When two boats share the same hull type — in this case both the Berkshire Pontoons 263SLX 2010 and the Berkshire Pontoons STS 190CL - B 2013 are pontoon designs with aluminum construction — 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?
The Berkshire Pontoons 263SLX 2010 carries a rated maximum of 150 hp. Engine data for the Berkshire Pontoons STS 190CL - B 2013 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.
For family outings this is probably the sharpest distinction between the two. The Berkshire Pontoons 263SLX 2010 is rated for 14 passengers, while the Berkshire Pontoons STS 190CL - B 2013 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Berkshire Pontoons 263SLX 2010 could be the deciding factor.
One place where both boats are genuinely identical is tube construction: both run 2 aluminum tubes at 25" diameter. That shared spec means stability and buoyancy characteristics are closely matched — the ride difference you'll feel between them comes primarily from deck length, weight distribution, and motor choice.
Bottom line: Choose the Berkshire Pontoons 263SLX 2010 if your priority is putting more people on the water — it handles 14 passengers and at 28,0 ft it has the deck room to back that rating up comfortably. The Berkshire Pontoons STS 190CL - B 2013 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.