Hi all. I'm after some advice please. A family member is planning on widening an existing opening between his lounge and dining room. At the moment it's about 1.8 metres wide (double door width) but he wants to remove the load bearing wall and go right back to the outside wall on the one side. The clear opening will be around 3 metres. He's had some advice and was told that he can set the RSJ onto the internal cavity wall (thermal block) using some engineering brick under the beam to add some load bearing. I'm no expert but I thought this might not be right. The RSJ will then support 10 first floor joists and the bedrooms above (no solid walls just stud above). I thought you need a minimum of 150mm bearings for the steel and I do believe the thermals will be 100mm wide. I was guessing he would be better off cutting the existing single block load bearing wall back and keep six inches to bear the steel. The other side of the beam will sit on a decent amount of the existing solid block wall so that's ok. Any advice from you pro's is greatly appreciated.