Double-leaf end door
A set-and-forget bulk store for sites that fill once and draw down slowly. Lowest cost, smallest opening.
20ft Dangerous Goods Container: Bunded DG Storage
- Size
- 20ft high-cube
- Internal
- 33.2 m3
- Bund
- 1,200 L
- Compliance
- AS 1940 / 3780 / 3833
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6,058 x 2,438 x 2,896 mm external (high-cube), 33.2 m3 internal (up to 39.8 m3 high-cube side-opening). Fully welded Corten steel on an RHS floor frame, non-spark industrial mesh floor, four door configurations. Tare ~2,600 kg standard-door.
Built to AS 1940:2017 (flammable and combustible liquids), AS 3780:2023 (corrosives), and AS 3833:2024 (mixed-class segregation). 1,200 L integrated bund, 316L stainless lockable drain valve. Certificate of Compliance per unit.
Mining fuel farms, oil-and-gas bulk diesel and solvent storage, construction laydowns, and general industrial sites once DG inventory runs to multiple drums, IBCs, or palletised stock. Lifts on forklift pockets, lifting eyes, and ISO corners.
Overview
Full-size bunded DG storage, factory-direct
The 20ft dangerous goods container is a full-size 6 m bunded outdoor DG store with a 1,200 L integrated welded steel bund and 33.2 m3 of internal volume for bulk flammable, corrosive, and chemical storage. SCS Global builds it factory-direct from our Yixing, Jiangsu facility and ships it ready-signed for Class 3, 4.1, 4.3, 5.1, 6.1, and 8 dangerous goods. It sits at the top of our dangerous goods containers range and complies with AS 1940:2017, AS 3780:2023, and AS 3833:2024, with a Certificate of Compliance issued per unit. The 20ft is SCS's most-produced DG size: more floor area, a larger bund, and four door configurations to match how often stock is loaded and rotated. If your inventory is light, step down to the 10ft for the same compliance in a smaller footprint.
Specifications
20ft Dangerous Goods Container Specifications
The 20ft DG container runs a fully welded Corten steel shell on an RHS floor frame, with a non-spark industrial mesh floor over the steel deck and no timber. It measures 6,058 mm long externally, with 5,900 mm of internal length, and the bund wall is integrated into the frame, so spill containment is part of the box. Each unit comes off our factory-direct line ready-signed for Class 3, 4.1, 4.3, 5.1, 6.1, and 8 service, subject to SDS compatibility.
| Specification | Value |
|---|---|
| External dimensions (L x W x H) | 6,058 x 2,438 x 2,896 mm (20'0" x 8'0" x 9'6", high-cube) |
| Internal dimensions (L x W x H) | 5,900 x 2,290 x 2,600 mm |
| Door opening (W x H) | 2,340 x 2,597 mm |
| Internal cubic capacity | 33.2 m3 standard-door, up to 39.8 m3 high-cube side-opening |
| Bund capacity | 1,200 L integrated spill containment |
| Maximum liquid storage | ~10,000 L, reached across multiple drums or IBCs under the AS 1940 containment rule |
| Tare weight | ~2,600 kg (standard-door build) |
| Floor | Fully welded steel floor, RHS floor frame, non-spark industrial mesh covering |
| Bund construction | Front steel bund wall integrated into the welded floor frame, with raised cross-members for spill cleanup access |
| Drain valve | 316L stainless steel lockable safety drain valve |
| Ventilation (passive) | High and low weatherproof vent grilles, top and bottom wall level |
| Ventilation (mechanical, option) | Electric extraction fan, factory option |
| Doors | Double-leaf end door (standard), with single side, double side, and full-length side-opening variants |
| Door internal release | Emergency-escape internal release handle |
| Lifting | Forklift pockets, lifting eyes, ISO corner castings |
| Wall and roof construction | Fully welded Corten steel, factory-painted |
| Signage and placards | DG-class placards plus No Smoking and No Naked Flame, supplied compliant with the DG storage code |
| Certificate of compliance | Independent Certificate of Compliance issued with each unit |
Bunded Containment
Bunding Capacity and Spill Containment
Every unit ships with a 1,200 L welded steel bund in the floor frame, sized under AS 1940 to hold more than the largest single liquid container. The bund wall ties into raised cross-members, so spills drop below the working floor. That caps any single drum or IBC at roughly 1,000 to 1,100 litres; the ~10,000 L total is reached across multiple smaller containers, the calc that matters for an oil storage shipping container holding bulk diesel. Drain hardware is 316L stainless and lockable; every bund is pressure-tested before shipping.
Compliance
Compliance: AS 1940, AS 3780 and AS 3833:2024
The 20ft DG store complies with AS 1940:2017 (flammable and combustible liquids), AS 3780:2023 (corrosive substances), and AS 3833:2024 (mixed-class segregation), and we issue a Certificate of Compliance with every unit. The 20ft's larger footprint makes mixed-class segregation a genuine buyer requirement: a single box can carry flammables and corrosives together if segregation distances, bunding, and ventilation are laid out for that class combination, requested at quote stage. SafeWork Australia sets the work-health-and-safety duties that sit alongside these standards.
