Bertram 37 Convertible 1987 boat specs
Bertram
Bertram 37 Convertible 1987
1987
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VS
Bertram Convertible 1985 boat specs
Bertram
Bertram Convertible 1985
1985
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Bertram 37 Convertible 1987 vs Bertram Convertible 1985 — Same Brand, Different Boat

The Bertram 37 Convertible 1987 vs Bertram Convertible 1985 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.

The power gap is worth calling out. Rated to 465 hp, the Bertram Convertible 1985 has a 90-hp advantage over the Bertram 37 Convertible 1987's 375-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Bertram 37 Convertible 1987 carries 47 gallons versus 3 gallons in the Bertram Convertible 1985. 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 Bertram Convertible 1985 is rated for 12 passengers, while the Bertram 37 Convertible 1987 caps at 11. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Bertram Convertible 1985 could be the deciding factor.

Bottom line: Choose the Bertram Convertible 1985 if your priority is putting more people on the water — it handles 12 passengers and at 42,0 ft it has the deck room to back that rating up comfortably. The Bertram 37 Convertible 1987 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 11 that costs less to run day-to-day.
Measurements / Dimensions
Length overall - Detail37.00 ft
Length overall - Detail42.00 ft
Length - Feet37
Length - Feet42
Length overall - Meters11.28
Length overall - Meters12.8
Length overall - Inches444
Length overall - Inches504
Draft [max] - Detail4.17 ft
Draft [max] - Detailnot available
Draft [max] - Meters1.27
Draft [max] - Metersnot available
Draft [max] - Inches50
Draft [max] - Inchesnot available
Engine and Drivetrain
Fuel tank capacity - Gal47
Fuel tank capacity - Gal3
Fuel tank capacity - Liters1779.14
Fuel tank capacity - Liters1135.62
Engine makeCaterpillar
Engine makeDetroit Diesel
Horsepower375 hp
Horsepower465 hp
Fuel typeDiesel
Fuel typeDiesel
Drive typeinboard
Drive typeinboard
Operational Info
Sleeping capacity2
Sleeping capacitynot available
Cabins2
Cabins2
Head1
Head1
Water capacity1
Water capacity15
Holding tank capacity - Gal3
Holding tank capacity - Gal4
Holding tank capacity - Liters113.56
Holding tank capacity - Liters151.42
Boat typePower
Boat typePower

Bertram 37 Convertible 1987 vs Bertram Convertible 1985 — Common Questions

Which is the larger boat — the Bertram 37 Convertible 1987 or the Bertram Convertible 1985?
The Bertram Convertible 1985 is the longer of the two at 42,0 feet overall. The Bertram 37 Convertible 1987 comes in at 37,0 feet, making it roughly 5,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which boat can handle a bigger outboard?
The Bertram Convertible 1985 is rated to a maximum of 465 hp, giving it the larger power ceiling. The Bertram 37 Convertible 1987 tops out at 375 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 Bertram 37 Convertible 1987 is Coast Guard rated for 11 passengers, while the Bertram Convertible 1985 is certified for 12. 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 has the larger fuel tank — the Bertram 37 Convertible 1987 or the Bertram Convertible 1985?
The Bertram 37 Convertible 1987 has the bigger tank at 47 gallons, versus 3 gallons on the Bertram Convertible 1985. That 44-gallon difference translates to roughly 132–220 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Bertram 37 Convertible 1987 and Bertram Convertible 1985 from the same manufacturer?
Yes — both the Bertram 37 Convertible 1987 and the Bertram Convertible 1985 are built by Bertram. 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.