Glastron GS 259 2006 boat specs
Glastron
Glastron GS 259 2006
2006
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VS
Glastron GT 185 SF 2010 boat specs
Glastron
Glastron GT 185 SF 2010
2010
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Glastron GS 259 2006 vs Glastron GT 185 SF 2010 — Same Brand, Different Boat

The Glastron GS 259 2006 vs Glastron GT 185 SF 2010 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 GS 259 2006 measures 24,0 feet overall (2006), giving it roughly 5,6 additional feet of deck space compared to the Glastron GT 185 SF 2010 at 18,4 feet (2010). Weight tells a clearer story for trailering families: the Glastron GS 259 2006 tips the scales at 5 535 lbs — 3 200 lbs more than the Glastron GT 185 SF 2010 at 2 335 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 Glastron GS 259 2006 carries a rated maximum of 320 hp. Engine data for the Glastron GT 185 SF 2010 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.Fuel capacity breaks the other way: the Glastron GS 259 2006 carries 56 gallons versus 23 gallons in the Glastron GT 185 SF 2010. 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 185 SF 2010 is rated for 8 passengers, while the Glastron GS 259 2006 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Glastron GT 185 SF 2010 could be the deciding factor.

Bottom line: Choose the Glastron GT 185 SF 2010 if your priority is putting more people on the water — it handles 8 passengers and at 18,4 ft it has the deck room to back that rating up comfortably. The Glastron GS 259 2006 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 7 that costs less to run day-to-day.
General Boat Info
MakeGlastron
MakeGlastron
ModelGS 259
ModelGT 185 SF
Model Year2006
Model Year201
Measurements / Dimensions
Beam102 in. (2.59 m)
Beam88 in. (2.24 m)
Beam - Meters2.59
Beam - Meters2.24
Beam - Inches102
Beam - Inches88
Deadrise20℃
Deadrise21℃
Depth - Detail84 in. (2.13 m) Cockpit: 36 in. (.91 m)
Depth - Detail44 in. (1.12 m) Cockpit: 28.5 in. (0.72 m) Maximum: 59 in. (1.5 m)
Depth - Centimeters213.36
Depth - Centimeters149.86
Depth - Inches84
Depth - Inches59
Draft [max] - Detail36 in. (.91 m)
Draft [max] - Detail31 in. (0.79 m)
Draft [max] - Meters0.91
Draft [max] - Meters0.79
Draft [max] - Inches36
Draft [max] - Inches31
Weight - Detailw/ 5.7 Gi Volvo Penta?: 5,535 lbs. (2,511 kg)
Weight - Detail2,335 lbs. (1,059 kg) with engine
Weight - kg2510.63
Weight - kg1059.14
Weight - lbs.5535
Weight - lbs.2335
Width [transom] - Detail98 in. (2.49 m)
Width [transom] - Detail86 in. (2.18 m)
Length - Feet24
Length - Feet18.42
Length - Inches1
Length - Inchesnot available
Length overall - Detail24 ft. 10 in. (7.57 m)
Length overall - Detail17 ft. 1 in. (5.21 m)
Length overall - Meters7.57
Length overall - Meters5.21
Length overall - Inches298
Length overall - Inches205
Draft [drive up] - Detailnot available
Draft [drive up] - Detail16 in. (0.41 m)
Draft [drive up] metersnot available
Draft [drive up] meters0.41
Draft [drive up] inchesnot available
Draft [drive up] inches16
Length [over all with swim platform]not available
Length [over all with swim platform]18 ft. 5 in. (5.61 m)
Engine and Drivetrain
Engine/s standard5.0 GL Volvo Penta?
Engine/s standardnot available
Fuel tank capacity - Detail56 gal. (212 l)
Fuel tank capacity - Detail23 gal. (87 l)
Fuel tank capacity - Liters211.98
Fuel tank capacity - Liters87.06
Fuel tank capacity - Gal56
Fuel tank capacity - Gal23
Drive typeI/O
Drive typeI/O
Engine max320 hp
Engine maxnot available
Fuel typenot available
Fuel typeGas
Operational Info
Maximum capacity2,240 lbs. (1,016 kg)
Maximum capacity1,150 lbs. (522 kg)
Maximum peoplenot available
Maximum people8 or 1,150 lbs. (522 kg)
Body / Hull
Hull materialnot available
Hull materialFiberglass
Hull typenot available
Hull typeDeep Vee
Trailer Info
Trailer - Length over allnot available
Trailer - Length over all21 ft. 10 in. (6.65 m)

Glastron GS 259 2006 vs Glastron GT 185 SF 2010 — Common Questions

Which is the larger boat — the Glastron GS 259 2006 or the Glastron GT 185 SF 2010?
The Glastron GS 259 2006 is the longer of the two at 24,0 feet overall. The Glastron GT 185 SF 2010 comes in at 18,4 feet, making it roughly 5,6 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Glastron GS 259 2006 or the Glastron GT 185 SF 2010?
For trailering, the Glastron GT 185 SF 2010 has the edge at 2 335 lbs dry weight versus 5 535 lbs for the Glastron GS 259 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.
What is the maximum horsepower rating for these boats?
The Glastron GS 259 2006 has a documented max rating of 320 hp. Engine specifications for the Glastron GT 185 SF 2010 were not available in our database — check the OEM spec sheet or manufacturer's website for confirmation.
How many people can each boat hold?
The Glastron GS 259 2006 is Coast Guard rated for 7 passengers, while the Glastron GT 185 SF 2010 is certified for 8. 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 GS 259 2006 measures 102" wide, compared to 88" for the Glastron GT 185 SF 2010. 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 GS 259 2006 or the Glastron GT 185 SF 2010?
The Glastron GS 259 2006 has the bigger tank at 56 gallons, versus 23 gallons on the Glastron GT 185 SF 2010. That 33-gallon difference translates to roughly 99–165 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Glastron GS 259 2006 and Glastron GT 185 SF 2010 from the same manufacturer?
Yes — both the Glastron GS 259 2006 and the Glastron GT 185 SF 2010 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.