Both the Eastern 20 2011 and the Eastern Eastern 18 2009 are modified-V designs, both built in fibreglass, so 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 - Eastern 20 2011 at 20,2 ft versus Eastern Eastern 18 2009 at 18,3 ft. Weight tells a clearer story for trailering families: the Eastern 20 2011 tips the scales at 1 500 lbs - 275 lbs more than the Eastern Eastern 18 2009 at 1 225 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 Eastern 20 2011 carries a rated maximum of 90 hp. Engine data for the Eastern Eastern 18 2009 wasn't available in our records - check the manufacturer's spec sheet before sizing a motor.Fuel capacity breaks the other way: the Eastern 20 2011 carries 40 gallons versus 25 gallons in the Eastern Eastern 18 2009. 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 Eastern 20 2011 is rated for 6 passengers, while the Eastern Eastern 18 2009 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Eastern 20 2011 could be the deciding factor.
Bottom line: Choose the Eastern 20 2011 if your priority is putting more people on the water - it handles 6 passengers and at 20,2 ft it has the deck room to back that rating up comfortably. The Eastern Eastern 18 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.