Are Upstairs Walls Load Bearing. It is impossible to tell just by examining the outside of the wall and extensive tests need to. Knocking down a wall is a great way to create an open floor plan, or simply make a room larger.
They will run (almost always, modern loadbearing timber walls loadbearing timber internal walls shall be designed to support.
2) if the wall is load bearing, how would i temporarily support the joist above (to install a longer spanned *update 8/7/18 i ended up knocking this wall out with no issues. I have recently spoke to it is a load bearing wall if hes put an rsj in.it will be holding up the floor that supports the upstairs wall.this work should most definetly have gone. No professional determined it was a load bearing wall. They will determine the load of the floor or ceiling above the wall and calculate how to remove the wall safely.