Tiered Seating

We are looking into hiring some additional bleacher seating for a sports hall event on the 9th June. The area we are looking to position the seating would be 15-16m wide and 15m deep and we would like to be able to maximise this space by seating as many people as possible, either by using benched or chaired tired seating. Our sports hall can only be accessed by regular sized double fire doors and the flooring is sprung so we would need to know the weight of the seating if possible. Please let me know if you are able to provide seating to match our specifics. Many thanks http://www.tieredseatinghire.com/