If you’re looking to build a large commercial or industrial building, the Tapered Box Beam offers a high-quality, cost-effective option using the latest industry technology.

The Tapered Box Beam is manufactured by folding two halves of steel plate and welding them together to form a box. It is tapered through its length, utilising only the amount of steel required for a given design. The amount of steel needed in the structure is reduced and subsequently the cost, all without affecting structural integrity.

As the Tapered Box Beam is a sealed hollow section it’s also bird-resistant, providing no surface for birds to roost when purlins are embedded. The product is a joint development project between Donovan Group and New Zealand Steel.

The Tapered Box Beam has also been independently checked and verified by HERA (Heavy Engineering Research Association).  HERA is recognised in both New Zealand and abroad as a leading authority in the design of steel structures.

Visit our brochures page to download the Tapered Box Beam booklet.