How much does decking cost in Townsville?
Townsville people search for a deck builder far more than for a price, so here is what the builders charge. Supplied and built, treated pine is $195–$380 a square metre, merbau $325–$595 and standard composite $300–$755. A 25 sqm hardwood deck typically comes to $12,950, inside a band of $8,650–$17,300. One rule sets the city apart from the south-east of the state: it sits in Wind Region C, the cyclone region, so even a small deck needs building approval and a frame designed for cyclone winds. With 80.1% of dwellings separate houses (ABS 2021 Census), most decks here hang off a family home. Prices include GST.
Comparing cities, or after the Australia-wide picture? See the national guide: Decking cost in Australia.
Detailed Pricing — Decking Cost in Townsville 2026
| Service | Low | Typical | High |
|---|---|---|---|
| Treated pine deck (per sqm) | $195/sqm | $280 | $380 |
| Hardwood deck — merbau (per sqm) | $325/sqm | $455 | $595 |
| Hardwood deck — spotted gum (per sqm) | $380/sqm | $520 | $650 |
| Composite deck (per sqm) | $300/sqm | $595 | $755 |
| Small deck (15 sqm, hardwood) | $5,400total | $8,100 | $10,800 |
| Medium deck (25 sqm, hardwood) | $8,650total | $12,950 | $17,300 |
| Large deck (40 sqm, hardwood) | $14,050total | $20,500 | $28,100 |
| Deck steps (per step) | $195/step | $325 | $430 |
| Deck balustrade / railing (per lm) | $160/lm | $300 | $485 |
| Deck sanding + oiling (per sqm) | $27/sqm | $43 | $65 |
| Old deck demolition + removal | $22/sqm | $38 | $59 |
| Pergola over deck (basic timber or aluminium, about 4 x 4 m to 4 x 6 m) | $5,400total | $8,650 | $16,200 |
| Deck stairs (per flight, installed) | $1,075installed | $2,150 | $4,850 |
| Elevated / high-set deck surcharge (per sqm) | $54/sqm | $110 | $195 |
| Deck re-oil only (clean + 2 coats, no sanding, per sqm) | $16/sqm | $32 | $49 |
| Hardwood deck — blackbutt (per sqm) | $355/sqm | $485 | $670 |
| Composite deck — premium capped / solid-core, Trex class (per sqm) | $485/sqm | $615 | $970 |
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Get Townsville quotes →Prices include GST. Based on Townsville metro area, October 2026. Outer suburbs may vary.
Townsville decks: click-together and pool decking, a 25 m² deck by material, and the wet season
Click-together, modular and pool decking in Townsville
Our Townsville decking table has no rows for click-together or modular deck tiles, or for decking around a pool, so we don't publish prices for them. The nearest rows are composite decking at $300–$755 and treated pine at $195–$380 a square metre.
A 25 m² Townsville deck in merbau, spotted gum or composite
At the typical square-metre prices in our Townsville table, 25 square metres of deck comes to $11,375 in merbau, $13,000 in spotted gum and $14,875 in composite. Composite is the dearest of the three per square metre ($300–$755).
Townsville's wet season and a timber deck
More than three-quarters of Townsville's 1,162.3 mm of rain a year falls from December to March on Bureau of Meteorology averages; February is the wettest month (312.4 mm) and September the driest (9.9 mm). Re-oiling a timber deck without sanding is $16–$49 a square metre in our Townsville table.
These answers use the prices in the table on this page.
Local figures: Bureau of Meteorology climate statistics, TOWNSVILLE AERO, 1940–2026.
What Affects Decking Costs in Townsville
Boards that suit the tropics
Townsville is NCC climate zone 1, hot and humid, and average maximums stay above 31 °C from December to February (BOM averages). The lowest-priced board is pine, typically $280; blackbutt runs $355–$670 and spotted gum $380–$650. Premium capped composite reaches $485–$970; in dark colours it gets hot underfoot, so consider lighter shades.
No small-deck exemption here
Queensland lets some small class 10 structures, a low unroofed deck among them, skip building approval, but that exemption does not apply within Wind Region C. Townsville is in that region, where buildings should be designed to resist a Category 4 cyclone with gusts of about 250 km/h. Plan on a certifier, tie-downs and footings whatever the size, and if your home is in the Character residential zone or Cultural heritage overlay, Council planning approval may be needed as well.
Wet season, dry season
Rain here comes in a rush: February averages 312.4 mm at Townsville Aero, while September averages only 9.9 mm (BOM averages), and the official cyclone season stretches from November to April. Pour footings in the dry months if you can. Ask how the builder gaps the boards and ventilates the space underneath, because a deck soaked in a February storm needs to dry before mould and rot set in.
Raised floors and stairs
A deck built level with a raised floor carries a high-set loading of $54–$195 on each square metre. Stairs cost $1,075–$4,850 for a whole flight, and once the deck stands over 1 m high a balustrade is needed, at $160–$485 per lineal metre. Keep it near ground level, with two or three steps at $195–$430 apiece, and most of that falls away.
