How To Tell If A Wall Is Load Bearing. These walls play a key role in supporting and reinforcing the buildings structure. In addition all walls that stand on the foundation are load-bearing walls.
If you are correct and there is a wall directly above and then yes it may be load bearing. However if the noise is muffled or dull it might be a load-bearing wall. If the wall is perpendicular its most likely load-bearing.
1 Check the foundation.
If the wall is perpendicular its most likely load-bearing. If the noise you hear sounds hollow chances are likely that you have yourself a regular wall. However weird this may seem you should knock lightly on the surface of the wall. I wouldnt worry about it with regards to a house purchase.