When two boats share the same hull type — in this case both the Berkshire Pontoons 180 CL LTD 2011 and the Berkshire Pontoons CTS 170CL 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?
On paper these two are close siblings in the size department — Berkshire Pontoons 180 CL LTD 2011 at 19,8 ft versus Berkshire Pontoons CTS 170CL 2013 at 17,7 ft. Weight tells a clearer story for trailering families: the Berkshire Pontoons 180 CL LTD 2011 tips the scales at 1 505 lbs — 1 340 lbs more than the Berkshire Pontoons CTS 170CL 2013 at 165 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.
Both boats share a closely matched power ceiling — 75 hp for the Berkshire Pontoons 180 CL LTD 2011 and 60 hp for the Berkshire Pontoons CTS 170CL 2013. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup.
For family outings this is probably the sharpest distinction between the two. The Berkshire Pontoons 180 CL LTD 2011 is rated for 9 passengers, while the Berkshire Pontoons CTS 170CL 2013 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Berkshire Pontoons 180 CL LTD 2011 could be the deciding factor.
One place where both boats are genuinely identical is tube construction: both run 2 aluminum tubes at 23" 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 180 CL LTD 2011 if your priority is putting more people on the water — it handles 9 passengers and at 19,8 ft it has the deck room to back that rating up comfortably. The Berkshire Pontoons CTS 170CL 2013 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 8 that costs less to run day-to-day.