What do deck stairs and balustrades cost in Sydney in 2026?

Published 2026 price guides put a flight of deck stairs in Sydney at about $1,150 to $5,200, and a balustrade at about $170 to $520 a metre, with timber and wire towards the lower end and glass well above it. Where your job lands depends on the height, the number of steps, the materials and what the stair or balustrade fixes to. The only reliable figure is a quote made after someone has measured the site.

This guide sets out what those guides say, and what moves the price up or down. When you are ready for a figure, our stairs and balustrades page explains how we inspect and quote.

What do published price guides say about stairs?

The figures below are from What’s The Damage?’s decking cost guide for Sydney (updated October 2026, checked October 2026). It compiles public cost guides and industry rates rather than quoting jobs itself. They are Sydney prices including GST, from low to high:

Deck steps, per step (typical $345)

$205–$460installed

Deck stairs, per flight (typical $2,300)

$1,150–$5,200installed

And about balustrades?

The same guide puts a deck balustrade at $170 to $520 a lineal metre, with $320 typical. The Quote Yard’s NSW balustrade guide (published August 2026, checked October 2026) splits it by material, supplied and installed:

Timber balustrade

$200–$450per metre

Wire balustrade

$300–$500per metre

Semi-frameless glass

$400–$700per metre

Stair handrail only

$150–$300per metre

For a national check, ServiceSeeking’s 2026 handrail and balustrade prices (August 2026), based on bids from tradespeople on its site, average $287 a metre.

These are broad estimates. They don’t know the height of your deck, the state of the frame or how the stair has to fit, so your price could sit well above or below them.

What makes one stair cost more than another?

• Height. A higher deck needs more steps, longer stringers and often a landing part way down.
• The fit. Every riser and tread in a flight has to match, within the limits the building code sets. Fitting that between two fixed levels sometimes means adding a landing or turning the stair.
• Open or boxed. An open stair of treads on stringers costs less than a boxed stair clad in decking boards to match the deck.
• Handrails and balustrade. A stair that needs a handrail or balustrade has it priced by the metre on top.
• What is already there. Replacing an old stair means taking it out first, and checking what it was fixed to.

At Lane Cove, we built a raised merbau deck across the back of the house with a boxed stair clad in merbau to match. At Wahroonga, the merbau stairs have a timber handrail and a wire balustrade.

Boxed merbau stair close-up between clad walls, Lane CoveMerbau stairs with timber handrail and wire balustrade from garden, Wahroonga

What makes one balustrade cost more than another?

• Length. Balustrades are priced by the metre, so a deck that wraps around a house costs more than a short balcony run.
• Material. Timber costs least, wire more, and glass the most.
• Posts and fixings. Every post has to be fixed solidly into the deck frame or the structure below, and a weak frame needs strengthening first.
• Height above the ground. A deck or landing more than a metre above the ground below needs a balustrade, and on much higher decks the rules also limit horizontal parts a child could climb.

Wire balustrades have one more cost to know about: tensioned wire stretches over time and needs re-tensioning to stay within the gap rules.

What if there is rot underneath?

Once old boards, treads or a balustrade come off, repairs can uncover more rot in the posts, bearers or stringers than anyone could see. We tell you before doing any extra work, and price it separately. Our guide to deck repair costs covers repairs to the frame.

How do you get a real figure?

Send us photos of the stair or deck edge and how high it is off the ground. We then check the framing, fixings and footings, and give you a written quote.

When you compare quotes, check they cover the same things:

• the timber for the stringers, treads and risers, and any cladding
• the balustrade material, the number of posts and how they are fixed
• handrails
• removal of the old stair or balustrade
• the finish, if it is timber.

Also check the builder’s licence on the NSW Government licence register. Timbaland Carpentry holds NSW Contractor Licence 276621C in the Carpenter class.