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

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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. A thicker .48 BMT COLORBOND Trimdek sheet is also available. 


Which fasteners do I use for installing the roofing sheets?
Here at Metal Roofing Online, we only use and recommend 12 x 65 timber fix fasteners when installing your roof sheeting as they last considerably longer in the elements. These are able to colour matched to your sheets. 


How long does delivery take?
Delivery takes approximately working 3 - 4 days once the order has been placed. 


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.












Roof sheets

Having a construction project and wondering where to purchase your roof sheets? Well, worry no more. Metal roofing Online.com.au is the perfect roofing solution for you. So, if you are wondering where you can secure quality roofing sheets at an affordable price, we got you covered. Here are some of the reasons why you should buy from us. Lowest price: We sell quality roofing sheets at very low prices. Yes, our quality is good, ranging from colorbond roofing corrugated, zincalume corrugated, steel roofing, and other quality materials. So, want to purchase your quality iron sheets, give us a call. Fast delivery: We do delivery within the shortest time possible. Where you want the roof sheets to be delivered, we reach there. Easy and secure online ordering:Our payment and ordering methods are easy and quick. We accept major credit cards and online payment, including PayPal, is allowed.  Trusted Australian BlueScope steel roofing:We are suppliers of roof sheets made in Australia. Our BlueScope quality steel roofing is trusted, and our customers come back frequently. So, looking for a quality roofing solution, contact us. We are ready to serve you and deliver your order at your desired destination.

Colorbond Roofing- hire roofers for installing the roof.

The Roof is known as the first line of defence for your household as it protects you and your family from every kind of dangers like burglars, thieves, wild animals and extreme weather conditions. Therefore you will need to make sure that you are opting for Colorbond roofing that is the most popular kind of roof that you can install at your home. For easy and secure online ordering, you will need to visit Metal Roofing Online as it will help you get the best quality products at lowest prices. With trusted Australian-Bluescope steel roofing, you will enjoy living in your home that has the best roof and you will get lowest prices on corrugated iron for the best protection from different elements. With fast delivery, you will be able to get the roofing material delivered at your doorsteps.

Reasons to select the best roofing material for your home.

The Roofing of your home functions all year round for helping you face the extreme weather conditions and remain protected inside your property. But for this you will need to look for trustworthy roofing suppliers who will offer you the best roofing and guttering material at attractive prices. You will also enjoy secure and easy online ordering online for getting high quality materials for your roof so that your belongings will stay safe inside your property. You will get trusted Australian- Blue-scope steel roofing at lowest prices and fast delivery so that your home will get a strong and sturdy roof for the rest of your life. When you get lowest prices on roofing materials and corrugated iron, you can be rest assured that your roofing system will be installed in the most affordable manner. The roof plays an important role in helping you get the kind of safety and security that you are looking for so that you will get complete peace of mind.

Know the benefits of Trimdek and its applications.

Trimdek is the best solution for your roofing system as it helps in providing strength and durability to your roof so that you will enjoy a safe and secure property. It is the best option for your commercial and industrial applications that is known for its versatility, functionality and design for a visually appealing look. Lowest prices on corrugated iron and excellent spanning capabilities will help you in using this product for your roofing system for enhanced lifespan and longevity. Easy and secure ordering of the Trimdek will offer the right amount of protection and security to your property so that you will get economical and money saving benefits. It comes with proven and long lasting benefits as the roof will last for a long period of time with fast delivery so that your roof will become reliable and strong. The trusted Australian Bluescope steel roofing system offers benefits like improved thermal performance for keeping your property cool during the summer months.

Trimdek- Select the best roofing material for your roofs.

If you are confused about what is the best roofing material for your home then you should consider Trimdek as it is one of the best options for your roofing material. It will last longer than any other material that you need for your property and hence you should consider hiring the best professionals for the roof installation project. You will enjoy easy as well as secure online ordering of the roofing material at your doorsteps so that your home will enjoy its benefits for a longer duration of time. For ordering Trimdek, you need to contact as it will offer you all the information pertaining to the roofing material purchase at lowest prices and with fast delivery. You will get a roof that will function optimally for protecting the people and valuables kept inside the property as the roof. You will enjoy installing a roof that is known for its high quality look, beauty and functions that it performs for a long period of time.