Bulk carrier classes
Capesize
100,000+ dwt
Long-haul iron ore and coal; too large for the Panama Canal in most trades.
Panamax / Kamsarmax
65,000–100,000 dwt
Workhorse of the coal and grain trades, sized around canal and terminal limits.
Supramax / Ultramax
50,000–65,000 dwt
Geared tonnage serving minor bulks and ports without shore cranes.
Handysize
10,000–40,000 dwt
Most flexible segment; regional trades, shallow drafts and niche cargoes.