Hull Construction and Design
Dufour built the 325 Grand Large with a hand-laminated GRP hull treated with a proprietary NPG gelcoat system — the first layer of cloth impregnated with NPG resin — forming what the builder describes as an optimum barrier against osmosis. The deck is a PVC foam-core sandwich produced by Resin Transfer Moulding injection, a process that yields significant weight savings and an excellent interior finish. An inner moulded hull bottom with a structural grid is laminated directly to the hull, contributing to the torsional stiffness the design depends on for offshore use. The hull's L/B ratio places it more spacious than most similar sailboat designs — a wide, beamy form that trades some pointing ability for the liveable interior that defines the Grand Large character. At just over 10,000 lbs displacement with a moderate displacement-to-length ratio, the 325 falls into what analysts classify as the moderate racer category, keeping performance honest without sacrificing sea kindliness.
Rig and Sailing Characteristics
The 325 carries a fractional rig with double swept-back spreaders, deck-stepped and rigged 9/10, an arrangement that shrinks the headsail and simplifies tacking — an advantage the builder and independent reviewers both note for cruising use. The rig is configured with a single-strand stainless-steel continuous standing rigging system, chrome-plated bronze turnbuckles, a furling genoa with UV protection, and a mainsail equipped with two broad reef bands. Independent analysis of the sail plan is telling: the 325 is significantly overrigged relative to similar sailboats, making it meaningfully over-canvassed by category standards. In light to moderate conditions that overrigging pays dividends; skippers need to be attentive to depowering in a breeze. Running downwind the fractional configuration invites a gennaker or spinnaker for optimal speed, and the deck layout accommodates that with a four-sheave organizer returning halyards aft to four clutches and a 32.2 ST halyard winch on the coachroof. Sheet loads are managed by two 32.2 ST genoa winches mounted on the coamings within easy reach of the helm.
Keel Options and Seakeeping
Dufour offered two keel variants on the 325 Grand Large. The deeper option, at roughly 1.85–1.95 m, is a cast iron L-shape bulb keel with bolt loads taken up by a stainless steel backing plate. A shoal-draft alternative provides approximately 1.55–1.65 m of draft, meaningfully expanding marina access. Both keels take the L-profile form, which resists fouling from seaweed, fishing nets, and lines. The iron construction draws occasional comparison with lead, though independent reviewers note that lead's advantage over iron is often overstated given iron's density. The boat holds a CE Class A ocean certification — designed for extended voyages where conditions may exceed Force 8 and significant wave heights of 4 m and above — though the capsize screening value of 2.05 sits at the boundary that traditionally excludes offshore race participation. The motion comfort ratio of 21.7 falls just below average for the category, which is the expected trade-off for a beamy, light-displacement hull.
Accommodations and Interior
The 325 Grand Large is fitted with six berths and a 160-liter fresh water capacity, generous provisioning for a 33-footer. Headroom is described as above average — a direct payoff of the wide, high-coachroof form. All joinery is worked in prime Moabi mahogany with fiddles, mouldings, and framings in solid wood, and cabin soles are Moabi laminated flooring. The upper cabin linings match in Moabi veneer. A sliding companionway hatch and washboards in Plexiglas with locking stops allow light into the saloon, which is further served by two deck hatches with integrated ventilators, four opening portlights on the coachroof, two hull portlights, and permanent ventilation through mushroom aerators. Natural light management throughout adds to the saloon's lightness. The cockpit feeds practical offshore needs: a gas locker in the aft port seat, life raft stowage in the starboard cockpit locker, a cockpit shower, and a transom that opens by removing the helmsman's seat to reveal a swimming and boarding platform.
Known Mechanical and Structural Considerations
The Volvo Penta 19 hp diesel driving a saildrive delivers a calculated maximum motoring speed of around 5.4 knots, sensible for a boat of this displacement. The 90-liter fuel tank provides adequate range under power for passagemaking legs. The saildrive configuration simplifies installation but carries the maintenance obligations common to all saildrive seals — diligent inspection of the bellows is standard practice on any used example. The iron keel, while structurally sound and heavier than often credited, does require careful monitoring for rust weeping at the keel-hull joint, particularly if keel-bolt tension has not been maintained. The stainless steel solid-stock semi-elliptical rudder filled with closed-cell epoxy foam is a durable choice, though stainless rudder stocks in any boat merit periodic inspection for crevice corrosion where the stock enters the hull bearing.
Refits and Upgrades
Owners looking to optimize the 325 for extended passages typically address the electrical system first: the standard fit is adequate for day sailing and weekend cruising but benefits from expanded battery bank capacity and solar or wind augmentation for longer offshore use. The fractional rig's performance potential means that worn running rigging is worth full replacement on any used boat — halyards, sheets, reefing lines, and the furling genoa all deserve inspection before passage work. The mainsheet tackle mounted on the coachroof is a useful arrangement but older boats may show wear in the traveler and block hardware. Below decks, the Moabi joinery ages well when kept dry; any evidence of persistent condensation or deck leak staining at chainplates or portlights warrants investigation before purchase, as water ingress into the foam-core deck sandwich is the structural concern most worth eliminating early.
The Verdict
The Dufour 325 Grand Large is a credible small offshore cruiser from one of France's most experienced production builders, carrying genuine Class A ocean credentials without demanding the crew complement or operating costs of a larger vessel. Felci's hull prioritizes interior volume and beam over pure pointing performance, and the significantly overcanvassed rig compensates — in the right conditions, this is a quick, lively boat. The quality of construction, from the NPG osmosis barrier to the solid Moabi joinery, reflects a builder working to a higher standard than pure coastal production. Buyers coming from smaller boats will appreciate the six-berth interior and above-average headroom; those stepping down from larger vessels will find the 325 spacious for its length.
Pros
- CE Class A ocean certification for genuine offshore credentialing
- Significantly overrigged relative to category peers, rewarding in light to moderate air
- Above-average interior volume and headroom for a 33-footer
- Quality NPG anti-osmosis hull treatment and RTM foam-core deck construction
- Dual keel options provide flexibility for shoal-water access
- Practical offshore cockpit details: life raft stowage, gas locker, boarding platform
Cons
- Motion comfort ratio below category average — a beamy hull in a seaway can feel lively
- Capsize screening value at the boundary for offshore race qualification
- Iron keel requires vigilant inspection for rust weeping at the hull joint
- Saildrive bellows demands rigorous maintenance discipline
- Fractional rig requires a downwind sail for efficient running in light air
- Ballast ratio lower than most similar designs, reducing ultimate righting moment
