Steel Source Australia supplies the complete range of BlueScope COLORBOND® and Zincalume® roofing and wall cladding profiles — corrugated, Trimdek®, Klip-Lok® 700, Spandek®, Corodek® and COLORBOND® Ultra — cut to length and delivered Australia-wide. All sheeting is manufactured from genuine BlueScope steel conforming to AS 1397:2021 and AS/NZS 2728:2013, backed by BlueScope warranties.
AS 1397:2021
All COLORBOND® and Zincalume® steel conforms to AS 1397:2021 — the Australian Standard for continuous hot-dip metallic coated steel sheet and strip. Grade G550 AZ150 is the standard specification for roofing and walling.
AS/NZS 2728:2013
Prepainted (organic coated) steel sheet products for interior and exterior building applications. COLORBOND® steel meets the requirements of this standard for exterior durability and colour retention.
AS 1562.1:2018
Design and installation of sheet roof and wall cladding (metal). Governs minimum pitch requirements, fixing centres, lap dimensions and flashing details for all metal roofing profiles.
NCC 2022 / BASIX
Solar Absorptance (SA) values for all COLORBOND® colours are published by BlueScope per ASTM E 903-96. Selecting a colour with SA ≤ 0.45 may assist NCC 2022 and BASIX energy compliance.
46 SKUs across 7 profiles. All sheeting is cut to length — specify your exact sheet length when enquiring to eliminate on-site cutting waste. Expand each profile for full technical specifications and SKU details.
All Solar Absorptance (SA) and Solar Reflectance Index (SRI) values are sourced directly from BlueScope steel.com.au, published 23 August 2022. SA is measured per ASTM E 903-96; SRI per ASTM E1980-11. These are nominal values for new product — actual performance is subject to weathering and local conditions. Colours marked Ultra are available in COLORBOND® Ultra for marine environments.
Dover White™
Surfmist®
Southerly®
Shale Grey™
Classic Cream™
Paperbark®
Evening Haze®
Dune®
Bluegum®
Windspray®
Pale Eucalypt®
Gully®
Jasper®
Wallaby®
Basalt®
Woodland Grey®
Ironstone®
Deep Ocean®
Monument®
Cottage Green®
Manor Red®
Night Sky®
Colour accuracy disclaimer: Colour swatches shown are approximate digital representations only. Screen calibration, ambient lighting and device settings will affect perceived colour. Always check your chosen colour against a physical COLORBOND® colour sample before specifying. Contact Steel Source Australia or visit colorbond.com to order a physical colour sample.
Selecting the correct profile and material grade for your project requires matching three variables: roof pitch, environment (corrosivity classification), and aesthetic requirement. The matrix below summarises the key decision points.
≥ 5°
Corrugated, Trimdek®, Corodek® (pierced fix)
3°–5°
Corodek® (pierced fix) or Klip-Lok® 700 (concealed)
1°–3°
Klip-Lok® 700 only (concealed fix mandatory)
Vertical wall
Spandek® (concealed) or corrugated (pierced)
Inland / suburban (C1–C2)
Standard COLORBOND® or Zincalume®
Light industrial (C3)
Standard COLORBOND® — check warranty zone
Marine 1–1km (C4)
COLORBOND® Ultra mandatory
Severe marine < 100m (C5)
SUPERDURA® Stainless — contact us
NCC/BASIX cool roof
SA ≤ 0.45: Dover White™, Surfmist®, Classic Cream™, Shale Grey™, Paperbark®, Evening Haze®
Moderate
SA 0.45–0.60: Dune®, Bluegum®, Windspray®
Maximum solar gain
SA > 0.60: Ironstone®, Monument®, Night Sky®
Commercial cool roof
COLORBOND® Coolmax® Whitehaven® SA 0.23
COLORBOND® Ultra is required by the BlueScope warranty for projects within 1km of breaking surf (C4 corrosivity classification per AS/NZS 2312.2:2014 and BlueScope Technical Bulletins 1A and 1B). Using standard COLORBOND® in a C4 environment will void the BlueScope warranty and result in premature corrosion — typically visible within 3–5 years in severe coastal locations. Steel Source Australia stocks COLORBOND® Ultra in all 7 available colours across corrugated, Trimdek®, Klip-Lok® 700 and Spandek® profiles.
For sites within 100m of breaking surf (C5), SUPERDURA® Stainless steel is required. Contact our technical team for SUPERDURA® pricing and availability.
The following Australian Standards and codes govern the specification, supply and installation of metal roofing and wall cladding in Australia. Steel Source Australia supplies material that complies with all applicable standards — your installer is responsible for compliance with installation requirements.
Continuous hot-dip metallic coated steel sheet and strip
The primary material standard for COLORBOND® and Zincalume® steel. Specifies coating mass (AZ150 = 150g/m² aluminium/zinc alloy), mechanical properties (G550 = 550 MPa minimum yield strength), and dimensional tolerances. All BlueScope coated steel products comply with this standard.
Prefinished/prepainted steel sheet products for interior/exterior building applications
Governs the paint system applied to COLORBOND® steel. Specifies minimum dry film thickness, adhesion, flexibility, salt spray resistance and UV durability requirements. COLORBOND® steel meets or exceeds all requirements of this standard.
Design and installation of sheet roof and wall cladding — Metal
The installation standard for all metal roofing and wall cladding in Australia. Specifies minimum roof pitches, purlin spacing, fixing requirements, lap dimensions, flashing details and weatherproofing requirements. Compliance is mandatory under NCC 2022.
Guide to the protection of structural steel against atmospheric corrosion
Defines corrosivity categories C1 through C5 for Australian environments. Used to determine the appropriate BlueScope product grade for a given site — standard COLORBOND® for C1–C3, COLORBOND® Ultra for C4, SUPERDURA® Stainless for C5.
National Construction Code — Weatherproofing
Volume 1 (commercial) and Volume 2 (residential) both require that roof and wall cladding systems prevent the entry of water that could cause damage or unhealthy conditions. Metal sheeting installed per AS 1562.1:2018 satisfies this requirement.
Cold-formed steel structures
Governs the structural design of cold-formed steel members including purlins, girts and structural sections used in conjunction with metal roofing and wall cladding. Relevant when specifying purlin spacing and fixing requirements for sheeting loads.
Steel Source Australia supplies all roofing and wall cladding cut to your specified sheet lengths, eliminating on-site cutting waste and reducing installation time. Provide your sheet lengths, profile, colour and quantity — we'll confirm availability and lead time within one business day.
Need a take-off? Our estimating team can produce a complete bill of quantities from your plans using AppliCad Roof Wizard. Learn about our take-off service →