Matching a modified vee Weld-Craft Duck 2013 against a deep vee Weldcraft Marine 18 SJ 2010 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.
Size is the most obvious dividing line here. The Weldcraft Marine 18 SJ 2010 measures 18,1 feet overall (2010), giving it roughly 3,1 additional feet of deck space compared to the Weld-Craft Duck 2013 at 15,0 feet (2013). Weight tells a clearer story for trailering families: the Weldcraft Marine 18 SJ 2010 tips the scales at 205 lbs — 179 lbs less than the Weld-Craft Duck 2013 at 26 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 Weld-Craft Duck 2013 carries a rated maximum of 25 hp. Engine data for the Weldcraft Marine 18 SJ 2010 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.
For family outings this is probably the sharpest distinction between the two. The Weldcraft Marine 18 SJ 2010 is rated for 6 passengers, while the Weld-Craft Duck 2013 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Weldcraft Marine 18 SJ 2010 could be the deciding factor.
Bottom line: Choose the Weldcraft Marine 18 SJ 2010 if your priority is putting more people on the water — it handles 6 passengers and at 18,1 ft it has the deck room to back that rating up comfortably. The Weld-Craft Duck 2013 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.