40ft Conjoined Shipping Container
Buy a 40ft conjoined shipping container with a spacious open interior, durable Corten steel construction, and customizable layouts for offices, retail, warehouses, classrooms, workshops, modular homes, and commercial buildings. Available in new and refurbished configurations.
$12 ,500
40ft Conjoined Shipping Container
A 40ft conjoined shipping container — also called a double-wide conex box or modular container build — is a modular steel structure for sale created by joining two 40-foot shipping containers side by side with pre-removed interior side walls. You get an expansive open-plan interior with the durability and mobility of shipping containers, delivered as two modified halves with a bolt-together assembly system.
What is a conjoined container? Two 40ft container halves arrive with structural steel reinforcements and removed side walls, ready to bolt together on-site for a double-wide footprint. Available in new one-trip condition, this configuration delivers the versatility of a building with container-grade strength and cost efficiency.
Perfect for mobile offices, large work bays, pop-up retail spaces, open storage areas, and custom builds where a single 40ft container is not wide enough but you want container durability and modular assembly.
Request your 40ft conjoined shipping container online — delivered in 3-7 days.
Specifications
| Feature | Details |
|---|---|
| Exterior Length | 40 ft (12.19 m) |
| Exterior Width | 16 ft (4.88 m) when joined |
| Exterior Height | 8 ft 6 in (2.59 m) Standard / 9 ft 6 in (2.90 m) High Cube |
| Interior Open Width | Approx. 15 ft 4 in (4.67 m) (side walls removed pre-delivery) |
| Construction | Corten steel with structural steel reinforcement |
| Floor Type | Marine-grade plywood over steel cross-members |
| Door Type | Double cargo doors (one set per 40ft unit) |
| Door Opening Width | 7 ft 8 1/8 in. (2.34 m) per door set |
| Door Opening Height | 7 ft 5 3/4 in. (2.28 m) Standard |
| ISO Certification | No |
| CSC Plate | No |
| NSN | No |
| Assembly | Bolt-together hardware kit included |
| Weather Resistance | Wind and watertight seals, rust-resistant steel |
| Paint (Refurbished only) | RAL 1015 Light Beige Direct-to-Metal (DTM) finish |
| Floor Load Capacity | 16,000 lbs (7,257 kg) |
| Corner Post Strength | ISO standard, 192,000 lbs stacking |





