Coast 34

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
Request A Sail Quote

The standard boat dimensions

i 45 ft
j 15.17 ft
p 42 ft
e 14.75 ft
p2 -
e2 -
i2 -
j2 -

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
Edit in Calculator

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
Edit in Calculator

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
Edit in Calculator

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
Edit in Calculator

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.

Comments

Portable hotknife

© 2025 Good Old Boat, Inc. All rights reserved