How much does decking cost in Byron Bay?
Decking in Byron Bay costs $205–$400/sqm for treated pine, $345–$630/sqm for merbau hardwood, and $320–$630/sqm for composite decking (all supply and installation). A medium 25 sqm deck costs $9,200–$18,400 depending on the material and complexity.
Detailed Pricing — Byron Bay 2026
| Service | Low | Typical | High |
|---|---|---|---|
| Treated pine deck (per sqm) | $205/sqm | $300 | $400 |
| Hardwood deck — merbau (per sqm) | $345/sqm | $485 | $630 |
| Hardwood deck — spotted gum (per sqm) | $400/sqm | $550 | $690 |
| Composite deck (per sqm) | $320/sqm | $460 | $630 |
| Small deck (15 sqm, hardwood) | $5,750total | $8,600 | $11,500 |
| Medium deck (25 sqm, hardwood) | $9,200total | $13,800 | $18,400 |
| Large deck (40 sqm, hardwood) | $14,950total | $21,850 | $29,900 |
| Deck steps (per step) | $170/step | $290 | $460 |
| Deck balustrade / railing (per lm) | $140/lm | $230 | $400 |
| Deck sanding + oiling (per sqm) | $29/sqm | $46 | $69 |
| Old deck demolition + removal | $23/sqm | $40 | $63 |
| Pergola over deck (basic) | $5,750total | $9,200 | $17,250 |
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Get Byron Bay quotes →Prices include GST. Based on Byron Bay metro area, Mar 2026. Outer suburbs may vary.
Byron Bay’s Decking Market in 2026
Byron Bay’s outdoor living culture drives one of the busiest decking markets in Australia. From alfresco entertaining areas in the Byron hinterland to pool surrounds across the Byron hinterland and Sutherland Shire, timber and composite decking is a staple of Byron Bay home improvement. The city’s humid subtropical climate, strong UV, and termite pressure all influence material choice — and Byron Bay homeowners pay a premium compared to most other Australian cities, with labour rates typically 10–15% above the national average.
The biggest shift in Byron Bay’s decking market over the past few years is the move toward local hardwoods — particularly spotted gum and blackbutt. These NSW-native species are naturally durable (Class 1 above ground), termite-resistant, and often $50–$100/sqm cheaper than imported merbau because they’re sourced from local mills. Spotted gum in particular has become Byron Bay’s most popular premium decking timber, with its distinctive grain and warm colour that weathers to a silver-grey if left unoiled.
Composite decking (brands like NewTechWood, Modwood, and CleverDeck) continues to gain market share in Byron Bay, now accounting for roughly 30–40% of new deck builds. The higher upfront cost ($320–$630/sqm vs $205–$400 for treated pine) is offset by zero maintenance — no annual oiling, no sanding, no staining. For busy Byron Bay households, the lifetime cost calculation increasingly favours composite.
Council regulations vary across Byron Bay’s 33 councils. Most require a Complying Development Certificate (CDC) or Development Application (DA) for decks over 600mm above natural ground level, and heritage overlay areas in the Byron hinterland, Byron hinterland, and Byron Bay coast may restrict visible structures. Always check with your local council before building.
We’ve compiled pricing from Byron Bay deck builders, timber suppliers, and trade databases to give you the most accurate picture of decking costs in Byron Bay for 2026.
How Decking Costs Vary Across Byron Bay
Byron Bay coast & Inner City
Typical cost: $280–$650/sqm installed
Belongil, Randwick, Coogee, Suffolk Park, Mullumbimby. Premium labour rates and tight site access push costs 15–20% above the Byron Bay average. Terrace house backyards in Suffolk Park and Mullumbimby have narrow rear access — materials often need to be hand-carried through the house, adding $500–$1,500 to the job. Pool decking is common in the Byron Bay coast, requiring slip-resistant profiles and drainage consideration. Heritage Conservation Areas restrict visible structures — check before building anything visible from the street.
