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COLORBOND Corrugated Iron Roofing Sheets Corrugated Colorbond Diagram Corrugated Colorbond Weight Corrugated Iron Fasteners Diagram COLORBOND® Underside of colorbond

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COLORBOND® Corrugated roofing (Custom Orb), with improved technology and manufactured from the highest quality Bluescope Steel, is now the smart choice when considering your roofing or walling requirements.

What is the steel thickness of this corrugated iron roofing & walling sheet? 

.48 BMT - which is thicker than the standard .42 bmt roof sheets
The thicker 0.48 BMT grade. BMT stands for Base Metal Thickness which is the thickness of the steel before the Zincalume protective layer is applied and the Colorbond paint layer is added. These sheets are stronger than the standard .42bmt.

What is the Corrugated Iron sheet cover? 

762mm is the cover width which allows for 1.5 rib overlap. The actual single sheet width of the corrugated sheet is 850mm wide. 

How long does delivery take?

Delivery takes approximately 3 - 4 working days, depending on location. 


Which fasteners do I use for the corrugated iron?

Here at Metal Roofing Online, we only use and recommend Class 4 screws when installing your roof sheeting as they last considerably longer in the elements. In a standard roofing application, when fixing to either timber or metal purlins, we have in our range a Multifix screw which is the perfect choice for this roofing iron.


We use only the best 100% Australian steel for 100% peace of mind; made from BlueScope’s industry-leading brands such as COLORBOND® and ZINCALUME® steel. And, of course, all our products are extensively performance tested, backed with the strength of the BlueScope warranty and can be relied on with total and absolute confidence. 


Purchase COLORBOND® Roofing and wall cladding in Corrugated Iron Sheet Profile

Please note this is the .48 BMT thickness sheet.  Please see further listings if you require t standard .42 BMT sheet.

Among the world’s most popular metal roofing products due to its high quality and versatility. These corrugated iron roofing panels, which are also known as Custom Orb, are suitable for traditional and contemporary roofing projects alike.

General Info

COLORBOND® roof and cladding sheets are available in a wide array of different colours to match absolutely any building project and is made in Australia using BlueScope steel. Corrugated COLORBOND® is one of the most durable, long-lasting roofing materials available and it’s virtually maintenance-free. Made from hi-tensile steel this profile whilst strong, is also lightweight which minimises sheet damage.

Corrugated sheeting is pierce fixed which ensures easy fixing by the conventional method. To ensure maximum weather protection our Corrugated has a 1.5 rib overlap. The wide cover (762mm) allows for quick installation, saving on both materials and labour. This versatile profile can be used on a minimum roof pitch of 5 degrees.

Here at Metal Roofing Online, we only use and recommend Class 4 screws when installing your roof sheeting as they last considerably longer in the elements. In a standard roofing application, when fixing to either timber or metal purlins, we have in our range a Multifix screw which is the perfect choice for this roofing iron.

When using the corrugated iron sheet in a wall cladding application, there is choice between 12 gauge x 25 mm timber fix screws, when fixing into timber. Othewise, 10 gauge x 16mm will do the trick when fixing into steel.These screws are shorter as they are fixed into the pan (or valley) of the corrugation. "Cover of roofing sheet" : is the measured amount each sheet will cover (including side lap) when layed in position on the roof. IE the cover of a corrugated roof sheet is 760mm or .76 metre. Please consider both resistance to wind pressure and foot traffic for roofing spans. 

Please consider a couple of factors when deciding whether you need .42bmt or .48bmt sheets as roof covering:

Your batten spacing & How often the roof will be walked upon
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).


Maximum Support Spacings (mm)
Types of Span BMT (mm)
0.42 0.48
Single Span 700 800
End Span 900 1300
Internal Span 1200 1700
Unstiffened Eaves Overhang 200 250
Stiffened Eaves Overhang 300 350
Single Span 1800 1800
End Span 2500 2700
Internal Span 2700 2700
Overhang 200 250

For roofs: the data are based on foot-traffic loading.
Walling Sheet spans - please consider wind pressure only.




