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Metsec makes light work of long trusses

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Lightweight steel trusses spanning 35m have been erected for a new manufacturing plant in Norfolk. Metsec supplied 33 of the trusses to the project which is expected to be completed in May.

Spaced at 6m centres, the pitched trusses are 1100mm deep at the ends rising to 3000mm at the ridge. Each one was supplied to site in three sections for bolting together. Once complete the new facility will provide client Milbank Floors with 7140m² of new manufacturing space.

Bolted on top of the lattice trusses are 4.5km of 172mm deep Metsec galvanised steel zed purlins to support the roof covering.

Metsec trusses were specified for the project because of their long span capability and their light weight, with each one weighing approximately 2200kg. “The profile of the cold rolled sections used for the chords ensures that they can be designed 100 per cent effective, they are also rolled from a high grade steel providing excellent strength to weight ratios and this allows the sections to be lighter,” said Sales Director of Metsec’s Lattice Beams division Darren Bird.

The trusses were designed and detailed in-house by Metsec’s team of engineers using the company’s LatticeSPEC software and were supplied in three phases to suit the clients erection sequence.

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