ZT Designs Defiant Marine

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ZT Designs Defiant Marine We are a full custom design and fabrication business based in Victoria, Australia.

Specializing in the fabrication of Stainless Steel and Aluminium components for the Marine, Transport, and Aerospace Industries.

This was an interesting exercise, Possibly a pointless one also but here is our new D23 overlaid with a very well know F...
02/10/2026

This was an interesting exercise, Possibly a pointless one also but here is our new D23 overlaid with a very well know Formula based 7.5m fiberglass hull model. I've never seen anything like this done before so thought we would share.

19/09/2026

Unit Bearing Axle run through video

Say goodbye to wheel bearing maintenance. 🛠️❌Our new custom trailer build option features Unit Bearing Hub Axles paired ...
17/09/2026

Say goodbye to wheel bearing maintenance. 🛠️❌

Our new custom trailer build option features Unit Bearing Hub Axles paired with 12" Stainless Rotors and Stainless Calipers. It is a completely sealed-for-life, maintenance-free system rated for a 1750kg axle load.This is the ultimate setup for salt water. (And yes, the big 2250kg axles are coming next!)Get in touch today to secure yours for your next build! 📲

The ultimate trailerable game boat layout is here. 🛥️🌊Take a look at the Defiant 23 General Arrangement and principal pa...
10/09/2026

The ultimate trailerable game boat layout is here. 🛥️🌊Take a look at the Defiant 23 General Arrangement and principal particulars. Every inch of this rig has been engineered from the keel up for serious game fishing, without sacrificing the convenience of a trailer boat. From cockpit space to long-range fuel capacity, we’ve dialed in the specs that matter when you're chasing pelagic's out wide. Check out the layout below—what’s the first feature you’re looking for in a hardcore trailerable weapon? 👇

Defiant 23 Enclosed Express update! 🚤💨She’s officially over 25 feet long (7.8m + engines) with a solid 2.7m beam. While ...
03/09/2026

Defiant 23 Enclosed Express update! 🚤💨She’s officially over 25 feet long (7.8m + engines) with a solid 2.7m beam. While everyone else seems to be worried that we cant build the bow flare, I’m over here losing sleep over the custom, one-piece curved front windscreen! 😅👀What do you think will be the bigger challenge? Let me know below! 👇

Production on the D20 is officially underway! To celebrate, we couldn't resist giving you a sneak peek at what’s next. H...
29/08/2026

Production on the D20 is officially underway! To celebrate, we couldn't resist giving you a sneak peek at what’s next. Here are some super early—and definitely not finished—renderings of the D23. What do you think so far? Drop your thoughts in the comments! 👇

Defiant 20 Build update: Drawings all finished ✅CNC Cut files generated ✅Parts all CNC cut ✅Let the Build Begin
23/08/2026

Defiant 20 Build update:
Drawings all finished ✅
CNC Cut files generated ✅
Parts all CNC cut ✅

Let the Build Begin

Innovation is in our DNA. Ten years ago, we were mastering stepped hulls. Today, we are taking aluminium hull design to ...
18/08/2026

Innovation is in our DNA.
Ten years ago, we were mastering stepped hulls. Today, we are taking aluminium hull design to the next level with our fully developed Carolina Flare.

Did you know we have been selling and installing Furuno electronics for almost 20 years? If you’re looking for a new sou...
07/08/2026

Did you know we have been selling and installing Furuno electronics for almost 20 years? If you’re looking for a new sounder and gps navigation package we can help.
This was a recent upgrade on a Barcrusher that was in desperate need of a decent sounder and new transducer location.

Address

10 Webb Drive
Wonthaggi, VIC
3995

Opening Hours

Monday 8am - 4pm
Tuesday 8am - 4pm
Wednesday 8am - 4pm
Thursday 8am - 4pm
Friday 8am - 4pm
Saturday 10am - 12pm

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