The Excess 11 is a 37-foot fiberglass catamaran built for extended cruising and designed to balance comfort with performance. Two Yammer diesel engines of 58 hp each deliver a cruising speed of 6 knots with a maximum speed of 7.7 knots. The broad 21.6-foot beam creates an unusually spacious interior for a cat of this size, with accommodation for four cabins and two heads, making it one of the largest cruising catamarans at this scale.
The layout prioritizes living space and ease of movement. The owner's cabin features a 2-by-2-meter bed, and the bathrooms include separate shower stalls rather than compact en-suites. The saloon and cabin volumes are generous, reflecting the wide hull form. Topside, an open cockpit provides plenty of room for crew, with twin helm stations offering comfortable steering and direct visibility across the boat.
The design draws on proven cruising catamaran principles while keeping weight and complexity manageable. The boat is set up for serious offshore passages and extended time at anchor, with particular attention to seakeeping ability and livability. The combination of modest power, ample interior volume, and straightforward construction makes this a practical platform for blue-water sailing.
Length
37.17 FT
Beam
21.59 FT
Draft
3.74 FT
Material
Fiberglass
Shape
Catamaran
Cabins
4
Heads
2
Crew Cabins
1
Engines
2
Engine Make
Yanmar
Engine Model
3YM30
Power
2 x NaN HP
Fuel
Diesel
Cruising Speed
6.00 KTS
Max Speed
7.70 KTS
Fuel
53 GAL
Water
79 GAL