Expand the possibilities of your building with DonoBeam.

DonoBeam is a tapered box beam manufactured by welding two folded halves of steel plate together to form a box. It’s specifically tapered to reduce the amount of steel needed for any given design, without reducing structural integrity.

Codeveloped in 2015 with BlueScope Steel, DonoBeam has been designed to withstand harsh New Zealand environmental conditions to ensure your new building is protected for years to come. The steel-saving design offers a more robust design solution (compared to cold-formed sections) for medium to large spanning buildings, and a solution that is lighter than hot-rolled sections. The result is a trusted product that is rapidly becoming the most efficient structural solution in the New Zealand market.

steel building with blue sky background

Alongside the significant cost-savings in steel, DonoBeam delivers high spans and greater design flexibility. We understand the value in unobstructed internal space, and DonoBeam structural steel beams can deliver this economically, with impressive clear spans to suit your business needs. This versatile system can also incorporate a range of architectural or practical elements that your business needs – all with a unique and distinct architectural aesthetic to make your project stand out from the competition.

As the structure is prefabricated, the entire frame can be assembled safely and quickly on the ground without the need for welding on site. This equates to less risk and time spent on-site, resulting in significant labour cost savings for you and your business.

donobeam steel structure

Structural Points of Difference

Cross section diagram of a building built using DonoBeam
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