Cut back baseboard without removing?
All of the passageways except for one are trimmed out with rosettes and plinth blocks. We'd like to trim the remaining opening which is currently drywall and baseboard. I am trying to figure out a way to cut back the baseboard on either side to make room for the plinth blocks. I know I could remove the baseboard but on two sides the run of baseboard long (12 and 14 feet) and I really hesitate to remove that and re-install it. Any ideas how I can cut back the baseboard without destroying the wall or floor? There is also a shoe molding but I am less concerned with that.