Three real Sunshine Coast decking quotes — what homeowners actually paid
Getting decking quotes is the easy bit. Knowing whether they’re fair is harder. Here are three real Sunshine Coast quotes from 2026, line-itemised, with the context behind each — a Noosa hardwood family deck, a Buderim composite repaint, and a Caloundra pool deck.
Quick answer — three real Sunshine Coast decking quotes — what homeowners actually paid
| Quote | Final price paid |
|---|---|
| Quote 1 — Noosa beachfront 32m² hardwood deck | $13,200 |
| Quote 2 — Buderim 40m² composite deck replacement | $15,400 |
| Quote 3 — Caloundra 48m² pool deck (hardwood + bullnose coping) | $26,800 |
The three quotes — context and breakdown
Quote 1: Noosa beachfront 32m² spotted gum deck — $13,200
Context: 2010-built single-storey Noosa home, 800m from Noosa Main Beach. Owner wanted a new deck across the rear garden replacing a tired 15-year-old merbau deck. Three builders quoted; this is the middle quote, which won. The lower quote ($10,800) excluded the existing deck removal (would have variation’d). The higher ($16,500) used a premium hardwood (Cumaru) and 3-coat marine oil system. The mid-quote used spotted gum, marine 316 fixings, and a 2-coat marine UV oil system — well-balanced for the site.
Quote 2: Buderim 40m² Modwood Xtreme deck replacement — $15,400
Context: 2005-built Buderim hillside home, mid-set elevated deck, owner replacing original treated-pine deck that had reached end of life. Wanted low-maintenance composite, dark colour for low-glare. Two builders quoted; the lower ($15,400) used Modwood Xtreme Dark Slate; the higher ($18,200) used Trex Transcend. Both included full substructure replacement (the existing treated pine needed full rebuild). The Modwood quote won on price and matched warranty terms.
Quote 3: Caloundra 48m² pool deck with bullnose coping — $26,800
Context: 1998-built Caloundra family home, owner removing a tired tile pool surround and installing a hardwood deck with bullnose coping. Standard 8m × 4m pool with 3m wide deck around. Three builders quoted; this is the recommended specialist (mid-price). The lower ($21,400) used flush coping and no slip-rated inner zone (would have failed pool inspection). The higher ($31,500) included a full pool barrier rebuild that wasn’t needed. The mid quote nailed scope: spotted gum boards, slip-rated 1.5m inner zone, full bullnose coping, marine fixings, and council compliance sign-off.
Quote 3 itemised — the Caloundra pool deck
| Item | Cost |
|---|---|
| Existing tile pool surround removal + cartage | $1,800 |
| Treated pine raised substructure (48m² + drainage gap) | $3,400 |
| Spotted gum boards — 48m² with ribbed slip-rated inner 1.5m zone | $7,600 |
| Bullnose pool coping (24 lin m, hand-shaped spotted gum) | $11,200 |
| 316 marine-grade stainless screws + hangers | $560 |
| Joist tape + waterproof membrane | $340 |
| Pool-edge sealant + flexible expansion joint | $720 |
| Installation labour (4.5 days, 2-person team) | $4,800 |
| Initial oil treatment + pool-zone sealant | $640 |
| Council pool barrier inspection + sign-off | $320 |
| TOTAL (before negotiation) | $31,420 |
| Final (early-payment + cash discount) | $26,800 |
Frequently asked questions
Why is there such a wide range between Sunshine Coast decking quotes?
Three reasons. (1) Scope interpretation — some quotes include substructure replacement, others assume reuse. (2) Material spec — spotted gum vs merbau vs blackbutt all carry different costs and quality. (3) Pool/coastal specs — marine fixings and slip rating can sit in or out of scope. Always line-itemise.
Should I always go with the middle quote on Sunshine Coast deck jobs?
Statistically yes — middle quotes tend to be accurate and inclusive. But verify line items match across all three. The middle quote on scope A and lowest on scope B is the right answer if you know exactly what you need.
How do I check a Sunshine Coast deck builder is licensed?
Queensland Building and Construction Commission (QBCC) requires a licence for any deck job above $3,300. Search the builder’s name or business at qbcc.qld.gov.au — licence number, status, and any past complaints are public. Always required.
What’s a "variation" on a deck quote and how do I avoid them?
A variation is additional work added after the contract is signed — usually because the builder discovered something not in the original scope (rotted substructure, footing issues, pool compliance gaps). To minimise: get a line-itemised quote, ask the builder to walk the site with you, and ask "what could change once you start?" — good builders flag risks upfront.
Can I negotiate Sunshine Coast decking quotes?
Yes — typical successful negotiations are 5–12% off the original quote, usually for cash settlement, single-payment, or low-season scheduling (May–August). Don’t push for 20%+ off — that compromises build quality.
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