Order High-Quality Corrugated Roofing from Metal Roofing Online

Construction projects can be tiresome and time-consuming. After months of hard work, everyone hopes to see an eye-catching finish. The roofing that you choose plays a significant role in the final look. When you decide to use corrugated roofing, you should ensure that it is of high quality and easy to order. We, Metal Roofing Online, are here to help you access both quality and fast delivery with ease. Here is why you should order from us: High-quality products - Corrugated roofing comes in different makes and attributes. No one wants roofing that fades and leaks shortly after installation. We deal with the trusted Australian BlueScope roofing. It is of high-quality, built to enhance resistance from damage all year round. It also increases the beauty of your construction. With the impeccable quality and appealing look, your satisfaction is a guarantee.  Affordability - Construction projects can be expensive. You should grab every opportunity you get to lower the overall costs. We are here to make that happen. Despite the impeccable quality of our products, we avail them at the lowest prices possible. The price per unit is affordable, and you might be lucky enough to get a discount for large purchases. Easy and Secure Online Ordering We are here to reduce the stress of putting up a building. You can efficiently and effectively order our products online at the comfort of your home. We have made the process easy and secure. You can place an order within five minutes as you attend to your other duties. You are sure to receive your order in time, and your private information is safe with us. Fast Delivery - We deliver your roofing as fast as possible to avoid any delays in your projects. After receiving your order, we take the shortest time possible to get the material you need to your location. With that, your construction work continues efficiently and conveniently. Whenever you need corrugated roofing, look no further than Metal Roofing Online. We introduce convenience to your construction process. You can quickly and safely order our high-quality products at the comfort of your home. So, do not hesitate to contact us for your roofing needs. You will enjoy the efficiency.


How to Choose the Most Suitable Type of Corrugated Iron Roof for Your Home

Almost all kinds of roofing materials come in various types. For instance, concrete roofing tiles are further divided into curved roof tiles, Spanish-style tiles, flat interlocking tiles and flat shingle-style roofing tiles. If you are planning on having your old roof changed with a corrugated iron one, you may have some difficulties choosing the most suitable type for your home. Below are some tips you can follow to make sure that you will be investing in the most appropriate kind of corrugated iron roofing material for your property:Know the pros and cons of each type of corrugated iron roofing sheet. Go online to read product reviews about each type of iron roofing sheet and take note of all the advantages and disadvantages presented. Look at and study various online roof galleries. Browse various galleries on the Internet to see images of homes with corrugated iron roofs. Choose the ones that you like or you think would complement your home and would offer various benefits for your property. Take note of the product name and colour. You can then print images that reflect what you’re trying to achieve with your home. Talk to an architect, builder or house designer.  The angle and shape of your roof could limit your corrugated iron roofing choices. One of your preferred types may not work for the specific build of your home. As such, to be sure, ask your trusted architect, builder or designer if there are any particular types you should exclude from your choices. Consider the usual and extreme weather conditions in your area. There are some types that can be more prone to rusts and corrosions than others. Some iron-made sheets need some special fasteners, coatings, reinforcement or maintenance for extreme conditions. Your final choice may cost more and take longer to build if you live by the sea, dusty area or in a high-wind zone. Finally, consider the warranty. Depending on the manufacturer, most corrugated iron sheets come with a warranty.  When investing in a roof, you should also highly consider the warranties since some are more comprehensive and last longer than others.


COLORBOND® Roofing Sheets


An innovative, versatile, roof and wall cladding solution.

If you are looking for high quality and smart cladding for your property, these Corrugated Iron metal roofing sheets offer a durable and distinctive finish. They are incredibly versatile and easily trimmed and customised for a range of commercial, industrial and residential projects. The ribs defect weather and assist in conducting water away from the buildings and keep these metal sheets robust yet lightweight. 

This product is delivered in long lengths for maximum utility, with the metal sheets providing coverage from ridge to gutter. The metal sheets also align and overlap readily for cladding. 

Multiple colour-ways to enhance your property's exterior.

Corrugated Iron Colorbond steel roof sheets are manufactured in a range of high quality, rich pigment colours which are tested in the extremes of Australian weather for superb and demonstrable longevity. 

Colorbond sheets are grouped in 5 key colour-ways, inspired by Australia:

  • Matt finish
  • Ultra
  • Classic
  • Fencing
  • Contemporary

Choose among contemporary hues which created a coordinated and stylish finish when combined with other Colorbond products and the rest of your property's exterior decor. Your colour finish is corrosion resistant and designed to be cleaned with water for easy long-term maintenance. 

Fine Australian quality and manufacture as standard with trusted Australian Bluescope roofing.

For over 50 years Colorbond has been used by Australian homeowners and businesses and the demand shows no signs of slowing. These premium metal roofing sheets are fabricated with quality, 100% Australian steel and are engineered for superior structural and thermal efficiency. 5 layers of protection from steel base to topcoat paint are designed to deliver superior protection for your property. In addition, Colorbond steel roofing is fire resistant and compliant for use in bush fire zones. Every unit is delivered with a generous warranty, backed by the manufacturer, Bluescope Steel and authenticated with branded packaging and ink branding on each sheet's underside.  All roofing sheets are offered at the lowest prices with FAST delivery. Simply order online or call our customer assistance team to place your order.