Decking in Hobart (2026)
Hobart's cold, sloping sites and island freight are what make a deck here its own kind of job.
| Decking boards (140mm hardwood) | 35 lengths | $1,663 |
| Joists | 15 | |
| Bearers | 4 | |
| Posts / footings | 10 | |
| Decking screws | ≈840 | |
| Substructure & fixings | $1,482 | |
| Installation labour | $3,840 |
or from $33/week over 5 years , indicative finance
How we estimate this
The number of decking boards depends on your deck area, board width and the gap between boards. This calculator allows ~10% for cutting waste and works out the supporting joists, bearers and posts as well.
Pricing reviewed: June 2026.
What a decking costs in Hobart
Sloping blocks are common around Hobart, so a great many decks are elevated structures on posts rather than ground-level platforms, and the taller the sub-frame the more engineering, bracing and labour the build carries. Island freight adds cost and lead time to composite boards and specialist timber shipped from the mainland, which a Hobart quote has to absorb, and the smaller trade market means less competition to sharpen prices.
The cool climate with genuinely cold winters cycles timber through damp and frost, so drainage, ventilation under the deck and a durable finishing schedule matter more than in a warm capital. Many homes are colonial or early-twentieth-century with heritage fabric, so tying a new deck to original weatherboard or brick calls for care that adds to the detailing rather than the headline.
Compare against the national picture: Decking in Australia →
Decking in other cities
Frequently asked questions
How many decking boards do I need?
It depends on the deck size, board width and gap. As a guide, 140mm boards with a 4mm gap cover about 7 lineal metres per square metre. The calculator works out the exact count plus waste.
How far apart should deck joists be?
Joists are commonly spaced 450mm apart for residential decks, closer for some composite boards. Always check the board manufacturer’s span requirements and Australian standards.
How much does decking cost per square metre?
Decking typically costs $200–$350 per square metre installed in 2026, depending on material. The calculator separates materials, substructure and labour.