20ft Standard Storage Container – Used, Storage Class

A Used 20ft Storage Container for Sale, Priced for Ground-Level Work

If the box is going to sit on your property and stay there, a used 20ft storage container for sale is usually the most sensible money you can spend. This unit is graded storage-class: inspected as structurally sound and weather-resistant, but not sold or certified for international transport or lifting with cargo-handling equipment. That single distinction is what keeps the price below a cargo-worthy box doing the same day-to-day job.

What you get is the part most buyers actually use — a welded steel frame, corrugated walls, doors on heavy hinges, and a lockable opening. What you skip is a certification you would only need if the container were going onto a ship. For a farm, a driveway, a yard, or a job site, that trade is straightforward.

Specifications at a Glance

• Condition grade: Used, storage-class — sound and weather-resistant, not certified for ocean cargo
• External dimensions: 20' × 8' × 8'6"
• Internal dimensions (approx.): 19'4" × 7'8" × 7'10"
• Door opening: 7'8" wide × 7'6" high
• Interior volume: roughly 1,170 cubic feet
• Tare weight: approximately 4,850 lb
• Security: double swing doors with locking rods, accepts customer-supplied padlocks
• Terms: flat $500 delivery to all 50 states; 30-day returns with buyer-paid haulage and a 15% restocking fee

Practical Ground-Level Uses for a 20 Foot Conex Box

Twenty feet is the size most people can actually fit, and it holds far more than a shed or a rental locker.

• Household storage during a renovation, a move, or a downsizing
• Tool and equipment security on job sites without a lockable building
• Farm supplies, tack, feed, and small implements kept dry
• Small business inventory that outgrew the stockroom
• Club, church, and sports-ground gear stored between seasons

Setting It Up and Keeping It in Good Order

Level placement is the whole game. Set the four corners on ties, blocks, or a gravel pad so the frame does not twist, and give the box a slight fall so water runs off the roof rather than sitting on it. Keep a gap around the container for airflow and for walking around it, and check the door gaskets each season.

For delivery, allow roughly 60 feet of straight approach and about 15 feet of overhead clearance. If you might move the container later or ship goods internationally, step up to the certified cargo-worthy version of this 20-footer instead. Otherwise, compare what is available across the 20-foot listings and the whole used container range. Delivery timing and access requirements are set out in our shipping terms, and ordering questions are answered on the FAQ page.

Frequently Asked Questions

What is the difference between storage-class and cargo-worthy?

Cargo-worthy means the unit has been assessed as fit for lifting and international transport, with sound corner castings, frame, and floor. Storage-class means it has been checked as sound and weather-resistant for stationary use, without that transport certification. For a container that stays on your property, storage-class does the same work for less money.

How secure is a used container?

The shell and doors are steel, and the locking rods engage the frame at several points, which makes it far more secure than a timber shed. Most owners add a shrouded padlock or a lock box over the hasp, since the padlock itself is the weak point. Position the doors toward a building or fence where possible.

Will surface rust get worse over time?

Weathering steel forms a stable oxide layer that slows further corrosion, so light surface rust is normal rather than alarming. Problems start where water sits: a ponding roof, a blocked drainage path, or a container settled into wet ground. Keep the roof clear, set it level, and touch up any spots where paint has been gouged to bare metal.