HEAVY-DUTY
STEEL CARGO BOXES
Industrial grade 20ft and 40ft structural containers ready for immediate delivery. Engineered with anti-corrosive Corten steel for premium weather-proof storage or custom site modifications.
1,420+ UNITS
READY IN REGIONAL DEPOT STOCK
48-HOUR
FAST DISPATCH TURNAROUND
CORTEN STEEL
CORROSION-RESISTANT GRADE
Hot Deals & Featured Inventory
Premium factory-sealed cargo boxes ready for swift flatbed hauling dispatch.
20ft Standard Dry Container
- 20' x 8' x 8'6" Exterior Dimensions
- 4,850 lbs Tare Weight Limit
- Premium Wind & Watertight Certified
40ft High Cube Container
- 40' x 8' x 9'6" Exterior Dimensions
- 8,750 lbs Tare Weight Limit
- Cargo Worthy Grade-A Certified
20ft Refrigerated Reefer
- 20' x 8' x 8'6" Cold Storage Unit
- Carrier / Thermo King Cooling Engine
- Fully Insulated Stainless Steel Interior
Live Depot & Freight Fleet Gallery
Heavy Duty Logistics
We Ground the Fleet That Moves Global Trade
Founded on industrial grit, we provide heavy-machinery container solutions and strategic haul dispatch management. Our depots are built to secure, modify, and distribute standard and specialized cargo systems across major trade corridors.
20ft Standard Intermodal
- 20' x 8' x 8'6" External Framework
- 1,172 cu. ft. Total Volumetric Storage
- Wind & Watertight (WWT) Certified
40ft High Cube Cargo Unit
- 40' x 8' x 9'6" Vertical Elevation
- 2,694 cu. ft. Max Storage Capacity
- Corten Premium Anti-Corrosive Steel
Direct Phone
Speak instantly with an active container allocation and delivery expert.
+1 (662) 528-3847Official Email
Submit custom layout manifests, bills of lading, or business requests.
info@steelboxsource.comClient Testimonials
Marcus Vance
Logistics Director"Sourcing structural 40ft high cubes was effortless. The team handled flatbed placement parameters perfectly. Highly recommended for heavy commercial site projects."
Elena Rostova
Supply Chain Lead"Watertight structural integrity certificates were delivered upfront. The modification workshop customized internal mounts cleanly. Superb speed."
David Briggs
Asset Manager"We acquired ten refrigerated reefer units for seasonal freight surge overages. Cooling matrix operation parameters remain flawless under heavy loads."
Certified Asset Grading Matrix
One-Trip / New Build
Manufactured overseas and shipped once to our USA or Australia yards. Completely pristine condition, minimal to zero cosmetic blemishes, and maximum lifespan potential.
Cargo Worthy (CWO)
Certified structurally sound under international maritime parameters. Perfect structural integrity, minor outer dings or surface rust patches, and completely leakproof.
Wind & Watertight (WWT)
Ideal choice for localized field storage solutions. Completely sealed against wind, water, and pests. Shows authentic operational surface character and paint fading.
Dimensional Tolerance Matrix
| Container Class | Exterior Footprint | Interior Volume | Tare Weight Baseline | Max Payload Allowance |
|---|---|---|---|---|
| 20ft Standard Dry | 20'L x 8'W x 8'6"H | 1,172 cu. ft. | 4,850 lbs / 2,200 kg | 62,350 lbs / 28,280 kg |
| 40ft Standard Dry | 40'L x 8'W x 8'6"H | 2,389 cu. ft. | 8,160 lbs / 3,700 kg | 59,040 lbs / 26,780 kg |
| 40ft High Cube | 40'L x 8'W x 9'6"H | 2,694 cu. ft. | 8,750 lbs / 3,970 kg | 58,450 lbs / 26,510 kg |
| 53ft High Cube Overland | 53'L x 8'6"W x 9'6"H | 3,845 cu. ft. | 11,110 lbs / 5,040 kg | 56,080 lbs / 25,440 kg |
Architectural Fleet Capabilities
Massive Volume
Continuous allocation access to thousands of steel shipping configurations directly out of depot holding centers.
Rapid Haulage
Integrated flatbed heavy trucks optimized for structural drop placements and immediate turnarounds.
Custom Rigging
Full workspace operations capable of cutting ventilation doors, personnel hatches, and structural lock installs.
Full Certification
Every dry container or refrigerated reefer unit leaves with an updated inspection validation protocol paper.
Industrial Leasing & Sales
We configure long-term compound security options and complex drop logistics for critical commercial operations frameworks worldwide.
Commercial Fleet Operations
Bulk acquisition logistics tailored for enterprise distribution.
Depot Storage Solutions
Secure containment tracking inside high-perimeter yards.
Custom Modification Workshop
Engineered structural cuts, shelving installs, and painting.