---
title: "Composite vs Timber Decking Cost Comparison: Your Ultimate Australian Guide (AU 2026)"
description: "Compare composite vs timber decking costs in Australia for 2026. Explore material options, installation rates, and long-term maintenance values."
source: BackyardCost
sourceUrl: https://backyardcost.com/guides/composite-vs-timber-decking-cost
lastUpdated: 2026-06-06
citationUrl: https://backyardcost.com/guides/composite-vs-timber-decking-cost
---

# Composite vs Timber Decking Cost Comparison: Your Ultimate Australian Guide (AU 2026)

Compare composite vs timber decking costs in Australia for 2026. Explore material options, installation rates, and long-term maintenance values.

Compare composite vs timber decking costs in Australia for 2026. Explore material options, installation rates, and long-term maintenance values.

Quick Answer: In 2026, timber decking typically has a lower upfront material cost, ranging from $80 - $250 per square metre for boards, compared to composite decking at $120 - $450 per square metre. However, when factoring in installation, substructure, and crucial long-term maintenance, composite decking often presents a more competitive lifetime cost due to its minimal upkeep, while timber requires regular oiling/staining. Expect total installed costs to start from $250/sqm for basic treated pine up to $800+/sqm for premium composite or hardwood decks with complex designs.

Building a deck is one of the best landscaping projects in Australia to enhance outdoor living spaces, adding significant value and enjoyment to homes. But before you can relax with a cold one on your new outdoor oasis, you’re faced with a fundamental decision: composite or natural timber? This choice isn’t just about aesthetics; it’s a critical financial one, impacting your upfront budget, installation complexity, and long-term maintenance commitment. This costing methodology aligns with national industry benchmarks published by the Housing Industry Association (HIA).

Composite vs. Timber Decking: An Australian Cost Showdown for 2026

Natural timber offers unparalleled beauty and a classic Australian aesthetic. However, timber species vary greatly in price, durability, and required maintenance.

### Key Takeaways

### Material Costs: The Foundation of Your Decking Budget

#### Timber Decking Board Costs (Per Square Metre)

### James Thornton

#### Calculators

#### Resources

#### Compliance

## Key Points

- Upfront Material Costs: Timber generally has lower board costs per square metre than composite decking—see our guide on Spotted Gum and Merbau decking prices.
- Installation Costs: Labour rates are comparable for both, but composite often has slightly faster installation due to hidden fastening systems.
- Substructure is Key: The cost of bearers and joists (Treated Pine or steel) is a significant, often overlooked, component for both types of decks.
- Maintenance Matters: Timber requires ongoing oiling/staining every 1-2 years, adding significant long-term cost and effort. Composite decking is virtually maintenance-free.
- Lifetime Value: While composite has a higher initial outlay, its minimal maintenance often results in a lower total cost of ownership over 10-15 years.
- 🧮 Interactive Calculator
- 🌳 Garden & Turf Landscaping
- 🔨 Timber & Composite Decking
- 🧱 Patios, Pergolas & Paving
- 🪵 Timber Retaining Walls

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*Source: [BackyardCost](https://backyardcost.com/guides/composite-vs-timber-decking-cost)*