Posi-Joisted floor contains metal webbed timber joists in a floor, it was developed by MiTek [information here] and is an efficient system as all the pipes and wires can run through the truss so there is no need to drill any hole on the timber joist. This system is often used in domestic floors and has good market share in the UK. To prepare for the coming change in Eurocode 5, Wen-Shao works with MiTek to investigate the floor vibration of Posi-Joist floor. We have built a full scale timber floor with dimension 4.8×4.8 metres and investigate the dynamic performance of these floors with various factors. More information will be posted in later days, alternatively if you are interested in the results please do get in touch.