Hey this may seem like a funny question but i'm just getting back into doing some floor plan drawings and I can't for the life of me remember what the actual width of interior and exterior walls are in the drawings. Any help would be really appreciated. Thanks so much!

If you are talking generally, as in, what is the width of a typical exterior or interior wall, it really depends on what sort of building it is (residential, commercial), what the wall is used for (partition, plumbing wall, support wall), and what the wall is constructed of (steel/wood stud, concrete, concrete block).  There are many variables so there is no typical or simple answer.