Formosa Marine GRT 455 Tiller 2027 boat specs
Formosa Marine
Formosa Marine GRT 455 Tiller 2027
2027
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Formosa Marine SRT 595 Centre Cabin 2026 boat specs
Formosa Marine
Formosa Marine SRT 595 Centre Cabin 2026
2026
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Formosa Marine GRT 455 Tiller 2027 vs Formosa Marine SRT 595 Centre Cabin 2026: Which V-Hull Boat Fits Your Needs?

Both the Formosa Marine GRT 455 Tiller 2027 and the Formosa Marine SRT 595 Centre Cabin 2026 are V-hull designs, both built in aluminium, so the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?

Size is the most obvious dividing line here. The Formosa Marine SRT 595 Centre Cabin 2026 measures 19,7 feet overall (2026), giving it roughly 3,5 additional feet of deck space compared to the Formosa Marine GRT 455 Tiller 2027 at 16,1 feet (2027). Weight tells a clearer story for trailering families: the Formosa Marine SRT 595 Centre Cabin 2026 tips the scales at 2 152 lbs - 1 314 lbs less than the Formosa Marine GRT 455 Tiller 2027 at 838 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 200 hp, the Formosa Marine SRT 595 Centre Cabin 2026 has a 130-hp advantage over the Formosa Marine GRT 455 Tiller 2027's 70-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Formosa Marine SRT 595 Centre Cabin 2026 carries 53 gallons versus 17 gallons in the Formosa Marine GRT 455 Tiller 2027. 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 Formosa Marine SRT 595 Centre Cabin 2026 is rated for 7 passengers, while the Formosa Marine GRT 455 Tiller 2027 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Formosa Marine SRT 595 Centre Cabin 2026 could be the deciding factor.

Bottom line: Choose the Formosa Marine SRT 595 Centre Cabin 2026 if your priority is putting more people on the water - it handles 7 passengers and at 19,7 ft it has the deck room to back that rating up comfortably. The Formosa Marine GRT 455 Tiller 2027 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.
General Boat Info
MakeFormosa Marine
MakeFormosa Marine
ModelGRT 455 Tiller
ModelSRT 595 Centre Cabin
Model Year2027
Model Year2026
Weight - Detail838 lbs. (380 kg)
Weight - Detail2152 lbs. (976 kg)
Weight - kg380
Weight - kg976
Weight - lbs.838
Weight - lbs.2152
Measurements / Dimensions
Length overall - DetailLength overall (excluding engine)
Length overall - DetailLength overall (excluding engine)
Length overall - Inches193.31
Length overall - Inches235.83
Length overall - Meters4.91
Length overall - Meters5.99
Length - Feet16.11
Length - Feet19.65
Beam83.86 in. (2.13 m)
Beam97.64 in. (2.48 m)
Beam - Inches83.86
Beam - Inches97.64
Beam - Meters2.13
Beam - Meters2.48
Weight - DetailDry hull
Weight - DetailDry hull
Weight - kg380
Weight - kg976
Weight - lbs.838
Weight - lbs.2152
Deadrise13°
Deadrise19°
Body / Hull
Hull materialAluminium plate
Hull materialAluminium plate
Hull typeV-Hull
Hull typeV-Hull
Engine and Drivetrain
Drive typeOutboard
Drive typeOutboard
Engine max70
Engine max200
Fuel tank capacity - Liters65
Fuel tank capacity - Liters200
Fuel tank capacity - Gal17.17
Fuel tank capacity - Gal52.83
Fuel tank capacity - Detail17.17 gal. (65 l)
Fuel tank capacity - Detail52.83 gal. (200 l)
Horsepower70
Horsepower200
Transom Shaft LengthLong
Transom Shaft LengthXL
Operational Info
Maximum people4
Maximum people7
Boat typeOpen / tiller steer
Boat typeWalk-around centre cabin
Warranty Info
Warranty4 year hull structure warranty
Warranty4 year hull structure warranty
Options / Other
Optionsnot available
OptionsOptional bait board and bait tank with window; optional transom casting cage and platform (single or twin).

Formosa Marine GRT 455 Tiller 2027 vs Formosa Marine SRT 595 Centre Cabin 2026 - Common Questions

Which is the larger boat - the Formosa Marine GRT 455 Tiller 2027 or the Formosa Marine SRT 595 Centre Cabin 2026?
The Formosa Marine SRT 595 Centre Cabin 2026 is the longer of the two at 19,7 feet overall. The Formosa Marine GRT 455 Tiller 2027 comes in at 16,1 feet, making it roughly 3,5 ft shorter - a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer - the Formosa Marine GRT 455 Tiller 2027 or the Formosa Marine SRT 595 Centre Cabin 2026?
For trailering, the Formosa Marine GRT 455 Tiller 2027 has the edge at 838 lbs dry weight versus 2 152 lbs for the Formosa Marine SRT 595 Centre Cabin 2026. 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 Formosa Marine SRT 595 Centre Cabin 2026 is rated to a maximum of 200 hp, giving it the larger power ceiling. The Formosa Marine GRT 455 Tiller 2027 tops out at 70 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 Formosa Marine GRT 455 Tiller 2027 is Coast Guard rated for 4 passengers, while the Formosa Marine SRT 595 Centre Cabin 2026 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.
Which boat is wider, and does it affect trailering?
The Formosa Marine SRT 595 Centre Cabin 2026 measures 98" wide, compared to 84" for the Formosa Marine GRT 455 Tiller 2027. 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 Formosa Marine GRT 455 Tiller 2027 or the Formosa Marine SRT 595 Centre Cabin 2026?
The Formosa Marine SRT 595 Centre Cabin 2026 has the bigger tank at 53 gallons, versus 17 gallons on the Formosa Marine GRT 455 Tiller 2027. That 35-gallon difference translates to roughly 106–178 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Formosa Marine GRT 455 Tiller 2027 and Formosa Marine SRT 595 Centre Cabin 2026 from the same manufacturer?
Yes - both the Formosa Marine GRT 455 Tiller 2027 and the Formosa Marine SRT 595 Centre Cabin 2026 are built by Formosa Marine. 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.