The Marieholm Seacat 16 represents a specific niche in the Swedish builder’s history, functioning as the entry-level gateway to the world of robust, long-keel cruising. Designed by the prolific Per Brohäll—the same naval architect responsible for the legendary Albin Vega—the Seacat 16 was introduced in the early 1970s as a "pocket cruiser" that prioritized safety and stability over raw racing speed. Built by Marieholm Bruk in Småland, the boat features the signature fiberglass lapstrake (clinker) hull aesthetic that defines the Marieholm family, mirroring the visual language of the larger International Folkboat (IF-boat). Despite its diminutive 16-foot (4.88-meter) length, the Seacat 16 was engineered as a genuine yacht in miniature, featuring a ballasted keel and a fully enclosed cabin, separating it from the open dinghies of its era.
Marieholm Seacat 16 Information, Review, Specs

- Make
- Marieholm
- Model
- Seacat 16
- Builder
- Marieholm Boats
- Designer
- Pelle Petterson
- Number Built
- 500
- Production Year(s)
- 1966 - 1973
Sailing Performance & Handling
The Seacat 16 is characterized by its remarkable stability, a trait inherited from its heavy-displacement Swedish lineage. With a displacement of approximately 500kg and a significant portion of that weight dedicated to its internal ballast, the boat handles like a much larger vessel. Unlike modern light-displacement 16-footers that plane on the surface, the Seacat "sits" in the water, providing a sense of security in choppy coastal conditions. The fractional sloop rig is manageable for solo sailors, though the boat is known to be somewhat "tender" until it reaches its initial heel, after which the hull shape provides substantial secondary stability.
The boat's tracking is exceptionally straight due to its long-keel configuration, making it a forgiving platform for beginners. However, this design comes with a trade-off in maneuverability; as noted in historical technical overviews provided by the Marieholm Vereniging Nederland, the long keel makes it less responsive in tight quarters compared to a fin-keel boat. In light air, the Seacat 16 can feel sluggish due to its wetted surface area, but it shines when the breeze picks up, remaining balanced and dry when smaller dinghies are forced to head for shore.
Interior Comfort & Variations
While the interior of a 16-foot boat is inherently limited, the Seacat 16 is famous for its "four-berth" claim—a feat of Swedish spatial engineering. The cabin features two full-length berths under the cockpit seats and a V-berth forward. In practice, the cabin is best suited for two adults or a small family with children for weekend "camping-style" cruising. The headroom is restricted, requiring seated posture at all times, but the inclusion of high-quality wood trim and organized storage lockers reflects Marieholm's commitment to craftsmanship.
The Seacat 16 saw very few structural variations during its production run, though it is often discussed alongside its larger sibling, the Marieholm S20. According to historical brochures archived by the Swedish Digitalt Museum, the Seacat was marketed as a trailerable alternative for those who found the Marieholm 20 or the IF-boat too cumbersome for home storage. The cockpit is deep and protected, providing a sense of safety that is rare in boats of this size class.
Known Issues & Buyer’s Checklist
Prospective buyers of a Seacat 16 should focus on the integrity of the fiberglass-encapsulated ballast. While the hulls are notoriously thick, moisture can occasionally seep into the bilge area if the keel has suffered "hard grounding" impacts over the decades.
A critical inspection point is the deck-to-hull joint, which is covered by a substantial rub rail; check for leaks that manifest as water stains inside the cabin carpeting or liner. The rudder assembly and its pintles are also high-wear items; given the age of these vessels, the bushings often require replacement to eliminate "play" in the helm. Lastly, because many Seacat 16s were used as trailer-sailers, the mast step and tabernacle should be checked for stress fractures or compression, as frequent stepping and unstepping of the rig can fatigue the mounting hardware.
Community & Resources
The Seacat 16 enjoys a "cult classic" status within Northern Europe. The most prominent resource for technical data and restoration advice is the Marieholm Vereniging Nederland, an association dedicated to the preservation of all Marieholm models. In Sweden, the boat is often discussed within general Swedish Boat Union (Svenska Båtunionen) circles, where it is remembered as a pivotal design that introduced many families to overnight cruising.
The Verdict
The Marieholm Seacat 16 is an ideal choice for the sailor who values traditional aesthetics and seaworthiness over modern speed. It is a "big small boat" that offers the dignity of a classic yacht in a package that can be towed behind a standard family car.
Pros:
- Exceptional stability and sea-kindliness for a 16-foot hull.
- Classic Swedish "lapstrake" styling and robust fiberglass construction.
- Easily trailerable, allowing for diverse cruising grounds.
- Enclosed cabin provides genuine weekend overnight capability.
Cons:
- Lacks the agility and light-wind performance of modern dinghies.
- Interior space is extremely cramped for four adults despite the berth count.
- Maneuvering in reverse can be difficult due to the long-keel design.
Measurements
Construction & Hull
- Construction Material
- Fiberglass
- Hull Type
- Monohull Sailboat
- Keel Type
- Fin
- Rudder
- 1x Skeg-Hung
- Ballast
- -
- Displacement
- 1984 lbs
- Water Capacity
- -
- Fuel Capacity
- -
Dimensions
- Length Overall (LOA)
- 20.83 ft
- Waterline Length (LWL)
- 18.54 ft
- Beam
- 6.4 ft
- Draft
- 3.61 ft
- Max Headroom
- -
- Air Draft
- -
Rig & Sails
- Rig Type
- Fractional Sloop
- P (Main Luff)
- -
- E (Main Foot)
- -
- I (Foretriangle Height)
- -
- J (Foretriangle Base)
- -
- Forestay Length (est)
- -
- Sail Area
- -
Calculations
- Sail Area / Displacement (SA/D) Ratio
- —
- Ballast / Displacement Ratio
- —
- Displacement / Length Ratio (D/L) Ratio
- 138.98
- Comfort Ratio
- 13.44
- Capsize Screening Formula
- 2.04
- Hull Speed
- 5.77 kn