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Bruce Roberts Sailboat and Powerboat Designs 

& Boat Plans for the DIY Boat Builder


Bruce Roberts International — the original Bruce Roberts design office — began in 1968 in Queensland, Australia.

We remain based in Queensland, and in 2010 the company name was changed to Fine Line Boat Plans. 

Discover more about our history on Fine Line Boat Plans.

For over forty‑five years, the Bruce Roberts Group — with input from many designers, shipwrights, builders, and owners — has been producing detailed boat plans for sailboats and powerboats, with the DIY boat builder especially in mind. Our plans range from 5.8 m to 20 m and can be built in a wide variety of materials.

We offer designs for steel or aluminium construction in multichine, radius chine, or round bilge hull forms. Most plans are also available in fibreglass using c‑flex, foam sandwich, or single‑skin hull construction, as well as in cold‑moulded ply or strip plank using what is commonly known as wood‑epoxy boatbuilding. Thousands of Roberts designs have been built in backyards and successfully sailed around the world.

Our range of boat plans and designs includes the Roberts, Waverunner, Trader, Spray, Centennial Spray, Coastworker, New York, Adventurer, Tom Thumb, Henry Morgan, Offshore, PCF, Mauritius / Norfolk, Classic, Power Cat, Trawler Yacht, and the Longboat. Our archives contain nearly all the designs we have produced over the decades, so if you are restoring an older Roberts boat, it is very likely we still have the drawings you need.

The emphasis has always been on safety — and on giving builders the freedom to create the boat they truly want, not what a salesman tells them they need. Each Full Plan & Patterns set includes full‑size frame patterns, detailed construction drawings, and guidance on building your own tools, self‑steering vane, mast, trailers (for trailerable boats), and more.

Featured Boat Plans

Offshore 38 Boat Plan

Offshore 38 Boat Plan

Roberts Offshore 38 Full plans for this design are available for building in round bilge Fibergla..

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Centennial Spray 36 Boat Plan

Centennial Spray 36 Boat Plan

Roberts Centennial Spray 36 As there are over 1,000 Bruce Roberts’ SPRAYS being built worldwide, ..

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Roberts 58 Boat Plan

Roberts 58 Boat Plan

Roberts 58 The standard version of this design has a draft of 2.1 meters but this is a large vess..

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New York 46 Boat Plan

New York 46 Boat Plan

Roberts New York 46 The choice of keel types, combined with various draft options and alternate s..

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Coastworker 30 MK2 Boat Plan

Coastworker 30 MK2 Boat Plan

Roberts Coastworker 30 MK2 Powerboat This design is for steel or aluminium construction. It comes..

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Roberts 310 Boat Plan

Roberts 310 Boat Plan

Roberts 310 This design may be built with either a regular trunk cabin or a pilot house. It is al..

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Longboat 21 Boat Plan

Longboat 21 Boat Plan

Roberts Longboat 21 Designed by Barry Long in 1978 this design has stood the test of time. It is ..

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Roberts 53 Boat Plan

Roberts 53 Boat Plan

Roberts 53  There are currently well over 700 of this design in use worldwide, several in th..

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