Certified ISO standard High Cube (9ft 6in), temperature-controlled reefer boxes, offshore cargo equipment, and modular structural enclosures fabricated to rigorous maritime guidelines.
Over 78% of modern global sea freight has transitioned to High Cube (HC) architecture. Gain strategic information on volume ratios, structural stability, and multimodal efficiency advantages.
By delivering an extra 305 mm (1 foot) in vertical clearance, an ISO 40ft High Cube container expands cargo volume from 67.7 m³ to 76.4 m³. This extra capacity directly targets light-density, high-cube e-commerce goods, palletized FMCG products, and oversized industrial machinery without requiring wide-load shipping permits.
The worldwide transition to renewable power has positioned the High Cube sea can as the standard container structure for Battery Energy Storage Systems (BESS), mobile hyperscale compute pods, and commercial electrolyzers. The added 2,896 mm ceiling height accommodates thermal management ducts, HVAC chillers, and top-routed fire-suppression manifolds seamlessly.
Engineered around ISO 668 dimensions, modern HC sea cans allow seamless transfers between double-stack North American intermodal well cars, trans-Eurasian 'Belt & Road' broad-gauge railway wagons, and ultra-large container vessels (ULCVs) without mechanical adjustments or gauge compromises.
| Dimensional Metric | 20ft Standard Dry | 20ft High Cube (HC) | 40ft Standard Dry | 40ft High Cube (HC) |
|---|---|---|---|---|
| External Height | 8 ft 6 in (2,591 mm) | 9 ft 6 in (2,896 mm) | 8 ft 6 in (2,591 mm) | 9 ft 6 in (2,896 mm) |
| Internal Clear Height | 2,393 mm | 2,698 mm | 2,393 mm | 2,698 mm |
| Internal Volume (Capacity) | 33.2 m³ (1,172 cu ft) | 37.4 m³ (1,320 cu ft) | 67.7 m³ (2,390 cu ft) | 76.4 m³ (2,698 cu ft) |
| Max Gross Weight (Rating) | 30,480 kg (67,200 lbs) | 30,480 kg (67,200 lbs) | 32,500 kg (71,650 lbs) | 32,500 - 34,000 kg |
| Floor Structure Standard | 28mm Marine Plywood | 28mm Hardwood / Bamboo | 28mm Marine Plywood | 28mm Keruing / Steel Plate Opt. |
| Structural Corten Spec | SPA-H / C-TEN A | SPA-H Hot Rolled | SPA-H Anti-Corrosive | SPA-H High Yield Structural |
CIMIC builds container equipment strictly under certified quality frameworks, using premier raw materials and rigorous multi-axis load tests.
Every High Cube container produced on our automated production lines carries a stainless steel CSC Safety Approval Plate. Each unit undergoes full structural checks according to the International Convention for Safe Containers, covering transverse racking, end-wall resistance, floor deflection, and 9-high stacked static load ratings.
For specialized offshore and deep-water subsea projects, our DNV-grade containers feature impact-resistant, high-toughness steel corner castings, certified multi-leg wire rope lifting slings, and Charpy V-notch impact testing to withstand -20°C dynamic sea conditions.
Constructed from premium SPA-H atmospheric corrosion-resistant steel, each shell receives automated shot-blasting to ISO Sa 2.5 standards, followed by a multi-coat zinc-rich epoxy primer and polyurethane finish. This coating system passes 1,500+ hours of salt spray exposure to satisfy ISO 12944 C5-M marine durability requirements.
Field-proven deployments illustrating how custom modifications, side openings, and integrated thermal insulation solve complex transport and structural challenges.
Equipped with Carrier, Daikin, or Thermo King refrigeration units, our 40ft High Cube reefer units maintain exact setpoints from -35°C to +30°C. Their food-grade stainless steel interior linings and micro-ventilation ducting protect vaccines, bio-enzymes, and fresh produce during trans-oceanic voyages.
Utilizing 9ft 6in vertical clearance, modular builders configure accommodation camps, field medical stations, and luxury container homes without ceiling height constraints. The HC layout leaves space for spray foam insulation, acoustic panels, and internal utility routing.
Compliant with ADR, IMDG, and local EPA guidelines, our customized 20ft HC hazardous material containers feature explosion-proof ventilation, internal spill-containment bunds, spark-free groundings, and automated fire-release systems for chemicals, batteries, and fuels.
With full side-opening access doors and high-capacity internal vehicle-securing frame setups, our HC dry containers fit up to 4 complete SUVs or commercial vehicles per 40ft container, lowering ro-ro costs and shielding vehicle finishes from open sea conditions.
Leading green, intelligent maritime engineering through smart IoT integration, automated fabrication, and sustainable materials.
Integrated IoT sensor architectures track internal pressure, door latch security, structural strain, and shock indices in real time. Satellite and 5G connections provide instant visibility over high-value cold-chain goods and container fleet locations worldwide.
Meeting strict ESG standards, CIMIC utilizes automated 100% waterborne paint lines and electrostatic zinc application processes. These reduce volatile organic compound (VOC) emissions by over 80% while retaining ISO 12944 corrosion resistance.
Developing next-generation micro-alloyed composite panels reduces overall container tare weight by 12% without sacrificing structural yield strength. This lower tare weight expands maximum payload capacity for shippers and helps lower ocean transport carbon footprints.
Clear answers to frequent technical, compliance, and procurement questions regarding ISO High Cube container engineering, load capacities, and delivery.
Browse our extended equipment range: high-payload dry cargo, bulk commodities, multi-vehicle racks, and modular nested transport containers.
