Avalon Catalina - 18 Foot 2008 boat specs
Avalon
Avalon Catalina - 18 Foot 2008
2008
View full specs →
VS
Avalon Somerset DC - 24 Foot 2006 boat specs
Avalon
Avalon Somerset DC - 24 Foot 2006
2006
View full specs →

Avalon Catalina - 18 Foot 2008 vs Avalon Somerset DC - 24 Foot 2006 — Same Brand, Different Boat

The Avalon Catalina - 18 Foot 2008 vs Avalon Somerset DC - 24 Foot 2006 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.

Size is the most obvious dividing line here. The Avalon Somerset DC - 24 Foot 2006 measures 24,0 feet overall (2006), giving it roughly 6,0 additional feet of deck space compared to the Avalon Catalina - 18 Foot 2008 at 18,0 feet (2008). Weight tells a clearer story for trailering families: the Avalon Somerset DC - 24 Foot 2006 tips the scales at 1 976 lbs — 485 lbs less than the Avalon Catalina - 18 Foot 2008 at 1 491 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.

The power gap is worth calling out. Rated to 135 hp, the Avalon Somerset DC - 24 Foot 2006 has a 60-hp advantage over the Avalon Catalina - 18 Foot 2008's 75-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.

For family outings this is probably the sharpest distinction between the two. The Avalon Somerset DC - 24 Foot 2006 is rated for 16 passengers, while the Avalon Catalina - 18 Foot 2008 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Avalon Somerset DC - 24 Foot 2006 could be the deciding factor.

Bottom line: Choose the Avalon Somerset DC - 24 Foot 2006 if your priority is putting more people on the water — it handles 16 passengers and at 24,0 ft it has the deck room to back that rating up comfortably. The Avalon Catalina - 18 Foot 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 8 that costs less to run day-to-day.
General Boat Info
MakeAvalon
MakeAvalon
ModelCatalina - 18 Foot
ModelSomerset DC - 24 Foot
Model Year2008
Model Year2006
Measurements / Dimensions
Weight - Detailw/ furniture: 1,491 lbs
Weight - Detailw/ furniture: 1,976 lbs
Weight - kg676.31
Weight - kg896.3
Weight - lbs.1491
Weight - lbs.1976
Width [transom] - DetailDeck: 8 ft
Width [transom] - DetailDeck: 8 ft. 6 in
Length - Feet18
Length - Feet24
Length overall - Detail18 ft. 0 in
Length overall - Detail24 ft. 0 in
Length overall - Meters5.49
Length overall - Meters7.32
Length overall - Inches216
Length overall - Inches288
Length [deck]not available
Length [deck]24 ft
Body / Hull
Hull materialAluminum
Hull materialnot available
Hull typePontoon
Hull typenot available
Pontoon and Inflatable Specific
Tube diameter23 in
Tube diameter25 in
Engine and Drivetrain
Fuel typeGas
Fuel typenot available
Drive typeOutboard
Drive typeI/O
Engine max75 hp
Engine max135 hp
Fuel tank capacity - Detailnot available
Fuel tank capacity - Detail36 gal
Fuel tank capacity - Litersnot available
Fuel tank capacity - Liters136.27
Fuel tank capacity - Galnot available
Fuel tank capacity - Gal36
Operational Info
Maximum capacity1,850 lbs
Maximum capacity2,800 lbs
Maximum people8 or 1,480 lbs
Maximum people16

Avalon Catalina - 18 Foot 2008 vs Avalon Somerset DC - 24 Foot 2006 — Common Questions

Which is the larger boat — the Avalon Catalina - 18 Foot 2008 or the Avalon Somerset DC - 24 Foot 2006?
The Avalon Somerset DC - 24 Foot 2006 is the longer of the two at 24,0 feet overall. The Avalon Catalina - 18 Foot 2008 comes in at 18,0 feet, making it roughly 6,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Avalon Catalina - 18 Foot 2008 or the Avalon Somerset DC - 24 Foot 2006?
For trailering, the Avalon Catalina - 18 Foot 2008 has the edge at 1 491 lbs dry weight versus 1 976 lbs for the Avalon Somerset DC - 24 Foot 2006. 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.
Which boat can handle a bigger outboard?
The Avalon Somerset DC - 24 Foot 2006 is rated to a maximum of 135 hp, giving it the larger power ceiling. The Avalon Catalina - 18 Foot 2008 tops out at 75 hp. Keep in mind that maximum ratings are just that — matching the motor to the actual load and usage pattern usually matters more than chasing the ceiling.
How many people can each boat hold?
The Avalon Catalina - 18 Foot 2008 is Coast Guard rated for 8 passengers, while the Avalon Somerset DC - 24 Foot 2006 is certified for 16. 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.
Are the Avalon Catalina - 18 Foot 2008 and Avalon Somerset DC - 24 Foot 2006 from the same manufacturer?
Yes — both the Avalon Catalina - 18 Foot 2008 and the Avalon Somerset DC - 24 Foot 2006 are built by Avalon. 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.