Removing baseboards, chair rails, or window or door casing requires little more than a hammer and pry bar
Removing interior wood trim — baseboard, chair rail, window and door casing — requires little more than a hammer and pry bar. But to avoid ripping out large sections of drywall facing along with the trim, use a sharp utility knife to score the seam between the molding and the wall. Apply just enough pressure to cut through the dried paint and into the paper face of the drywall. Now when you pry off the trim, it will come away cleanly.