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or email: sales@metalroofingonline.com.au

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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. 

Sheet Tolarance: Length: + 10mm, – 15mm; Width: + 4mm, – 4mm Make allowance for thermal expansion or contraction for long length roofs at sheeting ends

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.




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.




Corrugated Iron and Colorbond roofing- Reasons to install the roof.


Whether you are renovating your home or building a new home, you will need to pay attention to all the elements of your home including the roof which is an integral part of your property. It is crucial that you assess the pros and cons of each roofing materials so that it will become convenient for you to determine the best roof that you should install at your property. There is a wide variety of roofing material that you have to install at your home but the best option for you is to consider Colorbond roofing that offers a host of benefits for your living space. It will allow you to give an amazing makeover to your home because this roof is known for its aesthetically pleasing look and beauty. Regardless of the style of roof that you want to install at your property, you can always opt for corrugated iron roof that will offer you many benefits that you could ever imagine. It is an energy efficient option that is known for its longevity as it require minimal care and maintenance for making the metal roof the most popular option among homeowners. For the purchase of the metal roofing sheets, you should visit Metal Roofing Online, where you will get the highest quality material at the most attractive price. 


There are many reasons why you should consider installing Colorbond roofing and the most important reason is that is known to reflect the solar heat that helps to reduce the interior temperature. It also helps in saving on the cooling costs because the roof helps in keeping the indoor temperature cooler so that you can save money on the energy costs. Moreover metal roof also have fire resistant properties so that you will not have to worry about getting affected by fire accidents or injuries. Therefore you should consider buying the Trusted “Australian- Bluescope steel roofing” that will last longer than expected so that you will not have to spend money on its replacements. Moreover, the lightweight of the metal roofs will also eliminate the excess burden that exists on the building structures so that you will enjoy complete peace of mind. Furthermore, there are many other reasons of using this roof because corrugated metal sheets are especially treated with effective chemicals that make it resistant to algae and mold. Hence you will not have to worry that your family members will be affected due to the adverse effects of mold as it can cause serious health concerns. With easy as well as secure online ordering, you can be rest assured that you will get Colorbond roofing that will build to last as it can work excellently for a large number of years without getting damaged or need to replace the roof. You will need to only repaint the surface of the roof so that it will last many years without getting affected in any manner. There are many beautiful and attractive designs of the roof that you can select so that it will complement the architecture and styles of your entire property. These metal roofs can easily be customized for helping you get the feel and look that you want so that it will enhance the appearance and functionality of your home. 


There are different kinds of look that you can accomplished with the help of corrugated iron look which includes classical corrugated look, paneled effects so that it will make your home look even more attractive. You will get the roofing sheets with fast delivery and at fastest prices so that you will enjoy using the roof that will increase the resale value of your property. These metal roofs can easily be shaped and bended into all the designs and shapes so that you will make it look even more attractive and aesthetically appealing. It is an innovative option for your property that allows you to get rid of any kind of issues within a short span of time. Moreover as these roofs do not rot, it will be beneficial for you as your investment will remain intact and you will enjoy using the roof for longer period of time. It also allows you to live with your family peacefully without worrying about any kind of damages or dangers.