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COLORBOND® TRIMDEK® Roofing Sheets .42 - Victoria Trimdek Diagram Trimdek Weight Trimdek Span Table Trimdek Span Diagram

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For use on roof pitch of 2° or greater.

This roofing profile is a long spanning cladding permitting wide support spacing & is a versatile, strong yet lightweight profile.

What is the sheet cover?
Cover width is 762mm. Actual sheet width is 820mm.

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

How long does delivery take? 

Delivery takes approximately working 3 - 4 days. 

How much should I allow into the gutter?

It is usual to allow roof sheets to overlap into gutters by about 50mm. If the roof pitch is less than 25° or extreme weather is expected, the pans of sheets should be turned-down at lower ends, and turned-up at upper ends by about 80°. Turn your Trimdek Sheets up or down using this Trimdek Tool


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. 


Also known as: Trimclad, Superdek and Monoclad Trimdek metal roofing sheets are used on roofs with a minimum of 2 degree of fall or greater.  It is screw down metal deck roofing iron, which makes it very easy to install. These roofing sheets are a cost effective alternative to Klip-Lok roofing sheets. It sits well in both domestic and commercial applications.

Steel thickness - .42 BMT

Cover width of sheet - 762mm (same cover as corrugated iron) The neatest way to cut the roofing sheets is with tin snips.

Your home is likely to be your biggest financial investment and your largest asset. Having a BlueScope warranty covering the important steel building products in and around your home is an investment in peace of mind.

COLORBOND® steel is developed for, and therefore more resilient to, the severe sunlight and temperatures typical of Australian environments. BlueScope scientists have tested COLORBOND® steel in some of Australia’s harshest climates. 

Rest assured that COLORBOND® steel is guaranteed to meet relevant Australian standards. Make sure you look for the brand as not all painted steel is genuine COLORBOND® steel.



Recommended Fastening Method

When fixing into timber battens, we recommend a 12 gauge x 65mm Type 17 Hex Head screw. If fixing into steel purlins, please use a 12 gauge x 55mm Steel Fix Hex Head screw. When using the sheets as wall cladding, a 12 gauge x 25mm Type 17 Hex Head should be used for timber battens and for steel purlins, a 10 gauge x 16mm Steel Fix Hex Head screw is best.



Trimdek, in particular, pertains to square-fluted steel cladding that is available in long lengths. This means that one sheet can be used from ridge to gutter without having any end laps. Trimdek is remarkably strong (it can easily recover from deformation), it has excellent spanning capacity, it is lightweight, and it is properly rigid. And of course, it is available in a wide variety of colours that Colorbond roofing steel is well known for — earthy colours that reflect Australia's distinct landscapes.

Keep in mind that your house needs as much care and attention as its other features do. By choosing the best materials, like Trimdek roofing, your home can truly show your neighbourhood what a stunning mix of beauty and function truly looks like.








How to Boost Safety During Colorbond Roofing Installation


Installing Colorbond roofing is a relatively straightforward and simple process. This is why many property owners looking to save a few dollars are enticed to DIY the installation of their new roofs. However, if you are planning to install new roofs on your home, you have to be aware of some of the risks involved with this task. In order to minimise, if not totally eliminate, the risks involved with the installation of metal roofs, here are a few tips that you should follow. Conduct a visual inspection of the work area Before even beginning with the actual installation of the metal roof panels, make sure that you carefully inspect the area you will be working on. Make sure that there are no weak spots on the roof which can lead to falls. If you are going to use anchors or special equipment used previously by the workers, make sure that these are stable and are still in good order. Make the necessary preparations After conducting a thorough visual inspection of the work area, the next task at hand is to identify the best points of access. Ideally, the point of access that you should choose to use should be free of obstructions and hazards. If possible, remove the hazards and other obstructions that you find. Before climbing on a ladder, make sure that it is positioned correctly and is stable and secure. If you need to bring materials on top of the roof, find an area that is both accessible and stable to place these. If there are structures like skylights or even holes on the roof, make sure that these are covered properly before starting with the metal roofing installation. Check the weather before your scheduled work. As much as possible, avoid working on the roof when it is raining. Reschedule the installation to another date. Use a fall protection system. A fall protection system can dramatically decrease the risks of falls and fatalities by preventing a person from falling from the roof to the ground or a level below the roof. This safety system is comprised of an anchor point which is connected to the harness worn by a person. These two components are connected together by a safety line. Be aware and mindful. Whenever you are working from heights, you have to be aware of your surroundings and avoid distractions which can lead to unnecessary accidents. Planning on installing metal roofing on your home? Make Metal Roofing Online your next stop. We’re a leading BlueScope steel supplier.









