Glastron GT 225 2012 boat specs
Glastron
Glastron GT 225 2012
2012
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VS
Glastron SX 175 2006 boat specs
Glastron
Glastron SX 175 2006
2006
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Glastron GT 225 2012 vs Glastron SX 175 2006 — Same Brand, Different Boat

The Glastron GT 225 2012 vs Glastron SX 175 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 Glastron GT 225 2012 measures 21,5 feet overall (2012), giving it roughly 4,5 additional feet of deck space compared to the Glastron SX 175 2006 at 17,0 feet (2006). Weight tells a clearer story for trailering families: the Glastron SX 175 2006 tips the scales at 2 335 lbs — 2 332 lbs less than the Glastron GT 225 2012 at 3 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 300 hp, the Glastron GT 225 2012 has a 110-hp advantage over the Glastron SX 175 2006's 190-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Glastron GT 225 2012 carries 34 gallons versus 23 gallons in the Glastron SX 175 2006. 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 Glastron GT 225 2012 is rated for 10 passengers, while the Glastron SX 175 2006 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Glastron GT 225 2012 could be the deciding factor.

Bottom line: Choose the Glastron GT 225 2012 if your priority is putting more people on the water — it handles 10 passengers and at 21,5 ft it has the deck room to back that rating up comfortably. The Glastron SX 175 2006 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
MakeGlastron
MakeGlastron
ModelGT 225
ModelSX 175
Model Year2012
Model Year2006
Measurements / Dimensions
Beam99.5 in. (2.53 m)
Beam88 in. (2.24 m)
Beam - Meters2.54
Beam - Meters2.24
Beam - Inches99.5
Beam - Inches88
Deadrise21℃
Deadrise21℃
Depth - Detail46.5 in. (1.18 m) Cockpit: 30.5 in. (0.77 m)
Depth - Detail44 in. (1.12 m) Cockpit: 28.5 in. (.72 m)
Depth - Centimeters119.38
Depth - Centimeters111.76
Depth - Inches46.5
Depth - Inches44
Draft [max] - Detail31.5 in. (0.80 m)
Draft [max] - Detail31 in. (.79 m)
Draft [max] - Meters0.81
Draft [max] - Meters0.79
Draft [max] - Inches31.5
Draft [max] - Inches31
Weight - Detail3,000 lbs. (1,364 kg)
Weight - Detailw/ 3.0 GL Volvo Penta?: 2,335 lbs. (1,059 kg)
Weight - kg1360.78
Weight - kg1059.14
Weight - lbs.3
Weight - lbs.2335
Width [transom] - Detail92 in. (2.34 m)
Width [transom] - Detail86 in. (2.18 m)
Length - Feet21.5
Length - Feet17
Length overall - Detail21 ft. 6 in. (6.55 m)
Length overall - Detail17 ft. 1 in. (5.21 m)
Length overall - Meters6.55
Length overall - Meters5.21
Length overall - Inches258
Length overall - Inches205
Length - Inchesnot available
Length - Inches1
Body / Hull
Hull materialFiberglass
Hull materialnot available
Hull typeDeep Vee
Hull typenot available
Engine and Drivetrain
Engine makeMercury
Engine makenot available
Engine model4.3L MPI EC MerCruiser
Engine modelnot available
Fuel tank capacity - Detail34 gal. (128 l)
Fuel tank capacity - Detail23 gal. (87 l)
Fuel tank capacity - Liters128.7
Fuel tank capacity - Liters87.06
Fuel tank capacity - Gal34
Fuel tank capacity - Gal23
Fuel typeGas
Fuel typenot available
Drive typeI/O
Drive typeI/O
Horsepower220 hp
Horsepowernot available
Engine max300 hp
Engine max190 hp
Engine/s standardnot available
Engine/s standard3.0 GL Volvo Penta?
Operational Info
Maximum capacity1,475 lbs. (669 kg)
Maximum capacity1,150 lbs. (522 kg)
Maximum people10 or 1,475 lbs. (669 kg)
Maximum peoplenot available
Trailer Info
Trailer - Length over all25 ft. 4 in. (7.72 m)
Trailer - Length over allnot available

Glastron GT 225 2012 vs Glastron SX 175 2006 — Common Questions

Which is the larger boat — the Glastron GT 225 2012 or the Glastron SX 175 2006?
The Glastron GT 225 2012 is the longer of the two at 21,5 feet overall. The Glastron SX 175 2006 comes in at 17,0 feet, making it roughly 4,5 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Glastron GT 225 2012 or the Glastron SX 175 2006?
For trailering, the Glastron GT 225 2012 has the edge at 3 lbs dry weight versus 2 335 lbs for the Glastron SX 175 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 Glastron GT 225 2012 is rated to a maximum of 300 hp, giving it the larger power ceiling. The Glastron SX 175 2006 tops out at 190 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 Glastron GT 225 2012 is Coast Guard rated for 10 passengers, while the Glastron SX 175 2006 is certified for 5. 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 Glastron GT 225 2012 measures 100" wide, compared to 88" for the Glastron SX 175 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 Glastron GT 225 2012 or the Glastron SX 175 2006?
The Glastron GT 225 2012 has the bigger tank at 34 gallons, versus 23 gallons on the Glastron SX 175 2006. That 11-gallon difference translates to roughly 33–55 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Glastron GT 225 2012 and Glastron SX 175 2006 from the same manufacturer?
Yes — both the Glastron GT 225 2012 and the Glastron SX 175 2006 are built by Glastron. 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.