Can I attach a top plate to the central beam of the house?
I have a 5.5 x 7.5 beam that runs the length of the house in the basement. I was wondering if I could use the beam to frame a wall from underneath it? I was originally going to frame the wall using the joists that run perpendicular to the beam directly in front of it. I then realized that I would get a few extra inches of space if I started under the beam.
Being that I am using 2x4's I would have to create a sofit like effect with the sheetrock on the other side of the wall.
I see no reason not to attach the top plate of your new wall to the bottom of the beam. The only thing I would watch would be cutting your studs to the exact right length or a hair shorter. If you try to pound studs in that are a hair too long, it will transfer load off the beam to your new wall.
Some advice you receive on the internet can be worth exactly what you paid for it - be careful.