass-throughs.
Equipment platforms
Elevated support for HVAC, process equipment, and conveyor drives.
Egress & access stairs
Code-required exit stairs and mezzanine access towers to OBC §3.4.6.
Guardrails & handrails
42" industrial guarding, mezzanine edge protection, and pallet-drop gates.
Catwalks & access
Service walkways and crossovers over lines and equipment.
Measure, stamp, build, install.
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01
Site measure
A ~30-minute visit to capture column centres, clear heights, and slab condition — Markham's newer buildings usually give us good clear height to work with.
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02
Stamped drawings
Engineered and P.Eng.-stamped to OBC 2024 in-house — the set the City of Markham Building Standards Department needs for the permit.
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03
In-house fabrication
Cut, welded, and finished at our shop to CWB W47.1 — not white-labelled out. Galvanizing or shop primer as the environment calls for.
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04
Install on your window
Sequenced to your operating schedule and installed by our own crew across Milliken and the 404/407 employment lands.
See the full engineering & install process for how each stage is controlled.
Span Line Systems is the industrial mezzanine and stair division of Art Metal Canada. Drawings are stamped by a PEO-licensed P.Eng. on staff; welding is done to CWB W47.1 and CSA W59 by our own certified fabricators. We don't white-label the fabrication or subcontract it out — the shop that draws it builds it.
- WeldingCWB W47.1 · CSA W59
- Structural codeOBC 2024 · NBCC §4.1.5
- EngineeringPEO-licensed P.Eng., stamped in-house
- ParentArt Metal Canada
Straight answers.
Which Markham areas do you cover?
What kind of steel do Markham facilities usually need?
Do you handle the OBC drawings for a Markham permit?
We cover the north and east GTA — Richmond Hill, Vaughan, Scarborough, Pickering — and ship province-wide. See the full service-area map or tell us the span.