When two boats share the same hull type — in this case both the Weldcraft Marine 240 Ocean King 2013 and the Weldcraft Marine 280 2009 are deep vee 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 — Weldcraft Marine 240 Ocean King 2013 at 26,0 ft versus Weldcraft Marine 280 2009 at 28,0 ft. Weight tells a clearer story for trailering families: the Weldcraft Marine 240 Ocean King 2013 tips the scales at 3 325 lbs — 3 280 lbs more than the Weldcraft Marine 280 2009 at 45 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 500 hp, the Weldcraft Marine 280 2009 has a 150-hp advantage over the Weldcraft Marine 240 Ocean King 2013's 350-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Weldcraft Marine 240 Ocean King 2013 carries 127 gallons versus 16 gallons in the Weldcraft Marine 280 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 Weldcraft Marine 280 2009 is rated for 8 passengers, while the Weldcraft Marine 240 Ocean King 2013 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Weldcraft Marine 280 2009 could be the deciding factor.
Bottom line: Choose the Weldcraft Marine 280 2009 if your priority is putting more people on the water — it handles 8 passengers and at 28,0 ft it has the deck room to back that rating up comfortably. The Weldcraft Marine 240 Ocean King 2013 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 7 that costs less to run day-to-day.