Fitting RSJ into inside of house

[jackpot]

We have an extension to the rear of the house and are looking at opening up the kitchen to the extended dining room for a more open plan look.
A stud wall separating the kitchen and utility will need to come down and also what was once the outside external wall which no separates kitchen/utility to dining room. I'm assuming this is load bearing so an RSJ will need to go in. How much of a problem would this be needing to be fitted internally. We have 2 sets of French doors for access.

Also would this have any interference with the room above. It's our bedroom and plan on refurbing that first but if any access to floor boards needed etc I will sort the kitchen out first..

Also what would be the process in doing this. Would a builder arrange structural engineer and building control or would an engineer be needed before I call in the builder. Thanks for any advice?

 

[Newboy]

Start with a SE to do the load calcs and the steel specifications.

Find a builder once you have the specifications so that they know what they are quoting for. Good local builder will know how do deal with building control - although it's ultimately it's your responsibility to ensure that building control are notified and the job is signed off.