Bayliner 180 OB 2011 boat specs
Bayliner
Bayliner 180 OB 2011
2011
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VS
Bayliner 305 Cruiser 2007 boat specs
Bayliner
Bayliner 305 Cruiser 2007
2007
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Bayliner 180 OB 2011 vs Bayliner 305 Cruiser 2007 — Same Brand, Different Boat

The Bayliner 180 OB 2011 vs Bayliner 305 Cruiser 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 Bayliner 305 Cruiser 2007 measures 31,0 feet overall (2007), giving it roughly 13,0 additional feet of deck space compared to the Bayliner 180 OB 2011 at 18,0 feet (2011). Weight tells a clearer story for trailering families: the Bayliner 180 OB 2011 tips the scales at 1 878 lbs — 793 lbs more than the Bayliner 305 Cruiser 2007 at 1 085 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 Bayliner 305 Cruiser 2007 has a 175-hp advantage over the Bayliner 180 OB 2011's 125-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Bayliner 305 Cruiser 2007 carries 157 gallons versus 23 gallons in the Bayliner 180 OB 2011. 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 Bayliner 305 Cruiser 2007 is rated for 9 passengers, while the Bayliner 180 OB 2011 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Bayliner 305 Cruiser 2007 could be the deciding factor.

Bottom line: Choose the Bayliner 305 Cruiser 2007 if your priority is putting more people on the water — it handles 9 passengers and at 31,0 ft it has the deck room to back that rating up comfortably. The Bayliner 180 OB 2011 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
MakeBayliner
MakeBayliner
Model180 OB
Model305 Cruiser
Model Year2011
Model Year2007
Measurements / Dimensions
Beam7 ft. 6 in. (2.29 m)
Beam11 ft. 0 in. (3.35 m)
Beam - Meters2.29
Beam - Meters3.35
Beam - Inches9
Beam - Inches132
Bridge clearance - Detail3 ft. 10 in. (1.17 m)
Bridge clearance - DetailMax: 9 ft. 7 in. (2.92 m)
Bridge clearance - Meters1.17
Bridge clearance - Meters2.92
Bridge clearance - Inches46
Bridge clearance - Inches115
Deadrise17°
Deadrise21℃
Draft [drive up] - Detail1 ft. 2 in. (0.36 m)
Draft [drive up] - Detail1 ft. 9 in. (0.53 m)
Draft [drive up] meters0.36
Draft [drive up] meters0.53
Draft [drive up] inches14
Draft [drive up] inches21
Draft [max] - Detail2 ft. 7 in. (0.79 m)
Draft [max] - Detail2 ft. 9 in. (0.84 m)
Draft [max] - Meters0.79
Draft [max] - Meters0.84
Draft [max] - Inches31
Draft [max] - Inches33
Weight - Detail1,878 lbs. (852 kg)
Weight - Detail10,850 lbs. (4,922 kg)
Weight - kg851.85
Weight - kg4921.47
Weight - lbs.1878
Weight - lbs.1085
Height - Detail6 ft. 0 in. (1.83 m) rigged
Height - Detailnot available
Height - Meters1.83
Height - Metersnot available
Height - Inches72
Height - Inchesnot available
Length - Feet18
Length - Feet31
Length overall - Detail18 ft. 0 in. (5.49 m)
Length overall - Detail31 ft. 6 in. (9.60 m) Rigged: 32 ft. 2 in. (9.80 m)
Length overall - Meters5.49
Length overall - Meters9.8
Length overall - Inches216
Length overall - Inches386
Length - Metersnot available
Length - Meters9.6
Length - Inchesnot available
Length - Inches6
Body / Hull
Hull materialFiberglass
Hull materialFiberglass
Hull typeDeep Vee
Hull typenot available
Engine and Drivetrain
Max no of engines1
Max no of enginesnot available
Engine makeMercury
Engine makenot available
Engine model90 Optimax DFI
Engine modelnot available
Engine/s standard90 hp
Engine/s standardT-5.0L MerCruiser® Bravo® II (T-220 hp)
Fuel tank capacity - Detail23 gal. (87 l)
Fuel tank capacity - Detail157 gal. (594.2 l)
Fuel tank capacity - Liters87.06
Fuel tank capacity - Liters594.31
Fuel tank capacity - Gal23
Fuel tank capacity - Gal157
Fuel typeGas
Fuel typeGas or Diesel
Drive typeOutboard
Drive typeI/O
Engine max125 hp
Engine max300 hp
Operational Info
Maximum people7
Maximum peoplenot available
Water capacitynot available
Water capacity35 gal. (132.5 l)
Holding tank capacity - Detailnot available
Holding tank capacity - Detail30 gal. (113.6 l)
Holding tank capacity - Litersnot available
Holding tank capacity - Liters113.56
Holding tank capacity - Galnot available
Holding tank capacity - Gal3
Trailer Info
Trailer - Length over all20 ft. 9 in. (6.32 m)
Trailer - Length over allnot available
Trailer - Weight2,315 lbs. (1,050.1 kg)
Trailer - Weightnot available

Bayliner 180 OB 2011 vs Bayliner 305 Cruiser 2007 — Common Questions

Which is the larger boat — the Bayliner 180 OB 2011 or the Bayliner 305 Cruiser 2007?
The Bayliner 305 Cruiser 2007 is the longer of the two at 31,0 feet overall. The Bayliner 180 OB 2011 comes in at 18,0 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 Bayliner 180 OB 2011 or the Bayliner 305 Cruiser 2007?
For trailering, the Bayliner 305 Cruiser 2007 has the edge at 1 085 lbs dry weight versus 1 878 lbs for the Bayliner 180 OB 2011. 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 Bayliner 305 Cruiser 2007 is rated to a maximum of 300 hp, giving it the larger power ceiling. The Bayliner 180 OB 2011 tops out at 125 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 Bayliner 180 OB 2011 is Coast Guard rated for 7 passengers, while the Bayliner 305 Cruiser 2007 is certified for 9. 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 Bayliner 305 Cruiser 2007 measures 132" wide, compared to 9" for the Bayliner 180 OB 2011. 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 Bayliner 180 OB 2011 or the Bayliner 305 Cruiser 2007?
The Bayliner 305 Cruiser 2007 has the bigger tank at 157 gallons, versus 23 gallons on the Bayliner 180 OB 2011. That 134-gallon difference translates to roughly 402–670 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Bayliner 180 OB 2011 and Bayliner 305 Cruiser 2007 from the same manufacturer?
Yes — both the Bayliner 180 OB 2011 and the Bayliner 305 Cruiser 2007 are built by Bayliner. 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.