Decking, Other AU metros
Decking quote in Cairns.
A rough guide for Cairns is about $9,100 for a 4×6m hardwood deck supplied + installed inc GST, with most estimates between $6,050 and $14,700. Every job is different. These are estimates: regional prices adjusted a little for local house prices, not quotes from local tradies. Tradies, quote your deck jobs in Karven from your phone.
Estimated range
Estimate
What it covers
for a 4×6m hardwood deck supplied + installed inc GST
Cairns, on the ground
Decking in Cairns: a rough guide.
Estimates for typical Other AU metros jobs, including GST, supplied and installed. Your job could land anywhere on this range, or outside it.
- 01
A rough guide for Cairns is about $9,100 for a 4×6m hardwood deck installed, including merbau boards, joists, fixings and a sealant coat. Every job is different.
- 02
Substructure on a sloped Cairns block adds $1,500 to $4,000 depending on stump depth and bearer span.
- 03
Composite boards (Modwood, Trex) push the materials cost up around 35% but knock 20 to 30% off the sealing labour over the deck's lifetime.
- 04
Stairs are usually quoted per riser, not per metre. Budget $180 to $300 a riser including the stringer and treads.
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Cairns questions
Decking prices in Cairns.
Quick answers on what decks might cost in Cairns. These are estimates, not quotes.
How much does a deck cost in Cairns?
A rough guide for Cairns is about $9,100, with most estimates between $6,050 and $14,700. It covers a 4×6m hardwood deck supplied + installed inc GST. It's an estimate from regional prices, not local quote data. Every job is different. Larger spans, premium finishes and hard access push you toward the top end; straightforward swaps and standard specs sit near the bottom.
What affects the decks price in Cairns?
Five things move the number most: scope (size, span, thickness), material grade, site access (driveway, levels, parking for a truck), labour rate set by the crew you pick, and any compliance work specific to the Other AU metros council.
Are these prices including GST?
Yes. Every figure on this page is GST-inclusive, supplied and installed. A written quote from a GST-registered tradie should show the total including GST.
How quickly can I get a written quote for a deck in Cairns?
Most tradies can give you a written quote within a few days of seeing the job.
Do Cairns decks need council approval?
Decks under 1m above ground generally don't need council approval in QLD, but pool-adjacent decks, decks attached to heritage stock, or anything over 25m² with structural changes usually do. If a permit or compliance check is needed, ask for it to be listed on the quote, so there are no surprise costs after the job starts.
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