Whanganui's mild climate and outdoor lifestyle make decks popular. The river city's heritage aesthetic suits natural timber decks that complement period homes. Here's what deck builders charge in Whanganui in 2026.
Whanganui Deck Costs 2026
| Service | Whanganui typical cost |
|---|---|
| Deck construction (per m²) | $1,500–$3,000/m² |
| Standard 20m² deck with balustrade | $15,000–$37,500 |
| Treated pine (entry-level) | $1,400–$2,400/m² |
| Hardwood (kwila, vitex) | $2,100–$3,800/m² |
| Composite (Trex, ModWood) | $2,400–$4,300/m² |
| Balustrade — glass (per m linear) | $580–$1,350/m |
| Deck stairs (per flight) | $1,700–$4,200 |
All prices GST inclusive. Broadly regional.
Whanganui Deck Market
Whanganui's mild climate and outdoor lifestyle make decks popular. The river city's heritage aesthetic suits natural timber decks that complement period homes.
Consent in Whanganui
Decks over 1m above ground, over 20m², or attached to the house require building consent from Manawatu-Whanganui Council. Ground-level decks under 20m² and under 1m are usually exempt — confirm with your deck builder before starting.
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Related: Deck Building Cost NZ | Pergola Builders Whanganui