Description
The 3m x 4.2m Side-Linked Flat Pack Container from Atlas Container Supply is a durable, wind- and watertight steel unit engineered for secure, long-lasting performance.
This 3m x 4.2m side-linked flat pack container bundle (powder-coated) is the color-finished alternative to our 3m x 4.2m Side-Linked Galvanised Bundle. Both bundles are identical in configuration, dimensions, weight, and floor specification — the distinction is the exterior finish. This powder-coated version has a coloured topcoat applied over the galvanised steel substrate, providing a sleeker, more refined appearance suited to residential, school, sports club, and customer-facing environments where a raw metallic finish would be visually out of place.
Specify your preferred color at time of order. The powder-coat finish provides an additional layer of corrosion protection on top of the galvanised base, making this bundle particularly well suited to coastal, high-humidity, and chemically aggressive outdoor environments where long-term finish durability is a priority. The combined storage footprint of 11.3m² (121 sq ft) across a 4.07m internal width and 2.80m internal length provides an open-plan storage area suited to wide or bulky items — insulation, sheet materials, large sports equipment, and garden furniture — that a single narrow-profile unit cannot accommodate.
Each unit retains its own door in the assembled structure, providing two separate key-lockable access points. Doors can be configured at the same end for a unified access front, or at opposite ends for independent rear access into each half of the structure. The flat-packed bundle weighs 704 kg total, with the heaviest individual component confirmed at 120 kg — manageable by a small team without crane or forklift assistance, requiring only a socket set for assembly.
Units can be linked side-by-side or end-on-end — one direction only within the same structure. Additional units and linking kits can be added to expand the configuration further. Contact Atlas Container Supply to discuss multi-unit builds in your specified color.
3m x 4.2m Powder-Coated Side-Linked Bundle — Assembled Dimensions
| Dimension | Imperial | Metric |
|---|---|---|
| External Length | 9ft 8in | 2,950mm |
| External Width (combined) | 14ft 4in | 4,370mm |
| External Height | 6ft 10in | 2,090mm |
| Internal Length | 9ft 2in | 2,800mm |
| Internal Width (combined) | 13ft 4in | 4,070mm |
| Internal Height | 6ft 4in | 1,950mm |
| Total Storage Area | 121 sq ft | 11.3 m² |
| Door Width (per unit) | 4ft 1in | 1,250mm |
| Door Height (per unit) | 6ft 2in | 1,880mm |
3m x 4.2m Powder-Coated Bundle — Weight & Transport Specifications
| Specification | Imperial | Metric |
|---|---|---|
| Total Weight (flat-packed) | 1,551 lbs | 704 kg |
| Heaviest Single Component | 265 lbs | 120 kg |
| Flat-Packed Length | 9ft 8in | 2,950mm |
| Flat-Packed Width | 7ft | 2,140mm |
| Flat-Packed Height | 23.6in | 600mm |
| Assembly | Manual — socket set, no machinery | Manual — socket set, no machinery |
| Floor Type | 15mm OSB board | 15mm OSB board |
Bundle Inclusions
- 2 × 3m flat pack storage units — powder-coated finish in your chosen color
- 1 × side-by-side linking kit
- 15mm OSB board flooring per unit
- Two key-lockable door assemblies — configurable at same or opposite ends
What’s Not Included
- Assembly labor — team recommended for safe handling of 120 kg components
- Socket set for assembly
- Foundation or ground preparation
- Shelving or internal storage fittings
- Additional linking kits for further unit expansion
- Local authority permits (if required for permanent installation)
Best Use Cases for the 3m x 4.2m Powder-Coated Side-Linked Bundle
- Residential gardens requiring a color-coordinated wide storage footprint
- Schools and sports clubs requiring open-plan equipment storage in a specified color
- Construction sites with branded color-coded site storage requirements
- Coastal and high-humidity environments where dual-layer corrosion protection is beneficial
- Community and parish organizations needing wide accessible storage in a discreet finish
- Sites where the galvanised finish is not suitable for the surrounding environment
Prefer a bare galvanised finish? See our 3m x 4.2m Side-Linked Galvanised Bundle. Also available: 4m Powder-Coated Flat Pack Container Store and 3m Flat Pack Storage Container.
Every unit is inspected by Atlas Container Supply prior to dispatch.
3m x 4.2m Side-Linked Flat Pack Container Overview
The 3m x 4.2m Side-Linked Flat Pack Container combines rugged construction with everyday practicality, making it a smart long-term investment. Supplied in new condition, it arrives quality-inspected and ready for immediate use across residential, commercial, and industrial applications.
Key Features of the 3m x 4.2m Side-Linked Flat Pack Container
- Powder-Coated
- Choice of Color
- Ships flat-packed for low-cost delivery
- Assembles on site in hours with hand tools
Ideal Uses
The 3m x 4.2m Side-Linked Flat Pack Container is a versatile flat pack container suited to a wide range of jobs, including:
- Rapid-deploy storage and site rooms
- Temporary offices and welfare units
- Secure tool and equipment stores
Construction & Durability
Construction is factory-fresh one-trip steel throughout. On this 3m flat pack unit the door gear is the part that earns its keep: four locking bars into cams top and bottom, seated against a full-perimeter rubber gasket that is what actually keeps weather out.
Delivery & Site Preparation
Site prep for the 3m flat pack unit is simple but not optional. Allow about 75ft of clear, straight approach so the bed can tilt and slide the unit off. Level the pad within an inch or so across the footprint; a container that sits twisted will bind at the doors, which is the one fault that is genuinely annoying to fix later.
Why Buy From Atlas Container Supply
Buying new means you see no wear at all: no dents, no patch welds, no previous cargo. Free freight across the Lower 48, a 30-day return window, and stock we have actually looked at. Browse Flat Pack or the wider container shop to compare.
3m x 4.2m Side-Linked Flat Pack Container – Frequently Asked Questions
What can I use it for?
This unit is ideal for rapid-deploy storage and site rooms, temporary offices and welfare units, and more — it adapts easily to residential, commercial, and industrial needs.
Is delivery included?
Delivery is free to the Lower 48 — it is included in the price. What you need to supply is the pad and a clear approach; we bring the truck and place the unit.
Can I return it?
Yes — 30 days. Every unit is inspected before dispatch, so returns are rare, but the window is there if the unit is not what you expected.
Ready to order? Add the 3m x 4.2m Side-Linked Flat Pack Container to your cart today and enjoy quality-inspected stock, secure checkout, and reliable delivery across the Lower 48 from Atlas Container Supply.







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