How much does a decking cost in Perth?
Most decking in Perth costs $5,250–$16,800
for a standard 15–25 sqm deck
A small 15 sqm hardwood deck in Perth costs $5,250–$10,500. A medium 25 sqm deck runs $8,400–$16,800. Per-sqm rates range from $190/sqm for treated pine to $580/sqm for composite.
+3.9%
Decking costs in Perth have risen this quarter, driven by strong construction activity and trade shortages.
Q1 2026 vs Q4 2025
Average Decking Cost in Perth
$126
per hour for standard residential work
Call-Out Fee
$63–$158
Emergency Rate
$263–$735
Common Job
$158–$420
Decking in Perth costs $190–$370/sqm for treated pine, $315–$580/sqm for merbau hardwood, and $295–$580/sqm for composite decking (all supply and installation). A medium 25 sqm deck costs $8,400–$16,800 depending on the material and complexity.
Detailed Pricing — Perth 2026
| Service | Low | Typical | High |
|---|---|---|---|
| Treated pine deck (per sqm) | $190/sqm | $275 | $370 |
| Hardwood deck — merbau (per sqm) | $315/sqm | $440 | $580 |
| Hardwood deck — spotted gum (per sqm) | $370/sqm | $505 | $630 |
| Composite deck (per sqm) | $295/sqm | $420 | $580 |
| Small deck (15 sqm, hardwood) | $5,250total | $7,900 | $10,500 |
| Medium deck (25 sqm, hardwood) | $8,400total | $12,600 | $16,800 |
| Large deck (40 sqm, hardwood) | $13,650total | $19,950 | $27,300 |
| Deck steps (per step) | $160/step | $260 | $420 |
| Deck balustrade / railing (per lm) | $125/lm | $210 | $370 |
| Deck sanding + oiling (per sqm) | $26/sqm | $42 | $63 |
| Old deck demolition + removal | $21/sqm | $37 | $58 |
| Pergola over deck (basic) | $5,250total | $8,400 | $15,750 |
Prices verified February 2026 · Cross-referenced against 90+ Australian trade pricing sources · See methodology
Prices include GST. Based on Perth metro area, Feb 2026. Outer suburbs may vary.