When two boats share the same hull type — in this case both the Avalon Windjammer - 20 Foot 2008 and the Avalon Windjammer Sandbar 2011 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?

Size is the most obvious dividing line here. The Avalon Windjammer Sandbar 2011 measures 26,0 feet overall (2011), giving it roughly 24,0 additional feet of deck space compared to the Avalon Windjammer - 20 Foot 2008 at 2,0 feet (2008). Weight tells a clearer story for trailering families: the Avalon Windjammer Sandbar 2011 tips the scales at 3 125 lbs — 2 938 lbs less than the Avalon Windjammer - 20 Foot 2008 at 187 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 300 hp, the Avalon Windjammer Sandbar 2011 has a 210-hp advantage over the Avalon Windjammer - 20 Foot 2008's 90-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Avalon Windjammer Sandbar 2011 carries 42 gallons versus 24 gallons in the Avalon Windjammer - 20 Foot 2008. 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 Avalon Windjammer Sandbar 2011 is rated for 17 passengers, while the Avalon Windjammer - 20 Foot 2008 caps at 9. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Avalon Windjammer Sandbar 2011 could be the deciding factor.