Maxum 2100SD Sport Deck 2006 boat specs
Maxum
Maxum 2100SD Sport Deck 2006
2006
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Maxum 3500 SY 2007 boat specs
Maxum
Maxum 3500 SY 2007
2007
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Maxum 2100SD Sport Deck 2006 vs Maxum 3500 SY 2007: Same Brand, Different Boat

The Maxum 2100SD Sport Deck 2006 vs Maxum 3500 SY 2007 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 Maxum 3500 SY 2007 measures 34,0 feet overall (2007), giving it roughly 13,0 additional feet of deck space compared to the Maxum 2100SD Sport Deck 2006 at 21,0 feet (2006). Weight tells a clearer story for trailering families: the Maxum 3500 SY 2007 tips the scales at 15 510 lbs - 11 582 lbs less than the Maxum 2100SD Sport Deck 2006 at 3 928 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 420 hp, the Maxum 3500 SY 2007 has a 120-hp advantage over the Maxum 2100SD Sport Deck 2006's 300-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Maxum 3500 SY 2007 carries 240 gallons versus 55 gallons in the Maxum 2100SD Sport Deck 2006. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 10 passengers - a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.

Bottom line: The Maxum 3500 SY 2007 at 34,0 ft is the right call if deck space, comfort, and entertaining are top of your list. The Maxum 2100SD Sport Deck 2006 at 21,0 ft wins on trailering ease, likely lower purchase price, and simpler docking - a solid choice for a buyer who wants more boat for less money.
General Boat Info
MakeMaxum
MakeMaxum
Model2100SD Sport Deck
Model3500 SY
Model Year2006
Model Year2007
Measurements / Dimensions
Beam8 ft. 6 in. (2.59 m)
Beam12 ft. 2 in. (3.71 m)
Beam - Meters2.59
Beam - Meters3.71
Beam - Inches102
Beam - Inches146
Bridge clearance - Detail4 ft. 10 in. (1.47 m)
Bridge clearance - DetailMax: 12 ft. 6 in. (3.81 m)
Bridge clearance - Meters1.47
Bridge clearance - Meters3.81
Bridge clearance - Inches58
Bridge clearance - Inches150
Deadrise20℃
Deadrise15℃
Draft [drive up] - Detail1 ft. 7 in. (.48 m)
Draft [drive up] - Detail2 ft. 2 in. (0.66 m)
Draft [drive up] meters0.48
Draft [drive up] meters0.66
Draft [drive up] inches19
Draft [drive up] inches26
Draft [max] - Detail3 ft. 0 in. (.91 m)
Draft [max] - Detail3 ft. 1 in. (0.94 m)
Draft [max] - Meters0.91
Draft [max] - Meters0.94
Draft [max] - Inches36
Draft [max] - Inches37
Weight - Detail3,928 lbs. (1,782 kg) with standard engine
Weight - DetailWith standard engine: 15,510 lbs. (7,035 kg)
Weight - kg1781.71
Weight - kg7035.21
Weight - lbs.3928
Weight - lbs.15510
Length - Meters6.43
Length - Meters10.64
Length - Feet21
Length - Feet34
Length - Inches1
Length - Inches11
Length [over all with swim platform]23 ft. 2 in. (7.06 m)
Length [over all with swim platform]38 ft. 0 in. (11.58 m)
Length overall - Detail21 ft. 1 in. (6.43 m)
Length overall - Detail34 ft. 11 in. (10.64 m)
Length overall - Meters6.43
Length overall - Meters10.64
Length overall - Inches253
Length overall - Inches419
Engine and Drivetrain
Engine/s standard5.0 l Alpha I, 220 hp
Engine/s standardTwin 300 hp
Fuel tank capacity - Detail55 gal. (212 l)
Fuel tank capacity - Detail240 gal. (908.4 l)
Fuel tank capacity - Liters208.2
Fuel tank capacity - Liters908.5
Fuel tank capacity - Gal55
Fuel tank capacity - Gal240
Fuel typeGas
Fuel typeGas or Diesel
Drive typeInboard
Drive typeInboard - Twin
Engine max300 hp
Engine maxTwin 420 hp
Operational Info
Water capacity10 gal. (38 l)
Water capacity40 gal. (151.4 l)
Maximum people10
Maximum peoplenot available
Holding tank capacity - Detailnot available
Holding tank capacity - Detail40 gal. (151.4 l)
Holding tank capacity - Litersnot available
Holding tank capacity - Liters151.42
Holding tank capacity - Galnot available
Holding tank capacity - Gal40
Body / Hull
Hull materialnot available
Hull materialFiberglass

Maxum 2100SD Sport Deck 2006 vs Maxum 3500 SY 2007 - Common Questions

Which is the larger boat - the Maxum 2100SD Sport Deck 2006 or the Maxum 3500 SY 2007?
The Maxum 3500 SY 2007 is the longer of the two at 34,0 feet overall. The Maxum 2100SD Sport Deck 2006 comes in at 21,0 feet, making it roughly 13,0 ft shorter - a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer - the Maxum 2100SD Sport Deck 2006 or the Maxum 3500 SY 2007?
For trailering, the Maxum 2100SD Sport Deck 2006 has the edge at 3 928 lbs dry weight versus 15 510 lbs for the Maxum 3500 SY 2007. 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 Maxum 3500 SY 2007 is rated to a maximum of 420 hp, giving it the larger power ceiling. The Maxum 2100SD Sport Deck 2006 tops out at 300 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 Maxum 2100SD Sport Deck 2006 is Coast Guard rated for 10 passengers, while the Maxum 3500 SY 2007 is certified for 10. 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 Maxum 3500 SY 2007 measures 146" wide, compared to 102" for the Maxum 2100SD Sport Deck 2006. 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 Maxum 2100SD Sport Deck 2006 or the Maxum 3500 SY 2007?
The Maxum 3500 SY 2007 has the bigger tank at 240 gallons, versus 55 gallons on the Maxum 2100SD Sport Deck 2006. That 185-gallon difference translates to roughly 555–925 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Maxum 2100SD Sport Deck 2006 and Maxum 3500 SY 2007 from the same manufacturer?
Yes - both the Maxum 2100SD Sport Deck 2006 and the Maxum 3500 SY 2007 are built by Maxum. 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.