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20FT, 40FT or high cube: choosing the right container size

Container size affects storage capacity, delivery equipment, site clearance and cost. Understanding the basic footprint before shopping makes the rest of the decision much easier.

Key takeawayMeasure the site and the largest items first; then choose the smallest unit that provides comfortable working room and future capacity.
01

20FT standard containers

A 20FT container has an exterior footprint of roughly 20 feet by 8 feet and is commonly about 8 feet 6 inches high. It is a versatile option where placement space or turning room is limited.

  • Compact footprint
  • Useful for tools, seasonal goods and moderate inventory
  • Often easier to place on tighter sites
  • Requires approximately 70 feet of clear roll-off space in a typical Derkson plan
02

40FT standard containers

A 40FT unit uses the same approximate width but doubles the nominal length. It provides much more floor area, although the delivery route and prepared site must accommodate a longer truck-and-trailer combination.

03

High cube containers

High cube containers are typically one foot taller than standard-height units. The added height can help with bulky equipment, tall shelving, airflow planning and modification projects without increasing the footprint.

  • About 9 feet 6 inches exterior height
  • Additional vertical capacity
  • Popular for modifications and racking
  • Door opening and interior dimensions remain smaller than exterior dimensions
04

Specialty configurations

Open-side, double-door and other specialty units change how cargo can be accessed. Confirm that the feature solves a real handling problem and that the site leaves enough space for every door to operate safely.

Common questions

Helpful answers before you decide

Do exterior dimensions equal usable interior space?+

No. Wall construction, floor, roof and door frames reduce the interior and door-opening dimensions. Always use the listing specifications for planning.

How much delivery space does a 40FT container need?+

Derkson generally plans for about 110 feet of clear straight-line roll-off space, but slope, ground, access and equipment can change the requirement.

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