The last phase of a stair project is the one most likely to be rushed, because by the time the stair is in, everyone involved is looking at the next thing. It is also the phase that determines whether small problems get fixed while a crew is still mobilised or become a service call six months later. Inspection confirms the stair meets the requirements it was designed to. Handover transfers the information a building owner needs to keep it that way. Both are short if the earlier phases were done properly, and both are worth doing deliberately.
What a building inspector looks at on a stair
Where the work was permitted, a municipal inspector reviews the stair against the code in force for that permit. The checks are dimensional and physical rather than aesthetic, and they concentrate on the things that cause injuries. Knowing what will be measured is useful, because these are the same items worth verifying yourself before calling for inspection.
- Riser height and tread depth within the permitted range, and uniform within the flight.
- Headroom clearance along the full walking path.
- Guard height, correct for the drop below and the building classification.
- Guard openings: no opening permitting a 100 mm sphere to pass.
- Handrail presence, height, graspability, and continuity along the flight.
- Stair width and any landing dimensions required for the occupancy.
The failures we see repeat
A small number of issues account for most stair inspection failures, and every one of them is preventable at drawing stage. The most common is a compliant guard with no compliant handrail, usually where a frameless glass panel was assumed to satisfy both requirements. Close behind is a non-uniform riser at the top or bottom of a flight, caused by a floor level that changed after the stair was fabricated. Third is a guard opening that fails the sphere rule at the triangular gap where a raked bottom rail meets a tread nosing. Our guard versus handrail guide explains why the first of these is so persistent.
- Guard present, handrail missing or not graspable: the most common failure.
- One odd riser where finished floor levels moved after fabrication.
- Sphere-rule failure at the raked bottom rail near the tread nosing.
- Handrail terminating mid-flight or not continuing across a landing.
Field review by the engineer is a separate step
Where a stair was engineered, the engineer's scope frequently includes field review during or after installation to confirm the work was built as designed. This is distinct from the municipal inspection and serves a different purpose: the inspector confirms code compliance, the engineer confirms their design was executed. On projects requiring a structural schedule, the engineer's sign-off is typically part of closing the permit. Scheduling that review while the stair is accessible, before adjacent finishes close in connection points, avoids opening finished work later.
Deficiency walk while the crew is still mobilised
Walk the stair with the installer before they leave. Look at it in the lighting it will actually live under, since raking light across a powder-coated surface shows things that overhead work lights hide. Note finish blemishes, touch-up needed at field welds, hardware that is not seated cleanly, and anything loose. Items found now are usually corrected the same day. The same items found after demobilisation become a scheduled return visit, which is slower for everyone and occasionally becomes a dispute about when the damage happened.
- Inspect under real lighting conditions, including any raking light.
- Check every fixing is tight and every component fully seated.
- Note finish blemishes and field weld touch-up while the crew is present.
- Confirm glass is free of scratches and edge damage before sign-off.
- Agree in writing what will be corrected and when.
What handover documentation should include
A stair is a permanent structural element and the building owner should receive a record of it. For a strata or commercial building this matters more, because the people responsible for maintenance in ten years will not be the people who commissioned it. For a house it still matters at resale, when a buyer's inspector asks whether the work was permitted.
- As-built shop drawings, reflecting any approved changes.
- Finish specification: system, product, and colour reference for future touch-up.
- Engineer's documentation and seal where the project required it.
- Permit and inspection records from the municipality.
- Maintenance schedule appropriate to the finish and the exposure.
- Warranty terms, and what they cover.
Maintenance expectations start at handover
What a stair needs over its life depends on its finish and its exposure, and the moment to explain that is at handover rather than after something has degraded. An interior powder-coated stair needs little beyond cleaning. An exterior galvanized and topcoated stair needs periodic inspection of the coating, particularly at the base of posts where water collects. A cable railing needs its tension checked, because stainless cable stretches and a run that met the sphere rule at handover can open past it over a few years. Glass needs cleaning to keep the transparency it was bought for. Our stair and railing maintenance guide sets out intervals by finish and exposure.
