Feature Photo

Catamaran racing at Hamilton Island
Mad Max and Boatworks leading the fleet across the start line at Hamilton Island Race Week 2015

Multihull Designer, Tony Grainger
Tony Grainger

Art, imagination, science and technology. They're the elements that come together to create a modern sailing yacht. There's no science in bringing these factors together, that's all art, and that's what differentiates design work.


Grainger Designs was established in Australia by Tony Grainger in 1986. Driven by a passion for design and the joy of engagement with the ocean environment. 


I work with a small team of enthusiastic technicians and artisans. We focus on style, performance, technology and function to enhance the experience of those who build and sail the boats we design.


In 2018 our Sports Cats are at the pinnacle of racing performance in Australia, currently holding the trophy for Australian Multihull Championships (Ullman Sails) and line honors in the Brisbane to Gladstone Race (AYS Raider).


In 2018 we completely refresh our Raku range with new models and a host of design features that give our customers an exciting range of options in the arrangement, the build process and the equipping of the boat


In 2018 we seek out new manufacturing technologies, new design concepts, and ever closer engagement with our customers, with boat builders and with industry professionals around the world to achieve the best possible experience from conception, through construction, to the sailing of the boats we design.


If you're inspired by what we do press CONNECT and let's chat.


Tony Grainger


Photos of boats we've designed including a great range of shots from leading professional marine photographers

Here for the Gallery

Connect with the people, the products and the services that go into building and sailing a modern high performance multihull

Here for the Partners Network

Discussion of topics related to design, construction, technology and pretty much anything else that comes to mind.

Here for the LAB



We've created a gallery page to follow construction of the R42 trimaran by Australian Custom Multihull Yachts at BoatWorks on the Gold Coast.

 See the latest updates here.

We're heads down preparing costing and presentation information on the new range of Raku Cats. There is a lot yet to be done but we have some preliminary information up on the catamarans page.

Several builders have expressed interest in quoting to supply kits and finished boats. See the latest information here