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Seaway Containers

Container Grades & Sizes

New (one-trip) vs used (wind & water tight)

New one-trip: made overseas and used for a single cargo voyage. Best appearance and minimal wear. A good fit for conversions, retail and anywhere looks matter.

Used WWT: inspected to be sealed against wind and rain. Expect dents, scratches or surface rust. A practical, lower-cost choice for storage.

Which size?

20ft suits tighter sites and smaller storage needs. 40ft High Cube gives roughly double the floor length and extra height for bulky or tall items.

20ft Standard40ft High Cube
External size20′ × 8′ × 8′6″40′ × 8′ × 9′6″
Internal size19′4″ × 7′8″ × 7′10″39′5″ × 7′8″ × 8′10″
Door opening7′8″ × 7′5″7′8″ × 8′5″
Capacity≈ 1,170 cu ft≈ 2,694 cu ft
Empty weight≈ 5,000 lb≈ 8,600 lb
Max payload≈ 62,000 lb≈ 58,000 lb

Figures are approximate and vary slightly by manufacturer.

Still unsure?

Tell us how you plan to use it and we will recommend a size and condition.

Ask for advice