boatbuildlog

Design

Acorn

Designed by Richard Woods

A 6.4 m (21 ft) minimalist trailable cruising catamaran by Richard Woods of Woods Designs. Hard-chine hulls in 4 mm plywood sides with 6 mm bottoms, bulkheads and decks, sheathed in glass and epoxy. Beam 3.8 m, about 400 kg empty, a single berth in each hull plus a boom tent. Daggerboards, rudders and spars can come from a large beach cat such as a Hobie 18, and rigs run from a cruising size up to a racing option.

A light, simple structure of about 20 sheets of plywood and 25 kg of epoxy. Woods publishes no hours for Acorn but puts his slightly larger Janus at 350 as a practised builder's minimum, so budget 400 to 700 as a rule of thumb. Measured medians from build logs appear below.

What building a Acorn actually takes

Medians from the build logs kept on this site, not the designer’s estimate. Nobody has logged this boat here yet, so they are empty until the first builder does.

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Build logs
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Launched
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Median hours
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Median months

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Builds of this boat

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Boats like this one

Same type, closest in length.

Design Plans from LOA Logs
Acorn 21 Bateau 21′ 0″ (6.4 m) 0
Cat 22 Bateau 21′ 6″ (6.55 m) 0
Janus Woods Designs 6.65 m (21′ 10″) 0
Janus 22' Full Bateau 21′ 10″ (6.65 m) 0
Saylon 20 Bateau 20′ 0″ (6.1 m) 0
Saylon 20 Woods Designs 6.1 m (20′ 0″) 0