Supramax vs Ultramax

Supramax and Ultramax get lumped together as “the Handymax family,” and on a spec sheet they look like close cousins — a few thousand DWT apart, both geared, both built for the same general trade pattern. For a coastal or short-sea buyer, though, the difference that actually matters isn’t the deadweight gap, it’s the draft. This is a head-to-head for anyone choosing between them, alongside our broader bulk carrier size classes explainer.

The size and spec difference

“Ultramax” isn’t really a separate class so much as the newest, largest generation of Supramax-type tonnage — same geared, self-loading design philosophy, built bigger and more fuel-efficient. An eco-design Ultramax with four 36-tonne cranes can carry 5,000–10,000 tonnes more cargo than a standard Supramax on the same draught, with meaningfully lower fuel burn on a long-haul voyage.

Why Ultramax became the newbuild standard

Yards have shifted new orders toward Ultramax for a straightforward reason: 10–12% more cargo intake per voyage against only a modest increase in DWT, plus a fuel-efficient design that scores better under CII — a real advantage as compliance costs bite harder on ageing, less efficient tonnage. Beam has stayed close enough to the traditional Panamax limit that most Ultramax units retain the same broad port access a Supramax has, so the bigger ship isn’t trading away flexibility to get the extra capacity — mostly.

Tip: “Mostly” is the operative word. Ultramax’s deeper draft is the one place the extra capacity does cost you — a berth that comfortably takes a Supramax at full load can restrict an Ultramax to a part cargo. Check your actual load-port and discharge-port draft restrictions before assuming bigger is simply better for your trade.

Charter economics in 2026

The Baltic Supramax Index stood at around 1,644 points in late August 2026, with average daily earnings near USD 20,784 — the benchmark most Supramax fixtures are priced against. Recent Ultramax spot fixtures have run well above that: a 62,000 DWT Ultramax fixed US East Coast to Japan at around USD 34,500 a day, and a 63,000 DWT unit fixed US East Coast to Turkey at roughly USD 32,500. That gap is partly the extra cargo intake showing up directly in earnings, and partly route and timing — spot fixtures move on individual cargoes, not an index average — so treat it as directional rather than a guaranteed premium on every voyage.

Resale liquidity: the size band you can actually sell

Capacity and draft aren’t the only things that differ — so does how easy each class is to sell on. Supramax is the older, far more numerous class: decades of newbuild orders mean there’s a deep, liquid secondhand market with buyers in every region, and a wide spread of ages and specifications to compare against. Ultramax is younger and still concentrated in more recent build years, which cuts both ways — a buyer gets a more fuel-efficient, better CII-scoring fleet on average, but a narrower band of comparable resales to benchmark a price against, and a smaller pool of owners who specifically want that exact size. Neither is illiquid by bulk carrier standards, but if resale flexibility across a wide range of buyers matters more to you than squeezing out the last few percent of cargo intake, that leans toward Supramax.

What to check on a specific candidate

Once you’re comparing real ships rather than the two classes in the abstract, the same value drivers apply to both:

• Actual draft at your load and discharge ports — not the nominal figure, the real number at the berths you’ll actually call, loaded and in ballast.
• Crane condition and SWL, not just the headline tonnage — a tired crane rated at 35 tonnes on paper is not the same asset as a well-maintained one.
• Engine type and EEXI/CII standing — this is where the Supramax/Ultramax gap shows up most in day-to-day operating cost, and it varies within each class, not just between them.
• Charter history and counterparties — a ship with a clean, well-documented trading history is worth more than the spec sheet alone suggests.

Which one actually fits a coastal trade

For genuinely draft-restricted coastal and short-sea work — smaller regional ports, rivers, older berths — a Supramax’s shallower draft for its DWT is the more reliable fit, and the smaller size still carries the geared, self-loading flexibility that makes this size band useful in the first place. For longer-haul trades between deeper-draft ports, an Ultramax’s extra cargo intake and better fuel economy make it the stronger economic choice, and it’s increasingly what’s actually available as newbuild yards standardise on the larger design. Check the specific candidate’s value drivers and current bulk carrier market conditions before deciding, browse current bulk carriers for sale, or talk to a broker about a specific opportunity.