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From our start in prefabricated timber roof trusses to our current extensive and growing range of timber and steel building products…proudly Canberran for 55 plus years and counting

A lifetime of experience in timber frames and trusses…

CRT Building Products has been manufacturing building materials right here in Canberra since 1964.  Over all of those years of servicing the local building industry we have developed an enviable reputation as the regions’ leading supplier of prefabricated timber wall frames, roof trusses and floor systems.

Our purpose built 15,000m2 factory is the largest in Mitchell and is equipped with state of the art production lines.  A continual investment in the latest technology, such as our Virtek laser projection systems and Hundegger CNC multi-head saws, along with our skilled workforce, allows for rapid and precise production of prefabricated timber components of the highest quality.

With an eye to sustainability, Australian regrowth timber is sourced locally whilst we use 100% H2 treated, termite resistant pine to ensure a lifetime quality product.

Our in-house team of detailers boast decades of combined experience and unsurpassed knowledge of local conditions and building practices, whilst our fleet of purpose built trucks and a team of the industries’ most experienced and dedicated drivers will ensure your products are delivered safely and with a minimum of fuss.

Canberra’s trusted source for metal roofing…

In 2005 CRT Building Products broadened its’ offer to the local building industry by joining the national Steeline group of Australian-owned metal roofing and steel building product specialists and launching Steeline Canberra.  This enabled us to manufacture an extensive range of steel roofing and cladding products in Australian Colorbond® steel at competitive prices.  Since then, Steeline Canberra has grown to become one of the region’s most trusted suppliers to local roofers and DIY enthusiasts alike. 

Here again we have continued to invest in the latest equipment to ensure both the quality of our products and our ability to meet the rigid schedules of the roofing industry.  2020 alone saw the commissioning of a CNC duplex folder and a CNC slitter incorporating a “coil farm”, all to streamline the production of flashings.

Also launched in 2020 were our new architectural cladding products in Colorbond®, as used extensively on the The Block. With a range of profiles, materials and colours to choose from, Steeline architectural cladding adds an element of style to any structure, from suburban homes to commercial and industrial buildings.

Two brands, common values…

We at CRT Building Products and Steeline Canberra pride ourselves on our attention to detail, customer service and product quality; and with a combined staff of over 75 based right here in Canberra, we have complete control over every step of the process to ensure we can deliver on these values.   Further, with an eye to the future we are always looking to expand and improve our product range and our ability to service new markets and regions beyond the ACT.

Whether you’re a building or roofing professional, an architect or a DIY enthusiast, contact us today or call in to our newly renovated Mitchell showroom to discuss your next new build, renovation or commercial project. 


 OUR values


Our professional team of experienced industry experts, provides exceptional service, whether you are a long time customer, or a first time home renovator. CRT and Steeline Canberra are here to provide you with expert advice and recommendations for first class building and renovation solutions that suit your needs 


At CRT Building Products we pride ourselves on using only the highest quality products from the most reputable suppliers. This ensures we provide you with tried and tested building materials that last. We are always on the lookout for new innovations that can improve the efficiency and dependability of our products.


At CRT Building Products we pride ourselves on being consistent and reliable.  That goes for the service our team provides and our products too. You can depend on us to offer you building solutions and products that last.

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