Cellular Beams are fabricated under license to Westok UK. Grayson Engineering has formed a subsidiary company, Cellbeam NZ Ltd, for the promotion and the fabrication of Cellular Beams in New Zealand.
A Cellular Beam is the modern version of the traditional 'Castellated Beam' and consists of a UB or UC member that is cut using patented 'Ribbon Cut' technology, and then re-welded to form a new beam 40 to 60% deeper.
Typically Cellular Beams are up to 2.5 times stronger than the parent section, and therefore can provide huge benefits where long column free spans are required. Also, the open cells allow for services to be run through the beams rather than underneath, thus reducing the floor heights on multi-storey buildings.