Most yachts in the 140-foot class ask you to choose between the volume and easy motion of a navetta and the reach and toughness of an explorer. The Sanlorenzo 44X-Space is built on the argument that you should not have to choose at all.
Who it's for
This is a yacht for the owner who has worked out that what they actually want is volume, not length. Five decks on a 43.70-metre hull, ten guests and eight crew, and 496 gross tons of it — held deliberately just under the 500-GT mark rather than pushed through it.
It is not a yacht for anyone shopping on speed. Sanlorenzo publishes a maximum of 15 knots and nothing above it, and the whole design argument runs the other way: space, shelter and time at anchor rather than time on passage.
It suits an owner who entertains on board and wants the entertaining to happen outdoors. That sounds like a small distinction until you see how much of this boat is organised around it.
What Sanlorenzo actually built
The yard's own description is the right place to start. Measuring 44 metres with five expansive decks, the 44X-Space is designed with Sanlorenzo's signature refined lines, and its design blends the essence of a classic navetta with the adventurous spirit and resilience of an Explorer vessel.
That is a more specific claim than it first appears. A navetta gives you the full-volume, near-vertical-sided superstructure that produces interior space at modest speed. Explorer styling and construction give you the robustness to use it somewhere other than a summer Mediterranean. The X-Space line — this hull and the larger 50X-Space — is where Sanlorenzo puts the two together.
The aft deck, and the 18 square metres
The 44X-Space offers extraordinary volume, headlined by its spacious aft area. That open-air living area can expand by an additional 18 square metres through folding balconies, creating a connection with the adjacent interior spaces. Those are the yard's words and the yard's number.
Eighteen square metres is roughly 194 square feet. On a yacht with an 8.80-metre beam, that is not a garnish — it is the difference between an aft deck you pass through and an aft deck the whole boat lives on. Deploy both sides at anchor and the usable width of that space goes well beyond the beam of the hull.
It is worth being clear-eyed about what folding balconies are. They are structural, hydraulic and class-approved, and they are the most mechanically interesting thing on the boat. That makes them the first thing to ask detailed questions about, not the last.
Performance: what Sanlorenzo publishes
Twin MAN D2862-LE489 diesels, 1,066 kW each — 1,430 horsepower apiece. Maximum speed 15 knots. Fuel 50,000 litres, or 13,209 US gallons. Gross tonnage 496. Length overall 43.70 metres: 143 feet 4 inches. Beam 8.80 metres: 28 feet 10 inches. Ten guests, eight crew.
Draft at full load is 2.80 metres, and that figure comes from Sanlorenzo's own archived X-Space page rather than the current fleet page, which no longer publishes it.
Sanlorenzo publishes no cruise speed, no range, no fresh water capacity and no displacement — not for this model and not for any model in its fleet. The 496 GT is gross tonnage, a measure of enclosed volume, not a weight. Any figure you have seen for those four missing numbers came from somewhere other than the builder.
That matters most for range. There is no published range for the 44X-Space. What there is instead is better: a published tank of 50,000 litres and, on the hull you are actually buying, an observed fuel burn from the sea trial. Those two numbers give you a range you can defend to your captain and your insurer.
Ownership: the questions worth asking
Ask for the sea trial report with fuel burn at every rpm step, then do the range arithmetic yourself with a genuine reserve. On a boat with no published cruise speed, that is not diligence — it is the only way to get the number at all.
Ask for the build specification: draft, fresh water capacity, tank arrangement, weights, and the hull and superstructure materials for the specific hull. All of those are things Sanlorenzo does not publish on the model page.
Ask what 496 GT means in practice for the hull you are buying — the certification regime it was built and surveyed to, and the manning it carries. Sitting under 500 GT is a real engineering decision, not a marketing line, and you want to understand what it bought and what it cost.
Ask about the balconies: deployment time, the sea states and conditions in which they may be used, seal and hydraulic service intervals, and what the class approval actually covers. This is the model's signature feature and it should be the best-documented system on board.
Where to start
The 44X-Space is a strong answer to a specific question: how do you get five decks of superyacht living and an outdoor room to match, without going past 500 gross tons. If that is your question, very few yachts of this length answer it as directly.
Start with the trial sheet and the build specification, and treat any range figure you have read as a rumour until your own arithmetic replaces it.
Talk it through with Tony Smith — TS@MintedYachts.com or +1 (404) 805-9819 — or send the form on this page and we will come back with the yard's own documents.