Marström Composite AB
Marström M20

Appeared in 2001 the Marström M20 denotes of the productions of this time: compared to catamarans designed for Formula 18 rule she is longer, wider, lighter and with more sail area. Largely based on Class A design, she has a very high catboat rig and is built with premium materials. We can find carbon fiber from mast to snuffer through hulls, everything is geared towards performance without any strain of rules... or price.

Released in small series the Maström M20 thus offers some variations in equipment or even dimension as the width that has been increased up to 3.52m – 11.5ft for some copies. Today Marström M20 still race and some were even equipped with curved foils.

See the Marström M20's specifications on

Main Features

ShipyardMarström Composite AB
ModelMarström M20
Sailboat typeBeach catamaran
DesignerGöran Marström
Building years (first/last)2001 / 2005
CE regulationC-2
ConstructionSandwich Nomex/carbon fiber/epoxy
Appendage typeDaggerboards
Rudder bladeDouble transom hung rudders
RudderSingle tiller
Main dimensions
Hull length20.0 ft
Beam over all10.0 ft
Mast length34.4 ft
Light displacement254 lbs

Rig and sails

Rig typeCat Boat
Rig materialMast and boom in Carbon fiber
Spinnaker typeAssymmetrical spinnaker on bowsprit
Upwind sailarea237 ft²
Downwind sailarea474 ft²
Mainsail area237 ft²
Spinnaker area237 ft²


Upwind sailarea / displacement2059.1 ft²/Ton
Downwind sailarea / displacement4118.4 ft²/Ton
Trapezes2 set(s)

D-PND-PN is a variation of Portsmouth Yardstick used in the United States.


Auxiliary engine

BrandNo engine

Based on specification2002

Website :

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