Suezmax

A Suezmax oil tanker, Seavigour, in 2017
General characteristics
Tonnagetypically 160,000 DWT
Length400 m (1,300 ft) (maximum)
Beam77.5 metres (254 ft) (maximum); 50 m (164 ft) (at 20.1 m draft)
Height68 m (223 ft) (maximum)
Draft20.1 m (66 ft) (maximum)

"Suezmax" is a naval architecture term for the largest ship measurements capable of transiting the Suez Canal in a laden condition, and is almost exclusively used in reference to tankers. The limiting factors are beam, draft, height (because of the Suez Canal Bridge), and length (even though the canal has no locks).