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Our steel is: Australian Made BlueScope Steel. Call our Customer Service Team on 1300 886 944 or email: sales@metalroofingonline.com.au

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COLORBOND Corrugated Iron Roofing Sheets Corrugated Colorbond Diagram Corrugated Iron Fasteners Diagram

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Queensland deliveries: COLORBOND® Corrugated Iron. 

These sheets are among the world’s most popular metal roofing materials due to its high quality.

What is the corrugated iron sheet coverage?
762mm (which allows for the 1.5 rib overlap)

What is the Steel thickness?  
.42 BMT is the standard thickness of these Australian Made BlueScope Steel sheets. 

Which fasteners do I use for installing the heets as roofing? 
We recommend 12 x 50 Multifix fasteners in matching COLORBOND® colour. 

Delivery takes approximately 3 - 4 days.  

Purchase COLORBOND® Corrugated Roofing & Wall Cladding.

What is the Steel thickness?  
.42 BMT is the standard thickness of our Australian Made BlueScope Steel sheets. 

What is the sheet cover - 
762mm (which allows for the 1.5 rib overlap)

How much should I allow for the sheets to run into the gutter?
We recommend 50mm overhang into a standard gutter.

What is the ACTUAL sheet width? 
The actual sheet width of corrugated iron is 850mm.  

Which fasteners do I use for installing the roofing sheets?
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. These are able to colour matched to your sheets. 


COLORBOND® Corrugated Iron Roof Sheets are among the world’s most popular metal roofing materials 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. The Colorbond corrugated iron is made in Australia using Bluescope steel.

Colorbond roofing materials are available in a wide array of different colours to match absolutely any building project. Moreover, the Sheeting 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.


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).

Wall spans consider resistance to wind pressure only.

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.







5 Things to Think About Before Replacing Your Colorbond Roofing



Changing roofs is not only done because of necessity, like when it’s become damaged beyond repair. A lot of people actually choose to change their roof simply because they want a new style. If you’re thinking of replacing your home’s Colorbond roofing with new sheets and roofing implements, it’s important to consider a few things so that not only will you be thoroughly happy with the new look, but you can also be sure that this project will enhance the main function of your home’s topmost covering. Listed below are five things to consider before carrying out this home improvement effort: See how well it goes with your surroundings. Whether the new Colorbond roofing stands out or blends into your surroundings, you need to make sure that it achieves pleasing aesthetics. Also, don’t just take into consideration your natural surroundings, especially if you live in an exclusive location; think about the look of your community as well. Your community may have policies regarding maintaining standards of appearance; find out about that first and avoid conflict with your neighbours. Do you want a uniform appearance for your roof, or do you wish to combine hues? Colorbond roofing products come in a vast range of colours to choose from – you may want to mix and match to see the different possibilities in enhancing the look of your home. Consider additional features of certain roofing products. There are roofing sheets and other items that have been designed for superior protection against elements, including fire. If your area is prone to bushfires, you may want to opt for those Colorbond roofing sheets that can retard fire. Conduct online research to find out more about the full range of products that can provide this benefit. Take the climate and environmental conditions into account, too. If you live near the beach where the air is salty and can morph the colour and structural integrity of traditional roofing products, perhaps you should look into Colorbond options that have been developed to better perform against the unique conditions of the area you live in. Price is something to think about as well, especially when it comes to BlueScope Steel products like Colorbond.







The greatness of  Corrugated Iron


Corrugated Iron Roofing is durable, lightweight and easy to install. If a few extra precautions are taken with handling and fixing, the finished product will be greatly improved. White Rust - Over half of the mistakes made while constructing a corrugated iron roof can be traced back to incorrect storage or handling. The iron has been handled and stored correctly because the surface is very easily damaged. Leave the metal roofing at the manufacturers until you are ready to start installing it. Aim for delivery the day before roofing starts. If the roofing iron arrives before you are able to fix it, you must ensure it is kept bone dry. It is a common mistake to assume that because they are roofing sheets, they can withstand moisture. If the roofing sheets are stacked together and they get wet, they will stain. White rust forms on the coating and it is very difficult to remove. If your roof sheets get wet, separate each individual sheet. Use bearers to allow airflow around the metal. This will prevent the corrosion. Gently does it - As for handling, care needs to be taken in order to damage the paintwork. Sliding sheets across one another will damage them. When separating the roofing sheets, you should lift them cleanly upwards without scratching the one underneath. Scratches - If you find scratches on your roofing during installation resist the urge to paint it. The paint may well look like a good match from the tin, but after a couple of seasons weathering the patched paintwork will stick out like a sore thumb. Contact the manufacturer and ask for advice on making repairs to their product. Laying the roofing - Before you start laying the roofing sheets check that the roof is square. If the roof is not square, you can still achieve a good finish if you even out the difference, between the two barges. The difference will then be less noticeable as it will be covered by the barge flashing. Run a string line along the eaves, 50mm into the gutter and it will provide you with a straight edge for the roofing sheets. Clean up - On completion, it's important to clear the roof of any loose swarf. Tiny particles of iron left on the roof will rust and ruin the surface. A soft brush will do the job or ideally, a leaf blower can be used. A well installed corrugated iron roof will give years of maintenance-free service. If you take a little extra care with the preparation and fixing, you will achieve a superior finish.Purchase your COLORBOND® roofing from Metal Roofing Online. Trusted Australian Bluescope Steel, covered by warranty. Easy, secure online ordering.Fast delivery. Lowest prices



Corrugated iron
 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 fixing roofing 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.