Bluescope Lysaght was founded on 1918. It has been contributed to Australian Architectural Style, While doing that, Metal Roofing Online offer products in lowest price range. The roofs are well designed and made to match the different condition in the different part of the world. It has a a very tolerant nature relating to different climate condition. We offer a option for fast delivery also so that our customer should be fully satisfied by our service. All the products we sell are 100% original and made in Australia. All our products are checked go through extensive performance test before reaching you and it is backed by BlueScope warranty. Our products are purely original and can be relied upon with total and absolute confidence. We have roofs of various colours starting from Basalt to Woodland Grey and all the colours in between. Choose from your favourite colour no matter what it is. We have provided roofs for most manner of companies, some distinct and some similar. But our most favourite distinct story is of, us providing shelters to animals, animals who were lost or abandoned. Providing those animal with shelter, care and new homes, which made us very proud. We think of customers before anything else and see that they are fully satisfied and feel comfortable by using our products. We assure our customers that we only sell Trusted COLORBOND® Australian BlueScope Steel roofing products and to top it off we offer our lowest prices. You can check the company Brochures, Technical Specification and manuals for more information regarding the product so that you are 100% sure that you have the original product. While doing that you can also choose your favourite colour which you want to install in your home(s). We will provide you with as much support as you want to check our product and be confident about the roofs that you are going to install in your house.

Colorbond Roofing And Bottom Line: Why Order From Metal Roofing Online

In Australia, you will find various roofing solutions available on the market that can cater to all budgets. But colorbond roofing is one of the roofing solutions that is gaining popularity among property owners. This is because of its durability and versatility as it can take many shapes in regard to the roofing design that you want. Consequently, purchasing colorbond roofing materials from a trusted and a genuine supplier should be paramount to ensure that you are getting the best products for your roofing project. One of the best suppliers where you can buy colorbond roofing materials is metal roofing online as well as other metal roofing materials. The following are a few advantages you enjoy when you select metal roofing online to supply you with roofing products: Lowest prices: they are one of the suppliers whose roofing materials are priced competitively yet pocket-friendly. When you order colorbond roofing materials for your next project from us you will find that the prices of the products are the on the lower end for the benefit of our customers. Fast delivery: when you order colorbond roofing materials from us you will be delighted by the services that they give to their clients. The products are delivered to you within the shortest time possible coupled with friendly staffs who pay attention to details. Made from genuine BlueScope steel in Australia: cladding sheets and colorbond roofing materials that you buy at metal roofing online are manufactured in Australia using genuine BlueScope Steel. In addition, cladding sheets and colorbond roofing come in different colours so you can choose the one that matches your project details eliminating the need for painting later when the project is completed. Secure and easy online ordering: the website is also user-friendly making the process of ordering colorbond roof materials as well as other metal roofing products easy and secure. What you are required to do is just go online and complete your profile then continue to shop and order the materials that you want to be delivered to you. It is that simple. In conclusion, note that colorbond roofing is one of the long-lasting, most durable metal roofing materials available on the market today and it needs little maintenance. Made from BlueScope Steel in Australia this strong while lightweight product also minimises the risks of your roofing damage from environmental conditions. Order online or call metal roofing online today to order colorbond roofing materials as well as other metal roofing products for your next project. You can make a call or send an email to the company representatives to get clarifications on the questions that you might be having.