Conex Boxes for Sale — New & Used Shipping Containers
Looking for a conex box for sale? Steel Container Depot carries new and used conex containers in every size — from compact 10ft units to full 45ft high cubes. Every conex box we sell is inspected for structural integrity and watertightness before delivery.
What Is a Conex Box?
A conex box is a steel shipping container originally designed for military transport (the name comes from “CONtainer EXpress”). Today, conex boxes are used for storage, shipping, construction offices, and custom conversions. They are the same thing as shipping containers, sea cans, and ISO containers — just different names for the same product.
Used Conex Boxes for Sale Near Me
Our used conex containers are graded by condition — from cargo-worthy (Grade A, minimal cosmetic wear) to wind-and-watertight (Grade B, surface rust but fully functional). All used conex boxes come with working doors, intact floors, and no structural damage.
- Grade A (Cargo Worthy) — Minor dents, original paint, suitable for export. From $1,800.
- Grade B (Wind & Watertight) — Surface rust, may have patches, fully sealed. From $1,200.
- One-Trip — Used once for import, near-new condition. From $2,800.
-

20ft Container Swimming Pool With Fiber Glass Window
$6,920.00 Add to cart -

7Ft x 7Ft Shipping Container Office | Portable Building | Anti-Vandal Building
$2,889.00 Add to cart -

Custom 40ft Shipping Container House
$7,549.00 Add to cart -

Luxury 40ft prefab container house with easy-folding sandwich panels.
$30,490.00 Add to cart -

10ft × 8ft Shipping Container Office | Portable Anti-Vandal Building
Sale! Original price was: $3,450.00.$3,089.00Current price is: $3,089.00. Add to cart -

24ft Storage Container With Roll-Up Door
Sale! Original price was: $2,900.00.$2,489.00Current price is: $2,489.00. Add to cart -

40Ft Container Swimming Pools
Sale! Original price was: $14,000.00.$12,500.00Current price is: $12,500.00. Add to cart -

10ft High Cube Container (One Trip)
Sale! Original price was: $2,400.00.$2,085.00Current price is: $2,085.00. Add to cart
Conex Container Sizes
| Size | External (L×W×H) | Internal (L×W×H) | Weight |
|---|---|---|---|
| 10ft Conex | 10′ × 8′ × 8’6″ | 9’4″ × 7’8″ × 7’10” | 2,870 lbs |
| 20ft Conex | 20′ × 8′ × 8’6″ | 19’4″ × 7’8″ × 7’10” | 5,070 lbs |
| 40ft Conex | 40′ × 8′ × 8’6″ | 39’5″ × 7’8″ × 7’10” | 8,380 lbs |
| 40ft HC Conex | 40′ × 8′ × 9’6″ | 39’5″ × 7’8″ × 8’10” | 8,775 lbs |
Frequently Asked Questions
What is the difference between a conex box and a shipping container?
Nothing — they are the same product. “Conex” is a military term, “shipping container” is the commercial term, and “sea can” is used in Canada. All refer to standardized ISO steel containers.
How much does a used conex box cost?
Used conex boxes range from $1,200 (wind & watertight) to $2,800+ (one-trip/near-new). Price depends on size, condition, and your location. 20ft used conex containers typically cost $1,500-$2,500.
Can I buy a conex box near me?
Yes — Steel Container Depot delivers conex boxes to all 50 states. We have inventory across multiple depots and can typically deliver within 5-10 business days.
What can I use a conex box for?
Conex boxes are used for on-site storage, farm equipment shelter, construction tool rooms, man caves, workshops, small offices, retail pop-ups, and even container homes. They are weatherproof, secure, and rodent-resistant.