Deck
An ultra strong, lightweight aluminium deck, floor, landing or platform, delivered flat-packed to your door. Pre-drilled and ready to assemble in an afternoon with a drill.
Features
- 01Pre-drilled in the factory, so it is assembled, not built. No saw on site.
- 02Aluminium never rots, rusts, burns or feeds termites.
- 03One system for decks, floors, landings and spa platforms, rated to 4.0 kilopascals.
Decks, floors, landings and platforms
Decks
Outdoor living
A sub 100 millimetre build height keeps the threshold at your back door where it is, with no step and no ramp.
Floors
Dead flat
A level floor over an uneven slab, garage, shed or studio. Adjustable pedestals absorb the fall.
Landings
Entries and steps
Small footprint, level within minutes, and no formwork, concrete or waiting.
Platforms
Spas and cabins
Rated to 4.0 kilopascals, bolted together into any rectangle, and unbolted again when the site changes.

Sizes and prices
Every kit ships complete: frame, composite boards, clips, trim and every screw, counted. Australian made, 10-year warranty, returns in 30 days. Prices in Australian dollars including GST; freight is calculated at checkout by weight. A 6 × 3 metre deck is two Large kits bolted together.
Test results
| Test | Result |
|---|---|
| Four-point bend, peak load | 24.02 kilonewtons |
| Deck application, 4.0 kilopascal design live load | 1,800 kilograms over 2 square metres for 10 minutes |
| Fire, heat evolved index | 4 or less |
| Fire, spread of flame index | 5 or less |
| Slip resistance, oil-wet inclining platform | R10 |
| Termite attack | Not a food |
Designed to AS 1170 Structural Design Actions and AS 1664.1 Aluminium Structures, tested at an accredited laboratory. Full test certificates available on request.
Specification
| Yield strength | 250 megapascals |
| Ultimate tensile strength | 300 megapascals |
| Profile | 55 × 45 millimetres, bearer and joist in one |
| Mass | Under 3 kilograms per metre |
| Joist, maximum single span | 2,000 millimetres |
| Joist spacing, maximum | 450 millimetres |
| Bearer, maximum span between stumps | 900 millimetres |
| Extrusion lengths | 3,600, 4,200, 5,400 and 6,000 millimetres |
Permits and approvals
Terraform Deck sits under 100 millimetres off the ground, which in most states is well below the height at which a deck needs a building permit. Rules vary, and your local council has the final say. It is the installer's responsibility to meet local codes and obtain any permits.
| New South Wales | NSW Planning Portal, exempt development |
| Victoria | Building and Plumbing Commission |
| Queensland | Queensland Building and Construction Commission, building approvals |
| South Australia | PlanSA, do you need approval |
| Western Australia | Building and Energy WA |
| Tasmania | Consumer, Building and Occupational Services, categories of work |
| Australian Capital Territory | ACT Planning, do you need building approval |
| Northern Territory | NT.GOV.AU, work that requires permits |
| National | National Construction Code |
Questions
How long does it take to build?
Four to eight hours, depending on the size and how many people are on it. One person can build a Small on their own. Two is quicker and more comfortable for the Large.
Do I need a builder?
No. Every part is pre-cut, pre-drilled and labelled, and the kit ships with printed instructions. If you would rather not, any builder will have it done in half a day.
What tools do I need?
An 18 volt drill, a hammer, a tape measure, gloves, and eye and ear protection. No saw, because nothing needs cutting.
Will it hold an outdoor setting?
Yes. The frame is designed to a 4.0 kilopascal live load, roughly 400 kilograms per square metre. In test it held 1,800 kilograms over 2 square metres for ten minutes.
How long will it last?
The aluminium frame lasts a lifetime. It does not rot, rust, warp or feed anything. The warranty is ten years. Boards are a wear item and can be replaced without touching the frame.
Do I need a permit?
Usually not at this height, but it depends on your council, the location and what is around it. Start with the state links above and confirm with your council. Footings should be designed and certified by a civil engineer.
Can I get a custom size?
No, and that is deliberate. Fixed sizes keep the parts identical and the price down. The three footprints bolt together, so a 6 × 3 metre deck is two Larges.
Which boards come with it?
Composite boards with recycled content, cut to length, with the clips and edge trim to fix them. If you would rather lay your own hardwood, the bracket spacing suits standard board fixings.
Can it go against steel?
Only if the steel is galvanised or powder coated. Bare steel against aluminium corrodes. Every screw in the kit is galvanised for that reason.