August 21, 2026
The Sanlorenzo 44X-Space: The Aft Deck That Grows by 18 Square Metres
Sanlorenzo's 44X-Space crosses a classic navetta with explorer resilience across five decks — 496 GT, twin MAN D2862-LE489s, and an aft open…
Read the articleSanlorenzo 44X-Space
Expert Review, Technical Specifications & Market Analysis
The Essentials
| Feature | Specifications |
|---|---|
| Overall Length | 143' 4" (43.7 m) |
| Beam | 28' 10" (8.80 m) |
| Draft | 9' 2" (2.80 m) |
| Displacement | 496 GT (gross tonnage — Sanlorenzo publishes no displacement figure) |
| Engines | 2 × MAN D2862-LE489, 1,066 kW (1,430 HP) each |
| Fuel Capacity | 13,209 US gallons (50,000 L) |
| Cabins / Heads | 10 guests / 8 crew |
| Max Speed | 15 knots |
Source: Spec & Photos courtesy of Sanlorenzo. Specs verified by Tony Smith, USCG 100 Ton Master, on August 20, 2026.
Part of the Sanlorenzo X-Space series — see how owners step up through the lineup.
Quick Verdict
- 496 GT across five decks on a 143'4" hull — Sanlorenzo held the smaller of its two X-Space superyachts just under the 500-GT mark
- The aft open-air living room opens by a further 18 square metres on folding balconies, which is the yard's own figure and the reason this model exists
- Twin MAN D2862-LE489s at 1,066 kW (1,430 HP) each for a published 15 knots, with 50,000 litres of fuel, 10 guests and 8 crew
Our Take
The 44X-Space is for an owner who has decided that volume matters more than length. Sanlorenzo describes it as a classic navetta crossed with the adventurous spirit and resilience of an explorer, and across five decks on a 43.70-metre hull that is a fair description of what you get. The feature that earns the name is the aft deck — an open-air living room that opens by a further 18 square metres on folding balconies. That is the yard's own number, and it is the single thing separating this hull from every other navetta of its length.
The figures worth holding on to: 496 gross tons on 143 feet 4 inches, twin MAN D2862-LE489s at 1,066 kW — 1,430 horsepower — each, a published maximum of 15 knots, 50,000 litres of fuel, ten guests and eight crew. The 496 GT is deliberate and it is not trivia. Staying under 500 changes the regime a yacht is certified and manned to, and Sanlorenzo engineered five decks of volume right up to that line rather than through it. Note the eight crew against ten guests too — that is a properly staffed boat, not a lean one.
What I would not do is plan around numbers Sanlorenzo has not published, and on this fleet that is a long list: no cruise speed, no range, no fresh water capacity, no displacement. The 2.80-metre draft comes off the yard's own archived X-Space page rather than the current one. So any range figure attached to this boat did not come from the builder. Get the sea trial sheet, take the observed burn at the speed you actually intend to hold, and do the arithmetic against the 50,000-litre tank with a real reserve. And be honest with yourself about the mission: if what you want is this much volume plus the ability to go somewhere genuinely remote and stay there, the 500Exp is eleven feet longer, carries 65,000 litres, and was drawn from the keel up for exactly that job.
Watch Our Sanlorenzo 44X-Space Reviews
Official Sanlorenzo Premiere: Inside the Sanlorenzo 44X-Space
Video courtesy of Sanlorenzo.
Sanlorenzo 44X-Space Photo Gallery
Photos courtesy of Sanlorenzo.
Sanlorenzo 44X-Space Articles & Guides
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Frequently Asked Questions
How is the Sanlorenzo 44X-Space laid out for guests and crew?
Ten guests and eight crew, across five decks. Sanlorenzo publishes guest and crew numbers rather than cabin counts, so the specific stateroom arrangement is settled in the build specification for each hull rather than fixed by the model.
The layout's signature is the aft area. Sanlorenzo describes the open-air living space there as expanding by a further 18 square metres through folding balconies, opening it into the interior alongside. That is the practical reason the yard fitted 496 GT of volume inside a 43.7-metre hull — the aft end does work that a longer yacht would need extra length for. Beam is 8.80 metres (28 feet 10 inches).
What is the top speed of the Sanlorenzo 44X-Space?
Fifteen knots, on twin MAN D2862-LE489 engines rated 1,066 kW (1,430 hp) each. That is the only propulsion package Sanlorenzo publishes for the model, and fifteen knots is the maximum — the yard publishes no cruise speed for the 44X-Space.
Read that number against what the boat is. At 43.7 metres (143 feet 4 inches) and 496 GT across five decks, the 44X-Space is a navetta with explorer intent rather than a fast planing yacht, and it carries 50,000 litres (13,209 US gallons) of fuel to suit. Speed is not the argument here; volume is, and how much of it opens to the outside.
Does Sanlorenzo publish a range for the 44X-Space?
No. Sanlorenzo publishes no range figure and no cruise speed for the 44X-Space, so there is no honest way to state how far it will go. What the yard does publish is fuel capacity — 50,000 litres, or 13,209 US gallons — and a maximum of 15 knots.
Two other cells are blank for the same reason: fresh water capacity, which Sanlorenzo does not publish for this model, and displacement, because the yard publishes gross tonnage instead. The 496 GT figure measures enclosed volume, not weight. Draft at full load is 2.80 metres (9 feet 2 inches), a figure from Sanlorenzo's own X-Space page rather than its current fleet listing. For a real distance figure, the sea trial report for a specific hull is the document that carries observed fuel burn at each rpm step.
44X-Space or 50X-Space — which one suits my programme?
Guest numbers and how much certainty you need. The 44X-Space carries ten guests and eight crew at 43.7 metres (143 feet 4 inches) and 496 GT, and it is a live model on Sanlorenzo's own current fleet page. The 50X-Space carries twelve guests and nine crew at 50 metres (164 feet 1 inch) and 499 GT — and exists so far as design and renderings, with no delivered hull.
Both sit deliberately below 500 GT and both use twin MAN D2862-LE489s, so the step up buys volume and berths rather than pace: 15 knots against 16. The 50X-Space is also the model Sanlorenzo named to debut its bi-fuel green methanol propulsion, so if that programme matters, it points one way. If you want to stand on a finished boat first, the 44X-Space is the one that exists.