The international building trade fair, Construmat, will be open for business in Barcelona between 11 and 16 April. The overall exhibition space of 145 000 m² exceeds the size of all the previous events of this kind. The fair will be staged on two different locations: at the Gran Vía exhibition centre (61 000 m²) and at the Montjuic exhibition site (84 000 m²). The expectation is for 2 350 direct exhibitors coming from 50 countries to participate at the event.