Byron hinterland
Typical cost: $250–$600/sqm installed
Marrickville, Bangalow, Balmain, Leichhardt, Dulwich Hill. The Byron hinterland deck market is dominated by rear courtyard and backyard entertaining areas in Victorian and Federation-era terraces. Access is the main cost driver — many properties have no rear lane access, and materials must be delivered through or over the house. Balmain and Rozelle’s steep streets and sandstone-block lots can complicate subframe engineering. Strong heritage controls across the Byron hinterland Council area apply to many properties.
Northern Beaches & Byron hinterland
Typical cost: $260–$640/sqm installed
Wategos, Dee Why, Tallowood Ridge, Neutral Bay, Pymble. Coastal properties on the Northern Beaches need to account for salt air corrosion of metal fixings — stainless steel fasteners are essential within 1km of the coast and add 10–15% to fixing costs. Many Byron hinterland and Beaches properties sit on steep, bush-adjoining blocks requiring elevated decks with substantial substructure (engineered posts, bracing, concrete piers). Bushfire-prone areas around Ku-ring-gai and Pittwater require BAL-rated materials.
Sutherland Shire & South Byron Bay
Typical cost: $230–$580/sqm installed
Cronulla, Miranda, Caringbah, Engadine, Hurstville. Popular for pool decking and alfresco areas. Parts of the Shire (Engadine, Heathcote, Bundeena) fall within bushfire-prone zones requiring BAL-rated decking. Sandy soils in coastal Shire areas provide good drainage but may need deeper concrete piers for elevated decks. Generally 5–10% more affordable than the Byron hinterland and Byron Bay coast due to better access and flatter blocks.
Western & South-Western Byron Bay
Typical cost: $205–$520/sqm installed
Penrith, Blacktown, Liverpool, Campbelltown, Camden. The most affordable area for decking in Greater Byron Bay. Predominantly newer homes on flat blocks with good rear access — ideal conditions for a straightforward build. Treated pine is the most popular choice in new estates where budgets are tighter. Western Byron Bay’s hotter summers (regularly 5–8°C warmer than the coast) make shade structures and pergola integration with decking increasingly popular. Competition among builders keeps rates below the metro average.
What You’ll Actually Pay — Common Byron Bay Decking Jobs
Here’s what typical decking jobs cost all-in across Byron Bay in 2026, including materials, labour, subframe, and council fees where applicable.
Ground-level entertaining deck — spotted gum, 20 sqm
$8,000–$14,000 total
The most popular deck build in Byron Bay’s middle-ring suburbs. Spotted gum decking boards ($280–$450/sqm supply and install), hardwood subframe on concrete piers, and basic finishing (sanding and two coats of decking oil). Ground-level decks (under 600mm) usually don’t need council approval. Spotted gum is naturally Class 1 durable and termite-resistant — it’s sourced from NSW mills and typically $50–$100/sqm cheaper than imported merbau in Byron Bay. Allow 3–5 days for construction.
Elevated deck with stairs and balustrade — hardwood, 25 sqm
$15,000–$28,000 total
Common on sloping blocks across the Byron hinterland, Sutherland Shire, and Northern Beaches. Includes engineered substructure with steel posts or substantial timber posts set in concrete piers ($3,000–$6,000), hardwood decking ($8,000–$14,000), stairs ($170–$460 per step), and code-compliant balustrades ($120–$350/lm). Decks over 1m above ground require engineering certification and a CDC or DA from your Byron Bay council. Stainless steel fixings are essential for coastal properties. Allow 1–2 weeks for construction.
Pool surround deck — composite, 30 sqm
$12,000–$22,000 total
Pool decking is one of Byron Bay’s most common deck jobs. Composite decking ($320–$630/sqm) is ideal around pools — it won’t splinter, doesn’t need oiling, handles chlorine splash without damage, and brands like Modwood and NewTechWood offer slip-resistant profiles specifically designed for pool surrounds. The subframe needs to be aluminium or treated to handle constant moisture exposure. Drainage away from the pool and house is critical — your builder should ensure a slight fall on the deck surface. Fencing compliance around the pool is a separate requirement.
