Westok CELLBEAM™ is a proprietary product of Westok Limited. Cellular Beam design has been implemented in the RAM Structural System. A Cellular beam is created from a standard I-shape beam by cutting it longitudinally in a semi-circular pattern, separating and offsetting the two halves and welding them back together. The result is a deeper, stiffer beam of the same weight as the original. Also, the resulting cells in the webs permit mechanical ducts, plumbing and electrical lines to pass through the beam rather than beneath the beam. Cellular Beam may be designed as either composite or non-composite beams.