Shallow Sport 18 ft. Sport   2011 boat specs
Shallow Sport
Shallow Sport 18 ft. Sport 2011
2011
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VS
Shallow Sport 21 ft. Sport  2010 boat specs
Shallow Sport
Shallow Sport 21 ft. Sport 2010
2010
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Shallow Sport 18 ft. Sport 2011 vs Shallow Sport 21 ft. Sport 2010 — Same Brand, Different Boat

Matching a flat Shallow Sport 18 ft. Sport 2011 against a tunnel Shallow Sport 21 ft. Sport 2010 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.

The power gap is worth calling out. Rated to 200 hp, the Shallow Sport 21 ft. Sport 2010 has a 70-hp advantage over the Shallow Sport 18 ft. Sport 2011's 130-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 21 ft. Sport 2010 is rated for 7 passengers, while the Shallow Sport 18 ft. Sport 2011 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 21 ft. Sport 2010 could be the deciding factor.

Bottom line: Choose the Shallow Sport 21 ft. Sport 2010 if your priority is putting more people on the water — it handles 7 passengers and at 21,0 ft it has the deck room to back that rating up comfortably. The Shallow Sport 18 ft. Sport 2011 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 ft. Sport
Model21 ft. Sport
Model Year2011
Model Year201
Measurements / Dimensions
Beam7 ft. 8 in
Beamnot available
Beam - Meters2.34
Beam - Metersnot available
Beam - Inches92
Beam - Inchesnot available
Draft [drive up] - Detail3 in. on plane
Draft [drive up] - Detailnot available
Draft [drive up] meters0.08
Draft [drive up] metersnot available
Draft [drive up] inches3
Draft [drive up] 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 - Feet21
Body / Hull
Hull materialComposite
Hull materialComposite
Hull typeFlat
Hull typeTunnel
Engine and Drivetrain
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 max130 hp
Engine max200 hp
Operational Info
Maximum capacity1,500 lbs
Maximum capacity1,900 lbs
Maximum people5
Maximum people7

Shallow Sport 18 ft. Sport 2011 vs Shallow Sport 21 ft. Sport 2010 — Common Questions

Which is the larger boat — the Shallow Sport 18 ft. Sport 2011 or the Shallow Sport 21 ft. Sport 2010?
The Shallow Sport 21 ft. Sport 2010 is the longer of the two at 21,0 feet overall. The Shallow Sport 18 ft. Sport 2011 comes in at 18,0 feet, making it roughly 3,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which boat can handle a bigger outboard?
The Shallow Sport 21 ft. Sport 2010 is rated to a maximum of 200 hp, giving it the larger power ceiling. The Shallow Sport 18 ft. Sport 2011 tops out at 130 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 ft. Sport 2011 is Coast Guard rated for 5 passengers, while the Shallow Sport 21 ft. Sport 2010 is certified for 7. 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 ft. Sport 2011 and Shallow Sport 21 ft. Sport 2010?
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 ft. Sport 2011 and Shallow Sport 21 ft. Sport 2010 from the same manufacturer?
Yes — both the Shallow Sport 18 ft. Sport 2011 and the Shallow Sport 21 ft. Sport 2010 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.