Larson LX 205 S I/O 2013 vs Larson SEi 180 Fish Series I/O 2005 - Boat Spec Comparison

Q: Which is easier to trailer — the Larson LX 205 S I/O 2013 or the Larson SEi 180 Fish Series I/O 2005?

For trailering, the Larson LX 205 S I/O 2013 has the edge at 27 lbs dry weight versus 265 lbs for the Larson SEi 180 Fish Series I/O 2005. 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.

Q: How many people can each boat hold?

The Larson LX 205 S I/O 2013 is Coast Guard rated for 8 passengers, while the Larson SEi 180 Fish Series I/O 2005 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.

Q: Which boat is wider, and does it affect trailering?

The Larson LX 205 S I/O 2013 measures 96" wide, compared to 93" for the Larson SEi 180 Fish Series I/O 2005. 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.

Q: Which boat has the larger fuel tank — the Larson LX 205 S I/O 2013 or the Larson SEi 180 Fish Series I/O 2005?

The Larson SEi 180 Fish Series I/O 2005 has the bigger tank at 23 gallons, versus 3 gallons on the Larson LX 205 S I/O 2013. That 20-gallon difference translates to roughly 60–100 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Q: Are the Larson LX 205 S I/O 2013 and Larson SEi 180 Fish Series I/O 2005 from the same manufacturer?

Yes — both the Larson LX 205 S I/O 2013 and the Larson SEi 180 Fish Series I/O 2005 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.

Boat Comparison

Larson LX 205 S I/O 2013 vs Larson SEi 180 Fish Series I/O 2005

Larson

Larson LX 205 S I/O 2013

2013

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Larson

Larson SEi 180 Fish Series I/O 2005

2005

View full specs →

Detailed Evaluation & Buyer Recommendation

Larson LX 205 S I/O 2013 vs Larson SEi 180 Fish Series I/O 2005 — Same Brand, Different Boat

The Larson LX 205 S I/O 2013 vs Larson SEi 180 Fish Series I/O 2005 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.

For family outings this is probably the sharpest distinction between the two. The Larson LX 205 S I/O 2013 is rated for 8 passengers, while the Larson SEi 180 Fish Series I/O 2005 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Larson LX 205 S I/O 2013 could be the deciding factor.

Bottom line: Choose the Larson LX 205 S I/O 2013 if your priority is putting more people on the water — it handles 8 passengers and at 21,1 ft it has the deck room to back that rating up comfortably. The Larson SEi 180 Fish Series I/O 2005 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

ModelLX 205 S I/O

ModelSEi 180 Fish Series I/O

Model Year2013

Model Year2005

Measurements / Dimensions

Beam8 ft. (2.44 m)

Beam7 ft. 9 in

Beam - Meters2.44

Beam - Meters2.36

Beam - Inches96

Beam - Inches93

Deadrise21°

Deadrise21℃

Draft [max] - Detail31 in. (79 cm)

Draft [max] - Detail31 in. max

Draft [max] - Meters0.79

Draft [max] - Inches31

Weight - Detail2,700 lbs. (1,225 kg) with base engine (4.3L)

Weight - Detail2,650 lbs. apx

Weight - kg1224.7

Weight - kg1202.02

Weight - lbs.27

Weight - lbs.265

Length - Feet21.08

Length - Feetnot available

Length overall - Detail21 ft. 1 in. (6.42 m)

Length overall - Detail17 ft. 6 in

Length overall - Meters6.43

Length overall - Meters5.33

Length overall - Inches253

Length overall - Inches21

Body / Hull

Hull materialComposite

Hull materialFiberglass

Hull typeDeep Vee

Hull typenot available

Engine and Drivetrain

Fuel tank capacity - Detail30 gal. (114 l)

Fuel tank capacity - Detail23 gal

Fuel tank capacity - Liters113.56

Fuel tank capacity - Liters87.06

Fuel tank capacity - Gal3

Fuel tank capacity - Gal23

Fuel typeGas

Fuel typenot available

Drive typeOutboard

Drive typenot available

Operational Info

Maximum capacity1,400 lbs. (635 kg)

Maximum capacity1,100 lbs

Maximum people8

Maximum people6 Persons

Trailer Info

Trailer - DetailLX 3000 with swing tongue

Trailer - Detailnot available

Trailer - Length over all23 ft. 3 in. (7.08 m)

Trailer - Length over allnot available

Larson LX 205 S I/O 2013 vs Larson SEi 180 Fish Series I/O 2005 — Common Questions

Which is easier to trailer — the Larson LX 205 S I/O 2013 or the Larson SEi 180 Fish Series I/O 2005?

For trailering, the Larson LX 205 S I/O 2013 has the edge at 27 lbs dry weight versus 265 lbs for the Larson SEi 180 Fish Series I/O 2005. 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 LX 205 S I/O 2013 is Coast Guard rated for 8 passengers, while the Larson SEi 180 Fish Series I/O 2005 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 LX 205 S I/O 2013 measures 96" wide, compared to 93" for the Larson SEi 180 Fish Series I/O 2005. 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 LX 205 S I/O 2013 or the Larson SEi 180 Fish Series I/O 2005?

The Larson SEi 180 Fish Series I/O 2005 has the bigger tank at 23 gallons, versus 3 gallons on the Larson LX 205 S I/O 2013. That 20-gallon difference translates to roughly 60–100 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Are the Larson LX 205 S I/O 2013 and Larson SEi 180 Fish Series I/O 2005 from the same manufacturer?

Yes — both the Larson LX 205 S I/O 2013 and the Larson SEi 180 Fish Series I/O 2005 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.

← Larson LX 205 S I/O 2013 full specs ← Larson SEi 180 Fish Series I/O 2005 full specs