Luhrs 31 Hardtop 2007 boat specs
Luhrs
Luhrs 31 Hardtop 2007
2007
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VS
Luhrs 31 Open IPS 2008 boat specs
Luhrs
Luhrs 31 Open IPS 2008
2008
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Luhrs 31 Hardtop 2007 vs Luhrs 31 Open IPS 2008 — Same Brand, Different Boat

The Luhrs 31 Hardtop 2007 vs Luhrs 31 Open IPS 2008 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.

On paper these two are close siblings in the size department — Luhrs 31 Hardtop 2007 at 34,0 ft versus Luhrs 31 Open IPS 2008 at 34,0 ft. Weight tells a clearer story for trailering families: the Luhrs 31 Hardtop 2007 tips the scales at 135 lbs — 119 lbs more than the Luhrs 31 Open IPS 2008 at 16 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 380 hp, the Luhrs 31 Hardtop 2007 has a 120-hp advantage over the Luhrs 31 Open IPS 2008's 260-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Luhrs 31 Open IPS 2008 carries 31 gallons versus 3 gallons in the Luhrs 31 Hardtop 2007. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 10 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.

Bottom line: Performance buyers should lean toward the Luhrs 31 Hardtop 2007 and its 380-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Luhrs 31 Open IPS 2008 with its 260-hp rating is the more economical daily driver.
General Boat Info
MakeLuhrs
MakeLuhrs
Model31 Hardtop
Model31 Open IPS
Model Year2007
Model Year2008
Measurements / Dimensions
Beam11 ft. 10 in. (3.61 m)
Beam11 ft. 10 in. (3.61 m)
Beam - Meters3.61
Beam - Meters3.61
Beam - Inches142
Beam - Inches142
Bridge clearance - Detail9 ft. 7 in. (2.92 m)
Bridge clearance - Detail16 ft. 2 in. (4.93 m)
Bridge clearance - Meters2.92
Bridge clearance - Meters4.93
Bridge clearance - Inches115
Bridge clearance - Inches194
Deadrise19℃
Deadrise19℃
Draft [max] - Detail2 ft. 6 in. (0.76 m)
Draft [max] - Detail3 ft. (0.91 m)
Draft [max] - Meters0.76
Draft [max] - Meters0.91
Draft [max] - Inches3
Draft [max] - Inches36
Weight - Detail13,500 lbs. (6,126 kg)
Weight - Detail16,000 lbs. (7,264 kg)
Weight - kg6123.49
Weight - kg7257.47
Weight - lbs.135
Weight - lbs.16
Length - Meters10.47
Length - Meters10.47
Length - Feet34
Length - Feet34
Length - Inches4
Length - Inches4
Length overall - Detail34 ft. 4 in. (10.47 m)
Length overall - Detail34 ft. 4 in. (10.47 m) Length Less Pulpit: 31 ft. 5 in. (9.58 m)
Length overall - Meters10.46
Length overall - Meters10.46
Length overall - Inches412
Length overall - Inches412
Body / Hull
Hull materialFiberglass
Hull materialFiberglass
Hull typenot available
Hull typeDeep Vee
Engine and Drivetrain
Engine/s standardCrusader 6.0L 375 hp
Engine/s standardT-Volvo IPS 35
Fuel tank capacity - Detail300 gal. (1,136 l)
Fuel tank capacity - Detail310 gal. (1,173 l)
Fuel tank capacity - Liters1135.62
Fuel tank capacity - Liters1173.48
Fuel tank capacity - Gal3
Fuel tank capacity - Gal31
Fuel typeGas or Diesel
Fuel typeDiesel
Drive typeInboard - Twin
Drive typeInboard - Twin
Engine max380 hp
Engine max260 hp (194 kW)
Operational Info
HeadElectrical
Headnot available
Headroom6 ft. 3 in. (1.9 m)
Headroom6 ft. 3 in. (1.9 m)
Sleeping capacity4
Sleeping capacity4
Water capacity50 gal. (189 l)
Water capacity45 gal. (170 l)
Holding tank capacity - DetailHead: 25 gal. (94.64 l)
Holding tank capacity - Detailnot available
Holding tank capacity - Liters94.64
Holding tank capacity - Litersnot available
Holding tank capacity - Gal25
Holding tank capacity - Galnot available

Luhrs 31 Hardtop 2007 vs Luhrs 31 Open IPS 2008 — Common Questions

Which is the larger boat — the Luhrs 31 Hardtop 2007 or the Luhrs 31 Open IPS 2008?
The Luhrs 31 Open IPS 2008 is the longer of the two at 34,0 feet overall. The Luhrs 31 Hardtop 2007 comes in at 34,0 feet, making it roughly 0,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Luhrs 31 Hardtop 2007 or the Luhrs 31 Open IPS 2008?
For trailering, the Luhrs 31 Open IPS 2008 has the edge at 16 lbs dry weight versus 135 lbs for the Luhrs 31 Hardtop 2007. 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 Luhrs 31 Hardtop 2007 is rated to a maximum of 380 hp, giving it the larger power ceiling. The Luhrs 31 Open IPS 2008 tops out at 260 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 Luhrs 31 Hardtop 2007 is Coast Guard rated for 10 passengers, while the Luhrs 31 Open IPS 2008 is certified for 10. 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.
Do these boats require an oversize trailer permit to tow on US highways?
Both the Luhrs 31 Hardtop 2007 and Luhrs 31 Open IPS 2008 share an 11 ft. 10 in. (3.61 m) beam — meaning both sit right at the 8’6" threshold that most US states use for standard-width loads. In most states you can tow at that width without a special permit, but regulations vary. Always check the rules for your state and any states you'll be passing through before your first long haul.
Which boat has the larger fuel tank — the Luhrs 31 Hardtop 2007 or the Luhrs 31 Open IPS 2008?
The Luhrs 31 Open IPS 2008 has the bigger tank at 31 gallons, versus 3 gallons on the Luhrs 31 Hardtop 2007. That 28-gallon difference translates to roughly 84–140 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Luhrs 31 Hardtop 2007 and Luhrs 31 Open IPS 2008 from the same manufacturer?
Yes — both the Luhrs 31 Hardtop 2007 and the Luhrs 31 Open IPS 2008 are built by Luhrs. 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.