Shallow Sport 18.5 ft. Classic  2008 boat specs
Shallow Sport
Shallow Sport 18.5 ft. Classic 2008
2008
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VS
Shallow Sport 20 ft. Classic 2011 boat specs
Shallow Sport
Shallow Sport 20 ft. Classic 2011
2011
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Shallow Sport 18.5 ft. Classic 2008 vs Shallow Sport 20 ft. Classic 2011 — Same Brand, Different Boat

The Shallow Sport 18.5 ft. Classic 2008 vs Shallow Sport 20 ft. Classic 2011 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.

The power gap is worth calling out. Rated to 200 hp, the Shallow Sport 20 ft. Classic 2011 has a 50-hp advantage over the Shallow Sport 18.5 ft. Classic 2008's 150-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads — 43 gal and 43 gal — so range won't be a tiebreaker here.

For family outings this is probably the sharpest distinction between the two. The Shallow Sport 20 ft. Classic 2011 is rated for 6 passengers, while the Shallow Sport 18.5 ft. Classic 2008 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Shallow Sport 20 ft. Classic 2011 could be the deciding factor.

Bottom line: Choose the Shallow Sport 20 ft. Classic 2011 if your priority is putting more people on the water — it handles 6 passengers and at 2,0 ft it has the deck room to back that rating up comfortably. The Shallow Sport 18.5 ft. Classic 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.
General Boat Info
MakeShallow Sport
MakeShallow Sport
Model18.5 ft. Classic
Model20 ft. Classic
Model Year2008
Model Year2011
Measurements / Dimensions
Beam7 ft. 6 in
Beamnot available
Beam - Meters2.29
Beam - Metersnot available
Beam - Inches9
Beam - Inchesnot available
Draft [max] - Detail6 in
Draft [max] - Detailnot available
Draft [max] - Meters0.15
Draft [max] - Metersnot available
Draft [max] - Inches6
Draft [max] - Inchesnot available
Weight - Detail750 lbs
Weight - Detailnot available
Weight - kg340.19
Weight - kgnot available
Weight - lbs.75
Weight - lbs.not available
Length - Feet18
Length - Feet2
Length - Inches6
Length - Inchesnot available
Length overall - Detail18 ft. 6 in
Length overall - Detailnot available
Length overall - Meters5.64
Length overall - Metersnot available
Length overall - Inches222
Length overall - Inchesnot available
Body / Hull
Hull materialFiberglass
Hull materialComposite
Hull typenot available
Hull typeTunnel
Engine and Drivetrain
Engine/s standard115 hp
Engine/s standardnot available
Fuel tank capacity - Detail43 gal
Fuel tank capacity - Detail43 gal
Fuel tank capacity - Liters162.77
Fuel tank capacity - Liters162.77
Fuel tank capacity - Gal43
Fuel tank capacity - Gal43
Fuel typeGas
Fuel typeGas
Drive typeOutboard
Drive typeOutboard
Engine max150 hp
Engine max200 hp
Operational Info
Maximum capacity1,500 lbs
Maximum capacity1,700 lbs
Maximum people5
Maximum people6

Shallow Sport 18.5 ft. Classic 2008 vs Shallow Sport 20 ft. Classic 2011 — Common Questions

Which is the larger boat — the Shallow Sport 18.5 ft. Classic 2008 or the Shallow Sport 20 ft. Classic 2011?
The Shallow Sport 18.5 ft. Classic 2008 is the longer of the two at 18,0 feet overall. The Shallow Sport 20 ft. Classic 2011 comes in at 2,0 feet, making it roughly 16,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which boat can handle a bigger outboard?
The Shallow Sport 20 ft. Classic 2011 is rated to a maximum of 200 hp, giving it the larger power ceiling. The Shallow Sport 18.5 ft. Classic 2008 tops out at 150 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 Shallow Sport 18.5 ft. Classic 2008 is Coast Guard rated for 5 passengers, while the Shallow Sport 20 ft. Classic 2011 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.
How do the fuel tanks compare on the Shallow Sport 18.5 ft. Classic 2008 and Shallow Sport 20 ft. Classic 2011?
Both boats carry similar fuel loads — 43 gallons and 43 gallons respectively. Range will depend heavily on motor choice, throttle usage, and whether you're on flat lake water or coastal chop.
Are the Shallow Sport 18.5 ft. Classic 2008 and Shallow Sport 20 ft. Classic 2011 from the same manufacturer?
Yes — both the Shallow Sport 18.5 ft. Classic 2008 and the Shallow Sport 20 ft. Classic 2011 are built by Shallow Sport. 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.