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Catamaran Comparison · 2026

Lagoon 40 vs Lagoon 50

Two near-neighbours in the 40–50 foot class — here's how they actually differ on the water.

At a Glance

Lagoon
Lagoon 40

The Lagoon 40 is a 40-foot 3-cabin catamaran launched in 2018. Best for couples, small family. A balanced cruiser that does many things well.

Lagoon
Lagoon 50

The Lagoon 50 is a 50-foot 4-cabin catamaran launched in 2018. Best for family, large group, mixed adults. A proven family-friendly layout.

Quick Comparison

Spec Lagoon 40 Lagoon 50
Length overall 40 ft (11.97 m) 50 ft (14.76 m)
Beam 6.78 m 8.1 m
Cabins (guest + crew) 3 + 1 4 + 2
Max guests 6 8
Year introduced 2018 2018
Best for couples, small family family, large group, mixed adults
Standout amenity AC, generator AC, generator
Charter regions Caribbean, Mediterranean, Mexico & Central America, Red Sea & Middle East, Northern Europe & Baltic, US East Coast & Florida Caribbean, Mediterranean, Indian Ocean, South East Asia, Atlantic & Offshore, Red Sea & Middle East, South America & Galápagos
Indicative price (bareboat low season) $8,000 $8,500
Indicative price (crewed peak season) $26,000 $45,000
View full detail View → View →

Pricing data drawn from current-season bookings across BVI and Mediterranean bases. Updated quarterly.

Design & Comfort Differences

The two boats feel meaningfully different on board, even within the same nominal size class. Three specific differences worth knowing:

  1. Saloon and deck space. The Lagoon 40 has a classic enclosed saloon with a wide aft deck; the Lagoon 50 offers a more conventional enclosed saloon.
  2. Cabin configuration. Both boats offer 3 (Lagoon 40) vs 4 (Lagoon 50) guest cabins. If you need 4 equal cabins for a multi-couple charter, the Lagoon 50 is the better fit. Otherwise they're both fine for a single-family layout.
  3. Amenities & kit. Lagoon 40 comes with AC, generator, watermaker, dinghy. Lagoon 50 adds solar, bow thruster, ice maker. The Lagoon 50 has a bow thruster — easier docking in tight Med slips.

Performance Differences

Neither boat is a racer; both are cruising catamarans. But the neither — these are cruising-first boats.

In light air (under 10 knots true wind), the heavier-displacement boat will feel slightly sluggish; in 15–20 knots trade-wind conditions both perform similarly. In big Med Meltemi/Mistral conditions (25+ knots) the Lagoon 50's wider 8.1 m beam will initially feel more stable but pushes more water resistance.

For bareboat charters both behave predictably under sail and under power. We rarely see either one out-sail the other in normal charter conditions.

Price & Value

In current-season data, the Lagoon 40 starts at $8,000/week bareboat (low season, BVI or Greece) and the Lagoon 50 starts at $8,500/week. At the high end (crewed, peak season) we see the Lagoon 40 reach $26,000/week and the Lagoon 50 reach $45,000/week.

For most charterers the price difference is small (~$500–$1,500/week) compared to the total trip cost — meaning amenities, layout and your destination matter more than sticker price when choosing between two boats this similar.

Which Should You Choose?

If you're a family with kids

Choose the Lagoon 50. It's the calmer, family-oriented platform; the layout is forgiving for first-time charterers with kids aboard.

If you want performance / a sailing-feel boat

Neither boat is a true performance catamaran; both are cruiser-first. If sailing feel matters most, look at the Excess 14 or Nautitech 46 Open as alternatives.

If you want luxury / open-space

Both are mainstream cruising layouts. For a true "luxury first" catamaran consider a Bali 5.4 or Sunreef 60 — but at very different price points.

Frequently Asked Questions

Is the Lagoon 40 bigger than the Lagoon 50?
The Lagoon 40 is 40 ft (11.97 m) long with a 6.78 m beam, while the Lagoon 50 is 50 ft (14.76 m) with a 8.1 m beam. The Lagoon 50 is the longer boat, but the difference of 10 ft may be marginal once you step on board.
Which is better for a family — Lagoon 40 or Lagoon 50?
The Lagoon 50 is the stronger family pick — designed with family / large group in mind, with 4 guest cabins and a layout forgiving for kids new to sailing. The Lagoon 40 leans couples / small family — fine for older families with sailing experience.
Which is better value — Lagoon 40 or Lagoon 50?
In our tracking, the two boats are priced within ~$500/week of each other at the low end, so value depends on which features you weight: the Lagoon 40 gives you AC, generator, watermaker; the Lagoon 50 gives you AC, generator, watermaker.
Can the Lagoon 40 and Lagoon 50 charter in the same destinations?
Lagoon 40: Caribbean, Mediterranean, Mexico & Central America, Red Sea & Middle East, Northern Europe & Baltic, US East Coast & Florida. Lagoon 50: Caribbean, Mediterranean, Indian Ocean, South East Asia, Atlantic & Offshore, Red Sea & Middle East, South America & Galápagos. Where they overlap (often the Caribbean + Mediterranean), they're both well-supported by local charter fleets and you can usually get a checkout sail either way.
How many guests can each boat sleep?
Lagoon 40: 3 guest cabins + 1 crew cabin(s), sleeps up to 6 guests in standard charter config. Lagoon 50: 4 guest cabins + 2 crew cabin(s), sleeps up to 8 guests. The Lagoon 50 sleeps more; pick that one for larger groups.
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