ISO 
Bureau Veritas 
DNV 
Lloyd's Register 
BIC 
ABS Standards & References
Standards we build to
Every 20ft DG container is engineered against the standards below. Click through to the source authority for the current revision.
AS 1940:2017 Storage and handling of flammable and combustible liquids. The controlling standard for Class 3 storage: secondary containment, ventilation, ignition-source separation, and signage. Standards Australia
AS 3780:2023 Storage and handling of corrosive substances. Drives sump depth (at least 150 mm), sump capacity (at least 25% of aggregate), self-closing self-latching multi-point doors, and a chemical-resistant internal finish. Standards Australia
AS 3833:2024 Storage and handling of mixed classes of dangerous goods in packages and IBCs. Sets segregation, separation, and bunding for a single unit holding two or more incompatible classes. Standards Australia / Standards NZ
SafeWork Australia Model WHS duties for storing and handling hazardous chemicals in the workplace. SafeWork Australia
Door Configurations
Door Configurations and Access Options
The 20ft is built in four door configurations. The right one comes down to how often you load and rotate stock, and whether a forklift or a person on foot does the loading. Door choice is set at order so the factory builds to your access pattern.
Single side-opening
Mid-frequency access through one working face. Suits manual drum and jerrycan handling.
Double side-opening
Two working faces for faster loading and clearer sightlines across the bund.
Full-length side-opening
The whole long wall opens for forklift and palletised-IBC access. Built for high-throughput sites with frequent stock rotation, and on a high-cube build the extra internal height clears bulkier palletised IBCs.
Applications
Applications and Deployment
SCS deploys the 20ft DG container across mining, oil-and-gas, construction, and industrial sites wherever a full-size, fully bunded, AS-compliant outdoor DG store is required. It is the size most sites default to once DG inventory runs to multiple drums, IBCs, or palletised stock.
Mining & Resources
Sits next to fuel farms, lube stores, and reagent lockups on remote sites. The default DG size once inventory runs to multiple drums and IBCs.
Oil, Gas & Energy
Bulk diesel, hydraulic oil, and solvent storage, specified as an oil storage shipping container with the bund sized to the largest single drum or IBC.
Construction & Infrastructure
Full-size relocatable storage for solvents and fuels through the build, with side-opening doors for forklift loading and high-throughput rotation.
Military & Defence
A full-size, placarded, relocatable DG store for defence and government sites running mixed fuel, solvent, and hazardous-goods inventory close to the point of use.
Tell us your DG classes, door configuration, and site, and SCS quotes the build factory-direct.
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Engineering Resources
Download technical documentation
Spec sheet, CAD drawing, and compliance summary for engineering review. Each is produced at project handoff.
PDFOn request
20ft DG Container Spec Sheet
Full specification matrix, AS-standard compliance summary, drawing references.
DownloadCADOn request
20ft DG Container CAD Drawing
Plan, elevation, and section drawings for engineering reference.
DownloadPDFOn request
DG Compliance Summary: AS 1940 / AS 3780 / AS 3833:2024
One-page summary of the three controlling AU/NZ DG standards.
DownloadRelated Products
Explore the DG range
Sister products and guides in the SCS dangerous goods container range, built on the same Yixing line against the same compliance baseline.
10ft Dangerous Goods Container
The compact step-down: same AS 1940, AS 3780, and AS 3833:2024 compliance in a 9'10" footprint for light DG inventory.
10ft dangerous goods container
Flammable Liquid Storage (Class 3)
Dedicated Class 3 storage for fuels, solvents, and combustibles. AS 1940-aligned bunding, ventilation, and signage.
flammable liquid storage
Corrosive Storage (Class 8)
Chemical-resistant lined storage for acids and bases. AS 3780-aligned sump depth, doors, and ventilation.
corrosive storage
Chemical Storage Containers
Broader chemical storage range across single-class and mixed-class deployments.
chemical storage containers
DG Classification and Compliance Guide
Class-by-class storage rules and the AU/NZ standards that govern DG storage.
dg classification and compliance guide
Bunded vs Unbunded Storage
When secondary containment is required and how to size a bund to your inventory.
bunded vs unbunded storageFAQ
Frequently Asked Questions
Three questions procurement and operations teams ask most often about the 20ft DG container.
What is a 20ft DG container?
A 20ft DG container is a full-size 6 m bunded outdoor steel store, 6,058 x 2,438 x 2,896 mm externally, for Class 3, 4.1, 4.3, 5.1, 6.1, and 8 dangerous goods. It carries a 1,200 L integrated bund, a 316L stainless drain valve, and AS 1940, AS 3780, and AS 3833:2024 compliance.
What are the door options on the 20ft build?
Four: double-leaf end door, single side-opening, double side-opening, and full-length side-opening. End doors suit set-and-forget bulk storage. Full-length side-opening opens the whole long wall for forklift and palletised-IBC access on high-throughput sites with frequent stock rotation. Door choice is set at order so the factory builds to your access pattern.
How much can a 20ft DG container store?
The 20ft DG container holds 33.2 m3 internally, up to 39.8 m3 in the high-cube side-opening build, and about 10,000 L of liquid across multiple drums or IBCs. The 1,200 L bund caps the largest single container at roughly 1,000 to 1,100 litres under the AS 1940 secondary-containment rule.