Both the Avalon Catalina 16 ft. 2010 and the Avalon Sandbar 2009 are pontoon designs, both built in aluminium, 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?
Size is the most obvious dividing line here. The Avalon Sandbar 2009 measures 26,0 feet overall (2009), giving it roughly 10,0 additional feet of deck space compared to the Avalon Catalina 16 ft. 2010 at 16,0 feet (2010). Weight tells a clearer story for trailering families: the Avalon Sandbar 2009 tips the scales at 3 125 lbs - 1 775 lbs less than the Avalon Catalina 16 ft. 2010 at 1 350 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 250 hp, the Avalon Sandbar 2009 has a 200-hp advantage over the Avalon Catalina 16 ft. 2010's 50-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
For family outings this is probably the sharpest distinction between the two. The Avalon Sandbar 2009 is rated for 17 passengers, while the Avalon Catalina 16 ft. 2010 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Avalon Sandbar 2009 could be the deciding factor.
Both are 2-tube and 3-tube pontoon designs respectively. Tube diameter and gauge affect stability and load capacity - more so than most buyers realize when comparing on paper.
Bottom line: Choose the Avalon Sandbar 2009 if your priority is putting more people on the water - it handles 17 passengers and at 26,0 ft it has the deck room to back that rating up comfortably. The Avalon Catalina 16 ft. 2010 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.