Budget courtyard deck — treated pine, 12 sqm
$3,500–$6,000 total
A practical entry-level option popular in Byron hinterland terraces and apartments with small courtyards. H3-treated pine ($205–$400/sqm) on a simple subframe. Pine is the cheapest timber option but requires oiling 1–2 times per year to prevent greying and surface cracking — skip the maintenance and you’ll be looking at replacement within 10–12 years rather than the 15–20 year potential. In Byron Bay’s humid climate, ensure adequate ventilation under the deck to prevent moisture buildup and termite risk. H3 treatment is the minimum for above-ground use; H4 is required for any in-ground contact.
Deck restoration — sand, oil, and repair
$1,500–$4,500 total
Byron Bay’s UV and humidity degrade deck finishes faster than drier climates. A professional restoration includes sanding back to bare timber (removing grey weathering and old oil), replacing any damaged or split boards, tightening fixings, and applying 2–3 coats of quality decking oil. For a typical 20 sqm hardwood deck: sanding ($20–$40/sqm), board replacements ($50–$150 per board), and oiling ($29–$69/sqm). Most Byron Bay hardwood decks need a full restoration every 3–5 years if you want to maintain the original timber colour. If you’re happy with a silver-grey patina, an annual clean and light oil is sufficient.
What Affects Decking Costs in Byron Bay
Timber type
Treated pine ($205–$400/sqm) is cheapest but needs annual oiling in Byron Bay’s humid climate. Spotted gum ($280–$450/sqm) is the most popular premium choice in Byron Bay — it’s locally sourced from NSW mills, naturally Class 1 durable and termite-resistant, and typically $50–$100/sqm cheaper than imported merbau ($345–$630/sqm). Composite ($320–$630/sqm) costs more upfront but needs zero maintenance.
Deck size
A small 15 sqm deck in Byron Bay costs $5,750–$11,500. Medium 25 sqm is $9,200–$18,400. Large 40 sqm decks run $14,950–$29,900. Larger decks get slightly better per-sqm rates.
Height & subframe
Ground-level decks (under 600mm) in Byron Bay are simplest and usually don’t need council approval. Elevated decks over 1m need engineered substructure, concrete piers, bracing, and a CDC or DA — adding $3,000–$8,000 to the build. Sloping blocks on the Byron hinterland and Northern Beaches frequently need elevated builds with substantial steel or timber post systems.
Steps & balustrades
Steps cost $170–$460 per step in Byron Bay. Balustrades/railings add $120–$350/lm. These are required by code for any deck over 1m above ground.
Site access & slope
A flat backyard with rear access is cheapest. Byron hinterland and Byron Bay coast terraces often have no rear lane — materials must be hand-carried through the house, adding $500–$1,500. Sloping blocks (common on the Byron hinterland and Northern Beaches) need more subframe engineering. Western Byron Bay’s flat, accessible new estates are the most affordable sites to deck.
Maintenance requirements
Byron Bay’s humidity and UV degrade deck finishes faster than drier cities. Hardwood decks need oiling 1–2 times per year (DIY $50–$100 per session, professional $29–$69/sqm) and a full sand-and-reoil every 3–5 years. Composite needs almost no maintenance — a hose-down handles it. Over 10 years, composite’s lower maintenance often makes it cheaper than hardwood despite the higher upfront cost. Whether you're searching for composite decking price byron-bay or timber decking byron-bay price, the pricing above is based on verified 2026 data.
How to Save Money on Decking in Byron Bay
Frequently Asked Questions
Our Methodology
Prices on this page are compiled from publicly available cost guides, leading tradie marketplaces, peak industry body data, and individual tradesperson websites across Australia. We cross-reference ranges from multiple sources and adjust for city-specific cost differences based on advertised rates, salary data, and cost-of-living indicators. Our guides are independently produced — we don't employ tradespeople and have no commercial relationship with any service provider. All prices are estimates and will vary based on your specific job. Always get multiple quotes. Last reviewed May 2026. Read our full methodology →