The Beneteau Oceanis 45 2011 vs Beneteau Oceanis 48 2011 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.
On paper these two are close siblings in the size department — Beneteau Oceanis 45 2011 at 45,9 ft versus Beneteau Oceanis 48 2011 at 47,1 ft. Weight tells a clearer story for trailering families: the Beneteau Oceanis 48 2011 tips the scales at 27 765 lbs — 4 508 lbs less than the Beneteau Oceanis 45 2011 at 23 257 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 75 hp, the Beneteau Oceanis 48 2011 has a 21-hp advantage over the Beneteau Oceanis 45 2011's 54-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads — 53 gal and 53 gal — so range won't be a tiebreaker here.
For family outings this is probably the sharpest distinction between the two. The Beneteau Oceanis 48 2011 is rated for 14 passengers, while the Beneteau Oceanis 45 2011 caps at 13. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Beneteau Oceanis 48 2011 could be the deciding factor.
Displacement is where these two sailboats genuinely part ways. The Beneteau Oceanis 48 2011 displaces 27 765 lbs — a 4 508-lb difference over the Beneteau Oceanis 45 2011 at 23 257 lbs. That gap separates two entirely different categories of sailing: the heavier boat is built for offshore passage-making and load-carrying, while the lighter hull rewards performance sailing and easier handling in lighter air.
Both boats draw a similar depth — 7,5 ft and 7,1 ft respectively. Marina access and anchorage options should be broadly equivalent between the two.
The Beneteau Oceanis 45 2011 uses Sloop rigging. For auxiliary power the Beneteau Oceanis 48 2011 carries a 75-hp engine against 54 hp on the Beneteau Oceanis 45 2011. Motoring range and ability to punch through a foul current or enter a tight marina under power will favour the more powerful installation.
Hull speed is rated at 9,0 knots for the Beneteau Oceanis 48 2011 and 8,7 knots for the Beneteau Oceanis 45 2011.
Bottom line: The Beneteau Oceanis 48 2011 is the offshore and bluewater choice — at 27 765 lbs displacement and 47 ft it has the load capacity, range, and seakeeping for extended passages. The Beneteau Oceanis 45 2011 at 23 257 lbs is the more nimble, accessible option — easier to single-hand and better suited to coastal and inland sailing.