Industrial mezzanines & steel stairs in London.
Span Line engineers, fabricates, and installs structural mezzanines, guardrails, and steel stairs for London-area manufacturing and distribution — shipped down the 401 and installed by our crew, or supplied to your contractor.
In short: We're an Ontario fabricator serving London with mezzanines, rooftop guardrails, and stairs, stamped to OBC 2024. London is about two hours down the 401, so we ship the finished steel and install with our own crew on larger projects, or supply it contractor-ready.
- From our shop to London~2 hrs via 401
- 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 the 401/402 corridor.
London anchors southwestern Ontario's manufacturing — food processing, auto parts, and distribution across the Innovation Park, the Veterans Memorial Parkway corridor, White Oaks, and Wilton Grove, all served by the 401 and 402. It's a market where a well-built mezzanine, a rooftop guardrail, or a run of egress stairs is a routine part of keeping a plant compliant and productive.
At roughly two hours down the 401, London is a ship-and-install market for us: the steel is engineered, fabricated, and finished in our shop, then freighted down and set by our crew on larger projects, or supplied contractor-ready for a local install. Modular, bolt-together detailing makes that clean when a full install trip isn't warranted.
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.
A 420-lf rooftop guardrail.
For a London building we supplied and installed roughly 420 linear feet of non-penetrating rooftop guardrail — fall protection around a roof work area without drilling the membrane. Non-penetrating guardrail is all about the ballast and the layout: it has to hold the required load without a single roof penetration to void a warranty.
Read the full case study →- TypeRooftop guardrail
- Length~420 linear ft
- MethodNon-penetrating / ballasted
- PurposeRoof-edge fall protection
- LocationLondon, ON
Measure, stamp, build, deliver.
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01
Site measure
For London we often work from your drawings and photos plus a coordinated site visit for anything attached to existing structure — enough to lock the design before fabrication.
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02
Stamped drawings
Engineered and P.Eng.-stamped to OBC 2024 in-house — the set the City of London Building Division 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
Delivery & install
Crated and freighted down the 401. On larger London projects we install with our own crew; on smaller ones we supply contractor-ready with erection drawings and phone support through the set.
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.
Do you install in London, or only ship?
Which London areas do you serve?
Are your drawings valid for a London permit?
We serve southwestern Ontario — Woodstock, Ingersoll, Sarnia, Windsor — and ship province-wide. See the full service-area map or tell us the span.