Blow-Up Catamaran: What an Inflatable Catamaran Is and How to Choose One (Australia, 2026)
A plain-English guide to inflatable catamarans for Australian buyers — what they are, why a twin hull behaves differently to a monohull, how small and light you can go, and how to choose the right size without regretting it.
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Search Australia for "blow up catamaran", "small catamaran", "mini cat" or "lightest boats" and you will land on the same idea from four directions: a twin-hull inflatable light enough to carry, small enough to store in a garage, and stable enough to stand up in. This guide answers exactly those searches.
What is an inflatable catamaran?
An inflatable catamaran is a boat with two parallel inflatable hulls joined by a deck, with an open transom at the back instead of a closed pod. Water that comes over the stern drains straight back out. There is no bow cone, so the deck is a usable rectangle rather than a triangle.
How it differs from a normal inflatable
- Stability at rest. Two widely spaced hulls resist roll, so people can move around and stand to fish without the boat leaning.
- Shallow draft. Twin hulls sit high; you can nose onto sand and step off dry.
- Self-draining. The open transom clears water and fish slime without a bilge pump.
- Deck space. More usable floor for the same overall length than a monohull.
- Different feel in a following sea. A monohull or RIB still cuts a steep wind chop more sharply at speed.
Side-by-side detail: inflatable catamaran vs inflatable boat and catamaran vs monohull in Australian estuaries.
How to choose an inflatable catamaran
Start with how you launch
If you launch alone off a beach, weight and wheels matter more than length. If you always launch from a ramp with a mate, you can go bigger. Solo launching is covered in best inflatable catamaran for solo launching.
Then pick the size
| Length | Typical use | Aerowave model |
|---|---|---|
| 3.3 m | One or two adults, tender duty, tight storage | AeroCat 330 |
| 3.6 m | Two adults fishing, best all-round compromise | AeroCat 360 |
| 3.8 m | Two to three adults, more freeboard and load | AeroCat 380 |
| 4.0 m | Three to four adults, open bow, offshore-capable days | Viper 400 Sovereign |
Most people who regret a purchase went too small, not too big. If you are between two sizes and you fish with a mate, take the larger one. Detailed sizing: inflatable catamaran size guide.
Then check the spec, not the photo
- Fabric: ask for GSM and millimetres. Our AeroCat hulls are 1100 GSM / 0.9 mm VALMEX; the premium Viper hulls are 1500 GSM / 1.2 mm VALMEX Heavy Plus, rated at 10–12 years of Australian service.
- Seams: hot-air welded, not glued.
- Transom: grilled transom, 380 mm high, so a short-shaft outboard keeps its prop buried.
- Pressure: 8–10 PSI in the hulls is normal for this class. Pressure is what makes a twin hull feel rigid.
- Certification: all our catamarans are CE certified to ISO 6185-3 and EU Directive 2013/53/EU. That is separate from Australian state boat-code certification, which is your own step.
Are inflatable catamarans really the lightest boats?
For their usable deck area, yes — that is why "lightest boats" and "mini cat" searches keep landing here. A 3.3 m catamaran packs into a bag two people can carry to the sand, and one person can move on wheels. The comparison that matters is not against a kayak, it is against a tinny: a 3.6 m tinny needs a trailer, a registered tow vehicle and a ramp. A catamaran needs a ute tray or a garage corner. See inflatable catamaran vs tinny.
What does a blow-up catamaran cost in Australia?
Three bands in 2026:
- Around A$3,000 — generic imports, thin fabric, limited support.
- A$4,295 – A$6,970 — our current AeroCat and Viper packages, with welded seams, VALMEX fabric, real warranty and parts held in Australia.
- A$7,000+ — the same class of boat through a dealer network.
Every boat page shows the landed price, the finance calculator and the full inclusions list.
Setup, storage and first launch
- Setup: roughly 10 minutes with a 22 PSI electric pump, longer with the hand pump.
- Motor: 6–9.9 hp on a 3.3 m, 15 hp on a 3.6–3.8 m, 20 hp on a 4.0 m.
- Storage: rinse with fresh water, dry fully, roll loosely, keep out of direct sun.
- Conditions: learn to read the beach before you commit — reading beach conditions.
Shop gear featured in this guide
Aerowave WaveRunner 380 Series 3 Catamaran Package
The WaveRunner 380 Series 3 is a premium 3.8m inflatable catamaran package built for Australian and worldwide families, fishing, and coastal day boating — ideal for snorkeling and spearfishing — offering serious stability and premium German Valmex® construction.
Aerowave Viper 400 Sovereign
Flagship 4m enclosed-bow inflatable catamaran. German VALMEX® 7321 Heavy Plus 1.2mm commercial-grade fabric, 10 PSI high-pressure drop-stitch air deck floor with VALMEX non-slip surface, LockPro wheels, full Bimini and FREE express delivery Australia-wide delivery included. Winter special — save $1,000 until 31 August 2026.
