Key Features

What's Included

  • 6m x 3m galvanised steel frame in flat (R1R), skillion (R1S) or pitched (R1T) roof
  • Bolt-together system, no welding, assembles in a few hours
  • 4.5 mm main structure with a four-layer powder-coat finish
  • Flat-packed in a steel crate with 8 lifting points, one kit to a 40ft container
  • Connects side-by-side or end-to-end for larger structures
  • Takes 50 mm EPS wall panels, Colorbond roof and flooring
  • Cladding panels, trims, marine plywood and a PA door available separately
  • Cut-to-size and custom configurations to order

Specifications

Container Frame Specifications

SCS builds the container frame range on one 6m x 3m footprint in three roof profiles, all from galvanised steel with a four-layer powder coat, supplied as a bolt-together kit that ships flat-packed in a steel crate. One kit fills a 40ft container.

Technical specifications
Specification Value
Range Flat (R1R), skillion (R1S), pitched A-frame (R1T)
Footprint (external L x W) 5,960 x 3,000 mm (6m x 3m)
R1R flat (external L x W x H) 5,960 x 3,000 x 2,700 mm
R1S skillion (external L x W x H) 5,960 x 3,000, 2,650 (low) / 3,000 (high) mm
R1T pitched (external L x W x H) 5,960 x 3,000, 2,720 (low) / 3,070 (high) mm
Main structure 4.5 mm galvanised steel
Beams and arms 2.3 mm galvanised steel
Base joists and roofing members 1.2 mm galvanised steel
Coating Four-layer powder coat over galvanised steel
Lifting points 8 (all profiles)
Assembly Bolt-together, no welding
Crate dimensions 5,750 x 750 x 400 (R1R) / 5,750 x 750 x 470 (R1S) / 5,750 x 720 x 600 (R1T) mm
Crate weight 535 kg (R1R) / 590 kg (R1S) / 630 kg (R1T)
Shipping Flat-packed, one kit fills a 40ft container
Container included New 40ft High Cube with every FlexiFrame order, and a new 20ft GP (20NGP) with shower-module and PA-door orders
Compatible build 50 mm EPS wall panels, Colorbond roof, 19 or 25 mm flooring
Compliance NCC 2022, AS/NZS 4600, AS/NZS 1170, AS/NZS 4680
Container frame forming the structural shell of a building

Overview

What Is a Container Frame?

A container frame is the steel skeleton of a building, supplied as a bolt-together kit rather than a finished structure. Buyers searching for a shipping container frame want the frame on its own: the posts, beams and roof members that carry the load, ready to clad and fit out. SCS supplies that as a container frame kit on a 6m x 3m footprint, in galvanised steel rather than timber. You add the walls, roof and floor.

Flat, skillion and pitched container frame roof profiles

Roof Options

Flat, Skillion and Pitched Roof Options

The same 6m x 3m frame comes in three roof profiles on the identical footprint and steelwork. The flat roof (R1R) is the compact base at 2,700 mm. The skillion roof (R1S) slopes from 2,650 to 3,000 mm to shed water. The pitched roof (R1T), an A-frame, runs 2,720 to 3,070 mm for more overhead space. All three take the same cladding, roof and flooring, and frames join or cut to size for larger builds.

Steel container frame being bolted together on site

Build

How the Frame Goes Together

Every frame is a flat pack container frame: it ships in a steel crate and bolts together without welding. The galvanised steel carries a four-layer powder coat, and most kits assemble in a few hours with basic equipment. It takes a 19 or 25 mm subfloor, 50 mm EPS or framed walls, and a Colorbond roof. SCS builds at its own Yixing, Jiangsu factory; every FlexiFrame order ships with a new 40ft High Cube container, and sold-separately shower modules and PA doors with a new 20ft General Purpose container.

Compliance

Australian Compliance and Build Standards

A container frame is a structural component, so compliance sits with the completed building rather than the kit alone. In Australia that means the National Construction Code (NCC 2022). The cold-formed steel sections are designed to AS/NZS 4600, the structure's load actions, including Region D cyclonic wind in cyclone-prone areas, to AS/NZS 1170, and the galvanised corrosion protection to AS/NZS 4680. Final approval for container frames in Australia rests with the local council or building surveyor, and what's required depends on the state, the land zoning and the finished use. The maritime container marks you see on freight containers cover shipping, not steel building frames, so they don't apply here. What matters is the structural and building compliance of the finished structure on the frame.

ISO certification ISO
Bureau Veritas certification Bureau Veritas
DNV certification DNV
Lloyd's Register certification Lloyd's Register
Bureau International des Containers (BIC) certification BIC
American Bureau of Shipping (ABS) certification ABS

Standards & References

Standards the build is held to

A container frame is a structural component. The standards below govern the steelwork and the completed building. Click through to the source authority for the full text and current revision.

NCC 2022 National Construction Code: structural and building requirements for the completed building the frame forms part of (structure, fire, weatherproofing, energy efficiency). Australian Building Codes Board (ABCB)
AS/NZS 4600 Cold-Formed Steel Structures: structural design of the thin-gauge galvanised steel frame members. Standards Australia / Standards NZ
AS/NZS 1170 Structural Design Actions: permanent, imposed and wind loads (including Region D cyclonic) the completed structure must resist. Standards Australia / Standards NZ
AS/NZS 4680 Hot-dip galvanised coatings on steel: the corrosion-protection reference for the frame's galvanised base. Standards Australia / Standards NZ

Available Separately

Components to Complete the Build

A FlexiFrame is the structural shell. These parts are supplied separately to clad, line and finish it into a building. Most pack one to a 40ft container, while shower modules and PA doors ship in a 20ft.

Steel PA door

Personnel access door with handle and deadlock. Ships in a 20ft container.

Ceiling sandwich panel

2,900 x 1,150 mm, 50 mm core with 0.6 mm steel skins.

Monument sandwich panel

2,450 x 950 mm, 50 mm core with 0.6 mm steel skins.

White angle

6 m length, 50 mm, for edges and corner trim.

White U-channel

6 m length, 50 mm, for panel edging and joins.

Marine plywood

18 x 1,147 x 3,000 mm, for flooring or lining.

Black shower module

1,000 x 1,000 x 2,100 mm pre-fitted shower unit. Ships in a 20ft container.

Downloads

Specifications and assembly guide

Spec sheet and assembly guide for the flat, skillion and pitched container frames, on request.

FAQ

Frequently Asked Questions

Three questions buyers ask most often about container frames.

What is a container frame used for?

A container frame is the structural steel shell for a relocatable or modular building. Builders and resellers use it for tiny homes, site offices, granny flats, carports, modular extensions and pop-up retail, cladding and fitting it out to suit the project.

How long does it take to assemble a container frame?

Most kits bolt together in a few hours with basic equipment and no welding. The frame arrives flat-packed in a steel crate with 8 lifting points, so the main on-site work is setting the crate down, bolting the frame up and squaring it before you clad and roof it.

What is the difference between the flat, skillion and pitched roof frames?

All three share the 6m x 3m footprint and steelwork. The flat roof is the compact, economical base at 2,700 mm. The skillion roof slopes from 2,650 to 3,000 mm to shed water. The pitched A-frame runs 2,720 to 3,070 mm for a residential look and more overhead space.