SeaArk 1548SLD 2007 boat specs
SeaArk
SeaArk 1548SLD 2007
2007
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VS
SeaArk Forecast 156 2008 boat specs
SeaArk
SeaArk Forecast 156 2008
2008
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SeaArk 1548SLD 2007 vs SeaArk Forecast 156 2008 — Same Brand, Different Boat

The SeaArk 1548SLD 2007 vs SeaArk Forecast 156 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 — SeaArk 1548SLD 2007 at 15,0 ft versus SeaArk Forecast 156 2008 at 15,0 ft. Weight tells a clearer story for trailering families: the SeaArk 1548SLD 2007 tips the scales at 355 lbs — 287 lbs more than the SeaArk Forecast 156 2008 at 68 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 SeaArk Forecast 156 2008 tops out at 40 hp. Engine specs for the SeaArk 1548SLD 2007 aren't listed — confirm with a dealer before selecting an outboard.

Both boats are rated for 4 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: The SeaArk 1548SLD 2007 and SeaArk Forecast 156 2008 are closely matched on the specs that matter most. Test-ride both on the water you actually use, check current dealer pricing, and factor in long-term service access before you sign.
General Boat Info
MakeSeaArk
MakeSeaArk
Model1548SLD
ModelForecast 156
Model Year2007
Model Year2008
Measurements / Dimensions
Beam67 in
Beam71 in
Beam - Meters1.7
Beam - Meters1.8
Beam - Inches67
Beam - Inches71
Depth - Detail20 in
Depth - Detail21 in
Depth - Centimeters50.8
Depth - Centimeters53.34
Depth - Inches2
Depth - Inches21
Weight - Detail355 lbs
Weight - Detail680 lbs
Weight - kg161.03
Weight - kg308.44
Weight - lbs.355
Weight - lbs.68
Width [transom] - Detail48 in
Width [transom] - Detail50 in
Height [transom]15 / 20 in
Height [transom]20 in
Length - Feet15
Length - Feet15
Length overall - Detail15 ft. 0 in
Length overall - Detail15 ft. 6 in
Length overall - Meters4.57
Length overall - Meters4.72
Length overall - Inches18
Length overall - Inches186
Length - Inchesnot available
Length - Inches6
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull thickness0.100 in
Hull thickness0.1
Hull typenot available
Hull typeModified Vee
Engine and Drivetrain
Engine/s standard40 hp
Engine/s standardnot available
Fuel typeGas
Fuel typeGas
Drive typeOutboard
Drive typeOutboard
Fuel tank capacity - Detailnot available
Fuel tank capacity - Detail15 gal
Fuel tank capacity - Litersnot available
Fuel tank capacity - Liters56.78
Fuel tank capacity - Galnot available
Fuel tank capacity - Gal15
Engine maxnot available
Engine max40 hp
Operational Info
Maximum capacity830 lbs
Maximum capacity875 lbs
Maximum people4
Maximum people4 / 510 lbs

SeaArk 1548SLD 2007 vs SeaArk Forecast 156 2008 — Common Questions

Which is the larger boat — the SeaArk 1548SLD 2007 or the SeaArk Forecast 156 2008?
The SeaArk Forecast 156 2008 is the longer of the two at 15,0 feet overall. The SeaArk 1548SLD 2007 comes in at 15,0 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 SeaArk 1548SLD 2007 or the SeaArk Forecast 156 2008?
For trailering, the SeaArk Forecast 156 2008 has the edge at 68 lbs dry weight versus 355 lbs for the SeaArk 1548SLD 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.
What is the maximum horsepower rating for these boats?
The SeaArk Forecast 156 2008 has a documented max rating of 40 hp. Engine specifications for the SeaArk 1548SLD 2007 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 SeaArk 1548SLD 2007 is Coast Guard rated for 4 passengers, while the SeaArk Forecast 156 2008 is certified for 4. 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 SeaArk Forecast 156 2008 measures 71" wide, compared to 67" for the SeaArk 1548SLD 2007. 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.
Are the SeaArk 1548SLD 2007 and SeaArk Forecast 156 2008 from the same manufacturer?
Yes — both the SeaArk 1548SLD 2007 and the SeaArk Forecast 156 2008 are built by SeaArk. 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.