AeroWave AeroCat 360 Inflatable Catamaran
Same proven hull design, shape and look as our flagship Aerowave Viper catamarans — built lighter using 0.9mm Valmex® fabric instead of the Viper's 1.2mm. The AeroWave AeroCat 360 is our 3.6m inflatable catamaran built from 0.9mm Valmex® fabric — intentionally lighter than our 1.2mm Viper hulls so it folds smaller, packs lighter and is easy to handle solo. Twin-hull stability, 5-Year Warranty with global support and priced ~$500 below comparable 0.9mm imports.
Not sure which suits you? Talk to a real boat owner.
Before you spend a cent
Buying from Australia, delivered to United States
You have never heard of us, we are on the other side of the world, and the internet is full of fakes. Fair enough. Here is everything you would need to check us out, in one place — no forms, no chat bot.
Australian designed business
Easy Inflatables, Avoca Beach NSW 2251. ABN 96 856 548 613. International orders ship from our Hong Kong hub.
222 owner reviews, 4.8 average
Read them in full, good and bad, on our reviews page.
CE certified, 7-year hull warranty
ISO 6185-3 and EU Directive 2013/53/EU. Warranty honoured worldwide.
Tracked, insured, door to door
Freight included on our supported lanes. Duty payable on arrival, stated up front.
- Who am I actually buying from?
- Easy Inflatables, Avoca Beach NSW 2251, Australia. ABN 96 856 548 613. Sean is the owner and skipper, Gary Stewart handles sales on +61 2 4335 1603, Karen Matthews handles email. The boats are Australian designed; international orders ship from our Hong Kong dispatch hub so your landed price stays competitive. Phone us before you pay a cent — a real person answers.
- Is this really an Australian product?
- Yes — Australian designed and engineered on the NSW Central Coast. Manufacturing is done offshore to our spec, and international orders ship direct from our Hong Kong dispatch hub. If we routed every boat through Australia first, the freight alone would roughly double or triple your cost for the same hull.
- What do I pay, and what is not included?
- The price you see is the boat with freight already included on our supported lanes. Import duty and local taxes are payable by you on arrival — we do not hide them inside the price, and we do not pretend they do not exist.
- How do I pay safely?
- Card through Stripe (Visa, Mastercard, Amex, Apple Pay, Google Pay) or bank transfer. Card payments carry your bank's own dispute protection. We never ask for crypto, gift cards or payment to a personal account.
- What if it arrives damaged?
- Every boat ships fully tracked and insured door to door. Photograph the carton and the boat on arrival and email us — transit damage is claimed and replaced through us, not left with you and the courier.
- Is the warranty real outside Australia?
- Yes. The 7-year hull warranty on 1.2 mm VALMEX Heavy Plus and Orca Hypalon hulls applies wherever you are. Replacement parts are held in Australia and at our overseas hub and go out by express courier to your door.
- Is the boat actually certified?
- All Aerowave catamarans are CE certified to ISO 6185-3 and EU Directive 2013/53/EU. Certification paperwork is supplied with the boat — ask and we will send it before you order.
Frequently asked questions
- What is an inflatable catamaran?
- A boat with two parallel inflatable hulls joined by a deck and an open transom at the stern. The twin hulls give stability at rest and shallow draft, and the open transom lets water drain straight out.
- How do I choose an inflatable catamaran?
- Start with how you launch and who is aboard, then pick the length: 3.3 m for one or two adults, 3.6 m as the all-round compromise, 3.8 m for two to three adults, and 4.0 m for three to four. Then check fabric GSM and millimetres, welded seams, transom height and hull pressure.
- Is a blow-up catamaran more stable than a normal inflatable?
- At rest, yes. Two widely spaced hulls resist roll, so you can stand and fish. A monohull or RIB still cuts a steep wind chop more sharply at speed.
- What is the smallest inflatable catamaran worth buying?
- 3.3 m is the practical floor for two adults with gear. Anything shorter starts behaving like a tender rather than a fishing platform.
- How heavy is a small inflatable catamaran and can one person launch it?
- A 3.3 m packs into a bag two people can carry, and one person can move it on wheels. Wheels, not raw weight, are what make solo beach launching realistic.
- What motor suits an inflatable catamaran?
- Roughly 6-9.9 hp on a 3.3 m, 15 hp on a 3.6-3.8 m and 20 hp on a 4.0 m. Our 380 mm grilled transom suits a short-shaft outboard and keeps more prop in the water.
- How much does an inflatable catamaran cost in Australia?
- Generic imports sit near A$3,000, our AeroCat and Viper packages run from A$4,295 to A$6,970, and dealer-network boats of the same class usually start above A$7,000.
- How long do the hulls last?
- Premium VALMEX fabric lasts 10-12 years in Australian conditions when the boat is rinsed, dried and stored out of direct sunlight.
Ready to set sail?
Premium German-fabric inflatable catamarans with express courier delivery included in the price — 7–10 days door-to-door. Talk to our team or browse the fleet.
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