Coast 34
Description
The Coast 34 (also known as Roberts 341, Passage 34, Westcoast 35, or similar variants) is a Canadian fiberglass cruiser designed by Grahame Shannon (while working for the Bruce Roberts Design Group) and associated with Bruce Roberts. Introduced in 1980 (with roots in a 1978 Roberts 341 home-build design), it features a distinctive double-ender (canoe stern) hull inspired by mid-1970s Bob Perry-style designs, emphasizing seaworthiness, offshore capability, and liveaboard comfort. It was built semi-custom or production by various British Columbia yards, including Clearwater Marine (early/first builder), Cape Marine/Windward Marine Ltd., Marquis Marine, Randle Yachts, and others—over 50 hulls total, with some home-built or finished interiors by different shops. A pilot-house version was also available. Owners praise its "big boat feel" from high freeboard and generous beam, excellent storage (including a large cockpit locker), and proven bluewater performance—many have crossed oceans and are found in anchorages worldwide.
Construction Details
| Designer | Grahame Shannon |
|---|---|
| Builder | Clearwater Marine |
| Length | 34.000 ft |
| LOA | 34.330 ft |
| LWL | 28.670 ft |
| Beam | 11.480 ft |
| Displacement | 15750 lb |
| Ballast | 6500 lb |
| Max Draft | 5.500 ft |
| Year Built | 1980 |
The standard boat dimensions
| i | 45 ft |
|---|---|
| j | 15.17 ft |
| p | 42 ft |
| e | 14.75 ft |
| p2 | - |
| e2 | - |
| i2 | - |
| j2 | - |
| I | J | P | E | P2 | E2 | I2 | J2 |
|---|---|---|---|---|---|---|---|
| 45 ft | 15.17 ft | 42 ft | 14.75 ft | - | - | - | - |
Sails
Coast 34 - MAINSAIL
| Luff | * 42 ft - (12802 mm) |
|---|---|
| Foot | * 14.75 ft - (4496 mm) |
| Leech | * 43.75 ft - (13335 mm) |
| Tack Angle | * 88 ° |
| Diagonal | * 44.03 ft - (13420 mm) |
| Head (inches) | * 6 in - (152 mm) |
| Area | * 318.65 ft² |
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Coast 34 - JIBSAIL
| Luff | * 37.99 ft - (11579 mm) |
|---|---|
| Foot | * 20.27 ft - (6178 mm) |
| Leech | * 32.7 ft - (9967 mm) |
| Percentage LP | * 114.96 % |
| Length Perpendicular | * 17.44 ft - (5316 mm) |
| Deck Angle | * 12.01 ° |
| Area | * 331.29 ft² |
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Coast 34 - GENOA
| Luff | * 45.11 ft - (13750 mm) |
|---|---|
| Foot | * 24.65 ft - (7513 mm) |
| Leech | * 42.27 ft - (12884 mm) |
| Percentage LP | * 149.97 % |
| Length Perpendicular | * 22.75 ft - (6934 mm) |
| Deck Angle | * 4 ° |
| Area | * 513.17 ft² |
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Coast 34 - GENOA
| Luff | 44 ft - (13411 mm) |
|---|---|
| Foot | 21.33 ft - (6501 mm) |
| Leech | 41 ft - (12497 mm) |
| Percentage LP | * 130.19 % |
| Length Perpendicular | * 19.75 ft - (6020 mm) |
| Deck Angle | * 3.6 ° |
| Area | * 434.4 ft² |
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Coast 34 - ASYMMETRICAL
| Luff | 46 ft - (14021 mm) |
|---|---|
| Foot | 26 ft - (7925 mm) |
| Leech | 43 ft - (13106 mm) |
| Perc LP | * 165 % |
| Area | * 897 ft² |
| Edit in Calculator |
Disclaimer. Boats are not all the same -- even when produced in the same factory of the same model. Sailrite does its best to publish accurate dimensions, but we often find it worthwhile to have our customers measure their boats carefully before we produce kits for them. You should take the same precautions, especially when the data is not from Sailrite. The information on this site is not guaranteed to be accurate. Sailrite offers this content as a service to our community, but takes no responsibility for the reliability of the data provided.