Chaparral 18 Sport  2013 boat specs
Chaparral
Chaparral 18 Sport 2013
2013
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VS
Chaparral 236 SSi Sportboat 2006 boat specs
Chaparral
Chaparral 236 SSi Sportboat 2006
2006
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Chaparral 18 Sport 2013 vs Chaparral 236 SSi Sportboat 2006: Same Brand, Different Boat

The Chaparral 18 Sport 2013 is a deep-V design and the Chaparral 236 SSi Sportboat 2006 is a modified-V design, so you're likely deciding between two noticeably different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.

Size is the most obvious dividing line here. The Chaparral 236 SSi Sportboat 2006 measures 24,0 feet overall (2006), giving it roughly 5,7 additional feet of deck space compared to the Chaparral 18 Sport 2013 at 18,3 feet (2013). Weight tells a clearer story for trailering families: the Chaparral 236 SSi Sportboat 2006 tips the scales at 4 338 lbs - 2 038 lbs less than the Chaparral 18 Sport 2013 at 2 300 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 375 hp, the Chaparral 236 SSi Sportboat 2006 has a 155-hp advantage over the Chaparral 18 Sport 2013's 220-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Chaparral 236 SSi Sportboat 2006 carries 54 gallons versus 25 gallons in the Chaparral 18 Sport 2013. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

For family outings this is probably the sharpest distinction between the two. The Chaparral 236 SSi Sportboat 2006 is rated for 12 passengers, while the Chaparral 18 Sport 2013 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Chaparral 236 SSi Sportboat 2006 could be the deciding factor.

Bottom line: Choose the Chaparral 236 SSi Sportboat 2006 if your priority is putting more people on the water - it handles 12 passengers and at 24,0 ft it has the deck room to back that rating up comfortably. The Chaparral 18 Sport 2013 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
MakeChaparral
MakeChaparral
Model18 Sport
Model236 SSi Sportboat
Model Year2013
Model Year2006
Measurements / Dimensions
Beam7 ft. 6 in. (2.29 m)
Beam8 ft. 6 in. (2.59 m)
Beam - Meters2.29
Beam - Meters2.59
Beam - Inches90
Beam - Inches102
Bridge clearance - Detail4 ft. 6 in. (1.37 m) 7 ft. 4 in. (2.23 m) with arch tower
Bridge clearance - Detail4 ft. 7.5 in. (1.41 m)
Bridge clearance - Meters2.24
Bridge clearance - Meters1.42
Bridge clearance - Inches88
Bridge clearance - Inches55.5
Deadrise18°
Deadrise20℃
Draft [drive up] - Detail13 in. (33 cm)
Draft [drive up] - Detail22 in. (56 cm)
Draft [drive up] meters0.33
Draft [drive up] meters0.56
Draft [drive up] inches13
Draft [drive up] inches22
Draft [max] - Detail31 in. (79 cm)
Draft [max] - Detail35 in. (89 cm)
Draft [max] - Meters0.79
Draft [max] - Meters0.89
Draft [max] - Inches31
Draft [max] - Inches35
Weight - Detail2,300 lbs. (1,043 kg)
Weight - Detail4,338 lbs. (1,968 kg)
Weight - kg1043.26
Weight - kg1967.68
Weight - lbs.2300
Weight - lbs.4338
Length - Feet18.33
Length - Feet24
Length overall - Detail18 ft. 4 in. (5.59 m)
Length overall - Detail24 ft. 1 in. (7.34 m)
Length overall - Meters5.59
Length overall - Meters7.34
Length overall - Inches220
Length overall - Inches289
Length - Metersnot available
Length - Meters7.34
Length - Inchesnot available
Length - Inches1
Body / Hull
Hull materialFiberglass
Hull materialnot available
Hull typeDeep Vee
Hull typeModified Vee
Engine and Drivetrain
Engine makeMercury
Engine makenot available
Engine model3.0 l MPI (Catalyst) Alpha
Engine modelnot available
Fuel tank capacity - Detail25 gal. (95 l)
Fuel tank capacity - Detail54 gal. (204 l)
Fuel tank capacity - Liters94.64
Fuel tank capacity - Liters204.41
Fuel tank capacity - Gal25
Fuel tank capacity - Gal54
Fuel typeGas
Fuel typenot available
Drive typeI/O
Drive typeI/O
Horsepower135 hp
Horsepowernot available
Engine max220 hp (164 kW)
Engine max375 hp (280 kW)
Operational Info
Maximum capacity1,160 lbs.
Maximum capacity1,655 lbs.
Maximum people8
Maximum people12

Chaparral 18 Sport 2013 vs Chaparral 236 SSi Sportboat 2006 - Common Questions

Which is the larger boat - the Chaparral 18 Sport 2013 or the Chaparral 236 SSi Sportboat 2006?
The Chaparral 236 SSi Sportboat 2006 is the longer of the two at 24,0 feet overall. The Chaparral 18 Sport 2013 comes in at 18,3 feet, making it roughly 5,7 ft shorter - a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer - the Chaparral 18 Sport 2013 or the Chaparral 236 SSi Sportboat 2006?
For trailering, the Chaparral 18 Sport 2013 has the edge at 2 300 lbs dry weight versus 4 338 lbs for the Chaparral 236 SSi Sportboat 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 Chaparral 236 SSi Sportboat 2006 is rated to a maximum of 375 hp, giving it the larger power ceiling. The Chaparral 18 Sport 2013 tops out at 220 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 Chaparral 18 Sport 2013 is Coast Guard rated for 8 passengers, while the Chaparral 236 SSi Sportboat 2006 is certified for 12. 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 Chaparral 236 SSi Sportboat 2006 measures 102" wide, compared to 90" for the Chaparral 18 Sport 2013. 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 Chaparral 18 Sport 2013 or the Chaparral 236 SSi Sportboat 2006?
The Chaparral 236 SSi Sportboat 2006 has the bigger tank at 54 gallons, versus 25 gallons on the Chaparral 18 Sport 2013. That 29-gallon difference translates to roughly 87–145 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Chaparral 18 Sport 2013 and Chaparral 236 SSi Sportboat 2006 from the same manufacturer?
Yes - both the Chaparral 18 Sport 2013 and the Chaparral 236 SSi Sportboat 2006 are built by Chaparral. 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.