Warranty covers workmanship, not construction traffic
Warranty terms should be clear about the boundary between a fabrication or installation defect and damage caused after handover. A weld that fails, a coating that delaminates on its own, or a connection that loosens under normal use is workmanship. A scratched tread from a fridge being carried up during the rest of the renovation is not, which is why protection during construction matters. Settling this understanding at handover, in writing, prevents the conversation happening later under worse conditions.
Related questions
What does a building inspector check on a new staircase?
A building inspector checks a staircase against the code in force for its permit, concentrating on dimensional and physical items. That means riser height and tread depth within the permitted range and uniform within the flight, headroom along the full walking path, guard height correct for the drop below, no guard opening passing a 100 mm sphere, and handrail presence, height, graspability and continuity.
What is the most common reason a staircase fails inspection?
The most common staircase inspection failure is a compliant guard with no compliant handrail, usually where a frameless glass panel was assumed to satisfy both requirements. A glass panel is a barrier with no graspable profile, so it meets the guard requirement and not the handrail one. The fix is a slim handrail on the glass top edge or a wall-mounted handrail, both easier to plan than to retrofit.
Why does one riser end up a different height?
One odd riser at the top or bottom of a flight almost always means finished floor levels changed after the stair was fabricated, because riser height is divided from the exact floor-to-floor dimension. Since the BC Building Code requires risers within a flight to be uniform, that single odd step is both a trip hazard and an inspection failure. Measuring after flooring build-up is known prevents it.
Is the engineer's field review the same as the building inspection?
The engineer's field review is separate from the municipal building inspection and serves a different purpose. The municipal inspector confirms code compliance. The engineer confirms their specific design was executed as drawn. On projects requiring a structural schedule, the engineer's sign-off is typically part of closing the permit, and scheduling it while connections are still accessible avoids opening finished work later.
What documentation should I receive when a staircase is finished?
Handover documentation for a staircase should include as-built shop drawings reflecting approved changes, the finish specification with product and colour reference for future touch-up, the engineer's documentation and seal where required, permit and inspection records, a maintenance schedule matched to the finish and exposure, and written warranty terms. This matters most for strata and commercial buildings where future maintainers were not involved in the project.
When should I do a deficiency walk on a new stair?
The deficiency walk should happen with the installer present, before they demobilise. Inspect under the lighting the stair will actually live under, since raking light reveals finish blemishes that overhead work lights hide. Check that fixings are tight, components are seated, glass is free of scratches, and field welds are touched up. Items found then are usually fixed the same day.
Does cable railing need maintenance after installation?
Cable railing needs its tension checked periodically because stainless cable stretches over time. A run that satisfied the 100 mm sphere rule at handover can open beyond it within a few years without retensioning, which turns a compliant guard into a non-compliant one. This is the maintenance item most often missed, and it is a safety requirement rather than an appearance one.
What does a staircase warranty typically cover?
A staircase warranty typically covers workmanship: a weld that fails, a coating that delaminates on its own, or a connection that loosens under normal use. It does not typically cover damage from construction traffic after handover, such as a tread scratched while appliances were carried up during the rest of a renovation. Settling that boundary in writing at handover avoids disputes later.
How do I keep an exterior steel stair in good condition in Vancouver?
An exterior steel stair in Metro Vancouver's wet climate needs periodic coating inspection, with particular attention to the base of posts where water collects and drains poorly. Damage to a coating is repaired before corrosion establishes underneath it. The required interval depends on the finish system and the exposure, with waterfront and salt-spray locations needing more frequent attention than covered inland ones.
Continue reading
- Previous step: 6. Delivery & Installation
- Stair project process overview
- BC Building Code for stairs and guards
Talk through inspection and handover: closing out a stair project for a real Vancouver project
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