Glass vs Aluminum Railing: Durability, Views and BC Code Compared
Glass vs aluminum railing, straight answer: glass keeps your view open, aluminum costs less and needs almost no upkeep. Both meet BC code when we build them. Pick glass for a view worth framing, aluminum if budget and low maintenance matter more.
We design, build and install both styles ourselves, with our own West Kelowna crew.
Glass vs Aluminum Railing: Compare by Factor
Both railings do the same job: keep people on the deck and off the ground below. Where they split is the view, the upkeep and what they cost to put up. Here’s the honest side-by-side before you pick one.
| Factor | Glass Railing | Aluminum Railing |
|---|---|---|
| View | Open, nothing in the way | Pickets break up the sightline |
| Cleaning | Needs regular glass cleaning | Hose it down once a year |
| Wind | Blocks wind on the deck | Lets wind pass through |
| Privacy | None, it’s clear or lightly tinted | Pickets add a small visual break |
| Code | Meets BC guard code (tempered glass, sphere rule) | Meets BC guard code (picket spacing, sphere rule) |
| Cost | Higher | Lower |
BC Building Code for a Deck With Aluminum Railing or Glass
Both systems have to meet the same guard requirements under the BC Building Code. Height depends on how far the deck surface sits above grade, not on whether the railing is glass or aluminum.
Aluminum Handrails for Decks: Guard Height by Grade
Once your deck surface sits more than 600 mm (about 24 inches) above grade, you need a guard. From there up to 1.8 m (6 ft) above grade, BC code sets the guard height at 900 mm, which most people just call the 36-inch height. Above 1.8 m, the required height jumps to 1,070 mm, or 42 inches. We measure your deck’s height above grade before we quote, so the number on your invoice already matches code.
The 100 mm Sphere Rule for Decking Handrail Glass
Code also limits the size of any opening in the guard. Nothing in the railing, picket gap or glass joint, can let a 100 mm (4 inch) sphere pass through. That rule applies the same way whether you go with glass panels or aluminum pickets. For the full height table and the stair exceptions, see our deck railing height and BC code guide.
Glass Railing for a Balcony or a View Deck
If the reason you’re even considering glass is the view off a balcony or an elevated deck, this is the part that matters. Glass is frameless or semi-frameless, 12 mm tempered safety glass set into a base shoe or between posts, and there’s nothing at eye level to block the lake, the valley or the hills.
Black Aluminum Railing or a Custom Colour Match
Aluminum pickets come in black, white or a custom colour matched to your house. Black disappears against trees and shadow, which is why it’s the pick on most of our view decks that go aluminum instead of glass. White reads more traditional and shows dust a bit faster.
Glass Deck Panels for an Unbroken View
Glass deck panels run in one continuous sheet between posts, so there’s no picket and no horizontal rail crossing your sightline when you’re sitting down. That’s the honest reason people pay more for glass: it’s the only railing that disappears completely.
Aluminum Porch Railing and Glass Panels: What We Get Called to Fix
Most railing problems we get called out for aren’t the material’s fault, they’re how it was installed or how it’s been kept up. Here’s what we see most.
Five Railing Mistakes We Get Called to Fix
- Glass left to sit dirty all season. Hard water and pollen build up fast on glass; a quick rinse every few weeks keeps it clear.
- Loose fasteners on an aluminum post. Freeze-thaw works screws loose over a few winters. A yearly check with a screwdriver stops the wobble before it starts.
- Picket spacing that doesn’t meet the sphere rule. Older DIY railings sometimes have gaps wide enough to fail inspection. We check this on every quote.
- A railing built to the wrong height for its grade. Guessing 36 inches everywhere is a common mistake; the real number depends on how high the deck sits.
- Glass panels installed without the base shoe sealed properly. Water gets underneath and the panel shifts. Sealing it right the first time stops this.
Honestly, glass isn’t maintenance-free. It needs more regular cleaning than aluminum, plain and simple. If you’re not going to keep up with that, aluminum will look better for longer with less work. If you’re not sure which one your deck needs, send us a photo through the form below or contact us directly.
Aluminum Deck Railing or Glass: Which Fits Your Deck?
Forget the sales pitch. Match your situation to the table below and you’ll know which one to call us about.
Aluminum Railing for Stairs and Steps
Stairs see more wear than a flat deck run: more hands grabbing the top rail, more boots and de-icer in winter. Aluminum handles that traffic well, and it’s what we install on most stair runs, glass or not on the deck above.
| Your deck | Go with |
|---|---|
| Faces a lake, valley or mountain view | Glass |
| Faces a fence, trees or a neighbour’s yard | Aluminum |
| Budget is the deciding factor | Aluminum |
| You want close to zero maintenance | Aluminum |
| It’s an elevated balcony with a view below | Glass |
| Stairs or a high-traffic entry | Aluminum |
| You want glass where you sit, aluminum everywhere else | A mix of both, same posts |
See finished railings on our deck railings page, compare every railing material side by side in our materials comparison guide, or see what a glass patio cover looks like paired with glass railing. Or skip the research: send us a photo of your deck and we’ll tell you which one we’d build.
Recent Railing Projects
A few we’ve built recently — every one custom-made in West Kelowna and installed by our own crew.
Railing Questions, Answered
Are glass railings worth it?
If your deck has a view, yes. Glass keeps the sightline open and most homeowners who choose it don’t regret the extra upkeep. If your deck faces a fence or your neighbour’s yard, the view argument disappears and aluminum does the same job for less.
How much do glass railings cost in BC?
Glass costs more than aluminum, that part’s consistent everywhere in BC. The real number depends on your deck’s length, corners, gates and stairs, so the only honest way to answer is a free on-site quote where we measure your deck.
Is glass railing more expensive than metal?
Yes. Glass is the premium option, and aluminum (which most people mean by “metal” railing) costs less to buy and install. How much more depends on your deck’s size and layout.
What is the safest railing option for a deck?
Both are safe when built to BC code. Tempered glass holds its shape if it ever breaks instead of shattering into shards, and aluminum simply doesn’t break. The bigger safety factor is correct height and spacing for your deck’s height above grade, not the material.
What’s the BC code height for a deck railing?
900 mm (about 36 inches) once your deck surface is more than 600 mm above grade, and 1,070 mm (42 inches) once it’s higher than 1.8 m above grade. Openings in the guard can’t let a 100 mm sphere through, glass or aluminum.
Can I mix glass and aluminum railing on one deck?
Yes, and we build it that way often. Glass where you sit to keep the view, aluminum pickets on the sides and stairs. Same posts throughout, so it still reads as one system.
Which railing needs less maintenance, aluminum or glass?
Aluminum, by a wide margin. A yearly hose-down and a check of the fasteners is about it. Glass needs more regular cleaning to stay clear, that’s the honest trade-off for the view.
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Designed, built and installed in the Okanagan by our own crew. 1,500+ projects since 2005, 4.9 stars across 32 Google reviews.
Serving Kelowna, West Kelowna, Vernon, Penticton, Lake Country & Salmon Arm