1300 886 944 LOGIN 0




  • 0


Item removed. Undo

Where are you shopping for today?

Delivery State:

Please note: item availability may change.
COLORBOND® TRIMDEK® Roofing Sheets .42 - Victoria Trimdek Diagram Trimdek Weight COLORBOND® Trimdek Span Table Trimdek Span Diagram Trimdek Fasteners Application Underside of colorbond

Please select a state in the header.

Please select a state in the header.


Purchase TRIMDEK COLORBOND® Roof Sheets - for use on roof pitch of 2° or greater. Order online, contact our customer care team on 1300 886 944 or email. 


This COLORBOND® steel lysaght metal 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. The actual sheet width is 820mm.

What is the steel thickness?
.42 BMT is the standard thickness of our BlueScope Lysaght 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, depending on location. 

How much should I allow into the gutter?

It is usual to allow metal roofing 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 COLORBOND® steel Trimdek Lysaght 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.

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.


Metal Roofing Online: with steel supplied by Australian BlueScope Steel

Looking for the lowest price and the fastest delivery? Metal Roofing Online, with steel from Australian BlueScope Steel can supply all your metal roofing needs. A correctly installed metal roof will last as long as the house itself. Metal roofing survives high winds, seals out water and sheds snow. It is resistant to insects, mildew and fire. There are so many advantages of metal roofing. not only does metal roofing increase energy efficiently, it reduces the maintenance and operating costs. There is a positive impact on the performance of constructing by providing sustainability, durability and longevity. Th benefits of metal roofing far outweigh traditional types of roofing. 

Great Performance: Metal roofing is fire resistant and has a proven expectation of performance of over fifty years. Metal roofing for residences is a fast-growing segment of home improvement for a good reason. In the past years, more and more people have opted to install metal roofing more than any other type. You get true value of money with the interlocked panels that resist winds. There are great styles and colours to match your neighbourhood or your home. The broad variety of colours can match any theme you have in mind. Order roofing online or through our team of customer care. 

Heat Resistant: Unlike other types of roofing, metal roofing by is able to resist the sun's heat. This lessens heat during the midday and keeps residents cool no matter how high the temperatures get. You can save energy necessary for daily air conditioning. The low insulation metal roofing can even be applied over foam rigid insulation with the highest R values. Plus, dead air space between the roof deck and the metal increase the energy efficiency in every home or commercial space. 

Fast Delivery: The moment you place your order with Metal Roofing Online, steel supplied by Australia BlueScope Steel, you can be sure your metal roofing and roofing supplies will arrive in a timely manner. We offer the lowest prices and the most rapid delivery methods. We know the value of a good referral and strive to exceed your every expectation. As a matter of fact, give us a call today or get in touch with our team and we can discuss your project. We can supply all your roofing and roofing supply needs and aim to deliver before the deadline. 


Ordering COLORBOND® Trimdek Roofing Sheets

Trimdek roofing sheets are made of high strength steel and it provides an excellent capacity to span. They are light in weight and have a remarkable character of recovering from a deformation. Its high strength and spanning capacity along with rigidity and lightness makes it a versatile roofing sheet to use wide support spacing. Metal roofing online has been supplying these high-quality Trimdek roofing sheets in Australia. To place an order Trimdek roofing sheets, you can call our support team at 1300 886 944. You can also order using a filled online request. 

1. Placing an order.

When you place an order with us, you can choose a wide range of colours and lengths ranging from one to 10 meters. You can also specify the shipping address in Australia for delivering at your doorsteps. We offer Trimdek roofing sheets at the lowest prices and fast delivery from Metal roofing online.

2. High-Quality Sheets.

We have an easy and secure online ordering which you can rely on for all your Trimdek and COLORBOND® roofing supplies. All our roofing sheets are made from trusted Australian Bluescope steel roofing, that has high quality and durability.

3. Sheet Thickness.

Our Trimdek roofing sheets have a cover width of 762mm and .42 BMT thickness, which is the standard thickness of BlueScope Lysaght Steel roofing sheets. You can also get thicker Trimdek sheets with .48 BMT for heavy-duty and sturdy performance.

4.Delivery Time.

When you place your order, our dedicated team strives to deliver your roofing sheets as fast as possible to your shipping address. Usually, the delivery takes about 3-4 working days after you place the order. The delivery time may vary slightly, depending upon your location.

Metal roofing online is a reputed and a leading supplier of BlueScope's leading brands in roofing sheets such as Colorbond and Zincalume in Australia. We ensure that you get quality roofing sheets that are extensively tested for strength, durability and resistant to corrosion. You can safely order roofing sheets from Metal roofing online as these roofing sheets are covered by the manufacturer's warranty which you can trust safely. We are just a phone call away to guide, answer your questions or place an order. You can call us at 1300 886 944 or send us an email enquiries@metalroofingonline.com.au. Our friendly support team will be glad to respond to your request promptly.