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The more ductile corrugated roof and wall cladding that is suitable for bullnosing or curving into a range of concave and convex shapes.

  • Ideal for traditional bullnosed verandahs
  • Can be curved into an array of designs
  • Nominal cover width: 762mm
  • Minimum roof slope: 5°

Technical Specifications



Sheets are supplied custom cut to length. Minimum and maximum lengths apply. Please contact your nearest LYSAGHT® office for your region for more information.


Length: +10 mm, -10 mm
Width: +4 mm, -4 mm

Material Specification

Next generation ZINCALUME® aluminium/zinc/ magnesium alloy coated steel complies with AS 1397:2011 G300, AM125 (300 MPa minimum yield stress, 125 g/ m2 minimum coating mass).

COLORBOND® steel is prepainted steel for exterior roofing and walling. It is the most widely used. The painting complies with AS /NZS 2728:2013 and the steel base is an aluminium/zinc alloy-coated steel complying with AS 1397:2011. Minimum yield strength for CUSTOM BLUE ORB is G300 (300MPa). Minimum coating mass is AM100 (100g/m2).

COLORBOND® Metallic steel is prepainted steel for superior aesthetic qualities displaying a metallic sheen.

COLORBOND® Ultra steel is prepainted steel for severe coastal or industrial environments (generally within about 100-200 metres of the source). The painting complies with AS /NZS 2728:2013 and the steel base is an aluminium/ zinc alloy-coated steel complying with AS 1397:2011. Minimum coating mass is AM150 (150g/m2). Minimum yield strength for CUSTOM BLUE ORB is G300 (300MPa).Minimum coating mass is AM150 (150g/m2).

SuperDura™ Stainless steel is pre-painted steel and is used for severe and coastal environments. The painting complies with AS/NZS 2728:2013 and the steel base is a stainless steel complying with AISI/ASTM Type 430; UNS No. S43000.


Finish BMT Mass
(mm) kg/m kg/m2 m2/t
ZINCALUME® 0.60 4.59 6.02 166
COLORBOND® 0.60 4.64 6.09 164
ZINCALUME® 0.80* 6.06 7.96 126
COLORBOND® 0.80* 6.12 8.03 125

* 0.80mm BMT CUSTOM BLUE ORB® is available in South Australia as galvanised only.

Span Table

The maximum recommended support spacings are based on testing in accordance with AS1562.1-1992, AS4040.1-1992 and AS4040.2-1992.

Roof spans consider both resistance to wind pressure and light roof traffic (traffic arising from incidental maintenance).

Wall spans consider resistance to wind pressure only. To view full limit state wind pressure capacity tables please download LYSAGHT CUSTOM ORB® & CUSTOM BLUE ORB® Design & Installation Guide.

Maximum Support Spacings (mm)
Types of Span BMT (mm)
0.60 0.80
Roofs including Bullnosed Roofs
Single Span 1600 1800
End Span 1600 1800
Internal Span 1800 2600
Unstiffened Eaves Overhang 200 400
Stiffened Eaves Overhang 300 600
Single Span 2400 2400
End Span 3000 3200
Internal Span 3300 3600
Overhang 200 400

Capacity & Load Tables

The limit state wind pressure capacity table can be viewed in the LYSAGHT CUSTOM BLUE ORB® brochure. Download LYSAGHT CUSTOM ORB® and CUSTOM BLUE ORB® (1516 KB)

This information is suitable for use only in areas where a tropical cyclone is unlikely to occur as defined in AS1170.2-2002.

For correct specification and installation of Lysaght roofing and walling products in cyclonic areas, please Download LYSAGHT® Cyclonic Area Design Manual Steel Roofing & Walling.

Roof Drainage Capacity

Download LYSAGHT® Roofing & Walling Installation Manual (2764 KB) - Chapter 2 Design Preliminaries - to view Table 2.14.1, Maximum Roof Lengths for Drainage.

NCC of Australia Compliance

LYSAGHT® products comply with the National Construction Code of Australia (NCC).


Brochures & Catalogues

LYSAGHT® Build On Inspiration - Design in Steel PDF(17.46 MB). Last updated 26 Apr 2022


New South Wales & ACT
Northern Territory
South Australia
Not Available

Colour Range


  1. Basalt®
  2. Classic Cream™
  3. Cottage Green®
  4. Cove®
  5. Deep Ocean®
  6. Dune®
  7. Evening Haze®
  8. Gully®
  9. Ironstone®
  10. Jasper®
  11. Mangrove®
  12. Manor Red®
  13. Monument®
  14. Night Sky®
  15. Pale Eucalypt®
  16. Paperbark®
  17. Shale Grey™
  18. Surfmist®
  19. Terrain®
  20. Wallaby®
  21. Windspray®
  22. Woodland Grey®

Unpainted Steel Range

  1. ZINCALUME® steel

COLORBOND® steel Studio Library

COLORBOND® steel Studio enables you to browse over 200 COLORBOND® steel colours. Search by RGB or HEX colour values or DULUX or RAL colour names to return the closest match from over 200 available colours.

The COLORBOND® steel colour swatches shown have been reproduced to represent actual product colours and finish as accurately as possible. However, we recommend checking your chosen colour against an actual sample of the product before purchasing, as varying light conditions and limitations of the printing process may affect colour tones and finish. All colours & finishes may not be available in all regions or for all profiles. To determine the most suitable material for your project, please contact your supplier or


Pricing for all our products varies based on availability and quantity.


Phone (Mon-Fri, 9AM-5PM AEST/AEDT):

1800 641 417

100 Years Celebration

LYSAGHT® products have been made in Australia for 100 years.