QBCC licence and deposits
Any deck job worth $3,300 or more needs a QBCC licence holder to build it, and residential work above it attracts the compulsory home warranty premium; every deck size in our table clears that line. A contract in the $3,301 to $19,999 range, the bracket a typical $12,950 falls in, can ask a deposit of no more than 10%; past $20,000, as the dearest large decks ($28,100) go, the limit is 5%.
Rentals and upkeep
Townsville has a high share of renters, 38.3% of dwellings against 33.1% across Queensland (ABS 2021 Census), and an owner building on a rental may weigh upkeep over looks. Composite skips the oiling. A hardwood deck needs a clean and two coats at $16–$49 while the finish holds, or sanding back and re-oiling at $27–$65 once it has worn through.
How to Save Money on Decking Cost in Townsville
Deck builders in Townsville: what they charge (2026)
Deck builders in Townsville charge by the square metre, supply and build: $195–$380/sqm for treated pine (typically $280), $325–$595/sqm for merbau (typically $455), $380–$650/sqm for spotted gum and $300–$755/sqm for composite. As whole jobs in hardwood that is $5,400–$10,800 for a small 15 sqm deck, $8,650–$17,300 for 25 sqm and $14,050–$28,100 for 40 sqm. Steps are $195–$430 each and balustrade $160–$485 per lineal metre. The figures are the Townsville table on this page, GST inclusive.
| Job | Low | Typical | High |
|---|---|---|---|
| Treated pine deck (per sqm) | $195 | $280 | $380 |
| Hardwood deck, merbau (per sqm) | $325 | $455 | $595 |
| Hardwood deck, spotted gum (per sqm) | $380 | $520 | $650 |
| Composite deck (per sqm) | $300 | $595 | $755 |
| Small deck, 15 sqm hardwood | $5,400 | $8,100 | $10,800 |
| Medium deck, 25 sqm hardwood | $8,650 | $12,950 | $17,300 |
| Large deck, 40 sqm hardwood | $14,050 | $20,500 | $28,100 |
What moves the quote:
- Cyclone region: decks in Townsville are built to wind loading, with tie-downs, heavier posts and footings; a builder who prices that in is quoting the deck you are allowed to build.
- Termites and moisture: the frame should be H3-treated or steel and kept off the ground with good airflow; the cheapest frame is the one you replace in five years.
- Height and approval: a deck more than a metre off the ground needs balustrade and usually council approval, and the engineering and certification are separate lines.
- Material: composite costs more per metre than pine but needs no oiling in the tropical sun; hardwood sits between them and wants a coat every year or two.
For deck builder quotes in Townsville that compare, give the size, the height off the ground, the timber or composite you want, and whether steps and balustrade are included; ask whether the quote covers footings, tie-downs, approval and certification.
Decking Cost in Townsville by Deck Size
A 20 square metre composite deck at $300–$755 a square metre comes to $6,000–$15,100, between the small deck at $5,400–$10,800 and the medium deck at $8,650–$17,300. Steps are $195–$430 each and a flight of stairs $1,075–$4,850.
What moves a deck of that size in Townsville: cyclone tie-downs and footings go under the whole deck, and more than three-quarters of the year's rain falls from December to March. Boards need gaps and ventilation underneath, dark composite gets hot underfoot, and a high-set floor adds $54–$195 per square metre.
Decking Cost in Townsville: What the Quote Should Include
Townsville's rain comes in a rush between December and March, and its decks are built for cyclone country. A decking quote there is clearer when the frame, tie-downs, ventilation and finish are each listed.
- The species of board, the timber in the subframe and the cyclone tie-downs each described, so one deck can be read against another like for like.
- Boards and rates: treated pine at $195–$380, merbau at $325–$595, blackbutt at $355–$670 or spotted gum at $380–$650 a square metre.
- A pergola at $5,400–$16,200 designed with the deck, so the tie-downs and footings work as one structure.
- Gaps between boards and ventilation under the deck described, since after a February storm the boards and the space beneath need to dry before mould and rot take hold.
- Premium capped composite at $485–$970 a square metre in a lighter shade, since dark colours get hot underfoot.
- Footings timed for the dry months, with the build placed between May and October rather than the wet season.
- Where the deck is on a rental, upkeep priced next to looks: sanding and oiling at $27–$65 per square metre and a re-oil at $16–$49 against composite at $300–$755.
- Tear-down and dump costs itemised apart, with removal at $22–$59 per square metre.
- Steps at $195–$430 each, stairs at $1,075–$4,850 a flight, balustrade at $160–$485 a lineal metre; warranty and GST in writing.
Frequently Asked Questions — Decking Cost in Townsville
Our Methodology
These are independent estimates from public cost guides, marketplaces and industry rate data, and no tradesperson can influence them, so always get a few quotes. Last reviewed October 2026. Read our full methodology →