Larson 218 LXi 2010 boat specs
Larson
Larson 218 LXi 2010
2010
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Larson SEi 180 Ski  Fish I/O 2006 boat specs
Larson
Larson SEi 180 Ski Fish I/O 2006
2006
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Larson 218 LXi 2010 vs Larson SEi 180 Ski Fish I/O 2006 — Which Modified Vee Fits Your Needs?

When two boats share the same hull type — in this case both the Larson 218 LXi 2010 and the Larson SEi 180 Ski Fish I/O 2006 are modified vee designs with fiberglass construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?

Size is the most obvious dividing line here. The Larson 218 LXi 2010 measures 21,5 feet overall (2010), giving it roughly 4,5 additional feet of deck space compared to the Larson SEi 180 Ski Fish I/O 2006 at 17,0 feet (2006). Weight tells a clearer story for trailering families: the Larson 218 LXi 2010 tips the scales at 3 735 lbs — 3 470 lbs more than the Larson SEi 180 Ski Fish I/O 2006 at 265 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.

For family outings this is probably the sharpest distinction between the two. The Larson 218 LXi 2010 is rated for 9 passengers, while the Larson SEi 180 Ski Fish I/O 2006 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Larson 218 LXi 2010 could be the deciding factor.

Bottom line: Choose the Larson 218 LXi 2010 if your priority is putting more people on the water — it handles 9 passengers and at 21,5 ft it has the deck room to back that rating up comfortably. The Larson SEi 180 Ski Fish I/O 2006 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.
General Boat Info
MakeLarson
MakeLarson
Model218 LXi
ModelSEi 180 Ski Fish I/O
Model Year201
Model Year2006
Measurements / Dimensions
Beam8 ft. 3 in. (2.51 m)
Beam7 ft. 9 in. (2.36 m)
Beam - Meters2.51
Beam - Meters2.36
Beam - Inches99
Beam - Inches93
Deadrise22°
Deadrise21℃
Draft [max] - Detail33 in. (83.8 cm)
Draft [max] - Detail31 in. (78.7 cm)
Draft [max] - Meters0.84
Draft [max] - Meters0.79
Draft [max] - Inches33
Draft [max] - Inches31
Weight - Detail3,735 lbs. (1,690 lbs.)
Weight - Detail2,650 lbs. (1,202 kg)
Weight - kg1694.17
Weight - kg1202.02
Weight - lbs.3735
Weight - lbs.265
Length - Feet21.5
Length - Feet17
Length overall - Detail21 ft. 6 in. (6.55 m)
Length overall - Detail17 ft. 6 in. (5.33 m)
Length overall - Meters6.55
Length overall - Meters5.33
Length overall - Inches258
Length overall - Inches21
Length - Metersnot available
Length - Meters5.33
Length - Inchesnot available
Length - Inches6
Body / Hull
Hull materialFiberglass
Hull materialnot available
Hull typeModified Vee
Hull typeModified Vee
Engine and Drivetrain
Fuel tank capacity - Detail34 gal. (129 l)
Fuel tank capacity - Detail23 gal. (87 l)
Fuel tank capacity - Liters128.7
Fuel tank capacity - Liters87.06
Fuel tank capacity - Gal34
Fuel tank capacity - Gal23
Fuel typeGas
Fuel typenot available
Drive typeI/O
Drive typeI/O
Operational Info
Maximum capacity1,450 lbs. (658 kg)
Maximum capacity1,100 lbs. (499 kg)
Maximum people9
Maximum people6
Trailer Info
Trailer - Length over all27 ft. 0 in. (8.23 m)
Trailer - Length over allnot available
Trailer - Detailnot available
Trailer - DetailSingle-axle EZ Loader

Larson 218 LXi 2010 vs Larson SEi 180 Ski Fish I/O 2006 — Common Questions

Which is the larger boat — the Larson 218 LXi 2010 or the Larson SEi 180 Ski Fish I/O 2006?
The Larson 218 LXi 2010 is the longer of the two at 21,5 feet overall. The Larson SEi 180 Ski Fish I/O 2006 comes in at 17,0 feet, making it roughly 4,5 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Larson 218 LXi 2010 or the Larson SEi 180 Ski Fish I/O 2006?
For trailering, the Larson SEi 180 Ski Fish I/O 2006 has the edge at 265 lbs dry weight versus 3 735 lbs for the Larson 218 LXi 2010. Add a motor (typically 300–500 lbs for an outboard in this class), gear, and a partial fuel load and the difference grows. Lighter is friendlier on smaller tow vehicles and on fuel economy while hauling.
How many people can each boat hold?
The Larson 218 LXi 2010 is Coast Guard rated for 9 passengers, while the Larson SEi 180 Ski Fish I/O 2006 is certified for 6. Note that legal capacity and comfortable capacity aren't always the same thing — on a full day out, most experienced boaters aim for about 80% of the rated number to keep things comfortable.
Which boat is wider, and does it affect trailering?
The Larson 218 LXi 2010 measures 99" wide, compared to 93" for the Larson SEi 180 Ski Fish I/O 2006. The US standard-width towing limit is 8’6" (102") in most states — anything over that may need a wide-load permit. Confirm your specific route requirements with each state's DOT.
Which boat has the larger fuel tank — the Larson 218 LXi 2010 or the Larson SEi 180 Ski Fish I/O 2006?
The Larson 218 LXi 2010 has the bigger tank at 34 gallons, versus 23 gallons on the Larson SEi 180 Ski Fish I/O 2006. That 11-gallon difference translates to roughly 33–55 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Larson 218 LXi 2010 and Larson SEi 180 Ski Fish I/O 2006 from the same manufacturer?
Yes — both the Larson 218 LXi 2010 and the Larson SEi 180 Ski Fish I/O 2006 are built by Larson. That means shared dealer networks, common parts availability, and consistent build quality across the line. The choice between them is essentially a question of how much boat you need, not which brand you trust.