Port Draft & Vessel Restriction Database
Indicative maximum permissible arrival/sailing draft, LOA, beam and DWT for major bulk terminals, plus a quick vessel suitability check. Always reconfirm with the local agent and current port circular before fixing.
Tidal sailing windows only; convoy departures on the high tide. Pilotage compulsory.
| Class | DWT | LOA | Beam | Draft |
|---|---|---|---|---|
| Handysize | 10,000–39,999 | 130–180 m | 20–28 m | 8.5–10.5 m |
| Handymax | 40,000–49,999 | 175–190 m | 28–32 m | 10.5–11.5 m |
| Supramax | 50,000–59,999 | 190–200 m | 32.2 m | 12.0–12.8 m |
| Ultramax | 60,000–66,999 | 199–200 m | 32.3 m | 13.0–13.3 m |
| Panamax | 67,000–79,999 | 225 m max (old locks) | 32.31 m max | 12.04 m (old locks) |
| Kamsarmax | 80,000–84,999 | 229 m | 32.26 m | 14.4 m |
| Post-Panamax | 85,000–119,999 | 230–255 m | 36–43 m | 14.5–15.5 m |
| Capesize | 120,000–199,999 | 270–300 m | 43–47 m | 17.0–18.2 m |
| Newcastlemax | 200,000–219,999 | 300 m max | 50 m max | 18.5 m |
| VLOC | 220,000–400,000 | 330–362 m | 55–65 m | 18.5–23.0 m |
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Overview & methodology
What is the port draft and vessel database?
Numerical Example: Vessel Suitability Check
The vessel can sail with a 0.3m under-keel clearance (UKC) margin at this port.
Related tools: Draft Survey, Stowage Factor.
Method note: calculations run in your browser using the formulas and published rule books cited on this page. Results are free estimates for planning, with no login required, and should be confirmed with your bank, broker or the official source before you commit.
Frequently asked questions
What is vessel draft and why does it matter?
Draft is the depth of water a vessel displaces when loaded. If a vessel draws 8.5 meters and the port's max draft is 8.2m, the vessel cannot enter without light-loading (reducing cargo). Draft varies by ship size and load: ballast draft (empty) vs. loaded draft (at capacity). Exceeding port limits is a deal-breaker.
What is LOA and beam?
LOA (Length Over All) is the vessel's total length. Beam is the width. Ports have maximum LOA and beam limits for their locks/channels. A ship 290m LOA cannot enter a port with a 270m limit. Check these specs carefully before negotiating vessel fixtures.
What is DWT (Deadweight Tonnage)?
DWT is the total weight a vessel can carry safely: cargo + fuel + stores + ballast. If you contract 55,000 MT of cargo but the vessel's DWT is 50,000 MT, it cannot take the full load. Always verify DWT matches your cargo quantity.
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