Dufour 405 Page 2


The 405 has a traditional “woody” interior, which is offered with either one or two aft cabins. The former has an L-shaped galley aft and a chart/coffee table between two saloon seats, with access on both sides. The latter has a linear galley and a separate nav station with a forward-facing chart table and seat. Both layouts have two heads and an ensuite forecabin.

A large fridge, accessible from the top or front, creates a sturdy surface for the cook to lean against in both layouts. Both plans are also well-equipped with good lighting and have plenty of useful stowage space. The aft head is slightly narrower than the forward one, but there still is room to shower. Both are well ventilated with ample stowage and foul weather gear.

The U-shaped settee in the saloon has washable leatherette cushions and a two-man bench seat inboard. The deep lockers and bookshelf above them are ideal for long-term cruising, and there is further stowage space under the cushions and in cave lockers behind the settees.

Although the saloon has plenty of natural light, ventilation is limited to one small port and two hatches. Headroom is a generous 6ft 5in throughout the saloon, aft cabins and heads, dropping to 6ft 2in forward.

The aft cabins are roomy, with 6ft 7in x 4ft 6in berths and generous floor space. Three opening hatches/portlights offer good ventilation, and there is plenty of stowage space in several lockers. A panel above one berth gives access to the batteries and charger, and an optional 2.5kW generator. Water and fuel tanks are underneath the berths.

Cabin sizes are identical. If you opt for only one aft cabin, you end up with a vast cockpit locker, part of which might make a small workshop.

The 405’s 40hp Volvo engine is easily accessed for servicing. We carried out several tight marina berthing and turning maneuvers to get the feel of the boat under power. She spun round in her own length and was easy to control going astern. Our boat had the optional 55hp engine and a folding 2-blade prop, which gave us power to spare and a quiet, economic cruising speed of 7.5 knots at 2,400 rpm, with a flat-out speed of 8.5 knots at 3,000 rpm.


The Dufour 405 is well organized, both above and below decks and is easy to handle under sail. A lot of thought has been put into the basic and essential elements of cruising under sail, so she rightly deserves to be popular with coastal and offshore cruisers alike.


39ft 9in


34ft 10in



Draft (board up/down)

5ft 9in/6ft 7in


19,819 lbs


5,150 lbs

Sail area (100% foretriangle)

881 sq ft


40hp Volvo Penta diesel


52/100/12 gall

Sail area-displ. ratio

19.32 (moderate)

Displ.-length ratio

212 (moderate)