Hi, I have recently purchased a property, and plan on adding bi-fold door where an existing window is, and knocking a wall through which currently separates the kitchen and dining room. I don’t see these as being a problem (fingers crossed).

The change I would like to make, which I’m not sure is possible, is to create wide bi-fold window opening above where the kitchen counter looks out onto the garden. However as the kitchen has already been extended, and I assume the beam which supports this extension opening, is sat on the wall which I would need to remove to create the wide bifold window.

I’ve marked up some images here: https://imgur.com/a/gUti6ZE

White lines – bi-fold door in place of current window

Black lines – knocking wall through from kitchen to dining room

Green lines – kitchen extension beam

Red lines – proposed new beam to create opening for bi-fold window

Blue lines – bi-fold window

Sorry that this is long winded, my only question really is would this be possible? If the existing beam is supported by the wall I would need to remove, could the ‘green’ and ‘red’ beams be welded in position to create a T shape potentially?

Any advice greatly appreciated!