Rsj drawings and structural calculations - Architecture job in Hampton, Middlesex

Job description

Hi, we're planning to builld an extension to our house and need to have some drawings and structural calculations done for steel work. An extension will be 7.4m wide and 3m long, so need an advice on steel lenght as well. ( Is it posiible to have a 7.4m beam without support in the middle ?). Ideally we would like to arrange a site visit rather than dealing over the phone and email, so we can discuss all aspects and best possible way of doing this. Advice on fabrication and installation firm would be helpfull too. We're in Fulwell, South West London. Thanks