Top trims and moldings
The top deck itself can have eased edges or an upper or lower or both round over edge. Below the top deck there is commonly a molding or combination of detail to fit the desired style.
These top trim details will add to the nominal case width so be sure to factor that into the available wall space. Our largest (widest) trims like the "fancy" or the "large mission" will add about 5" to the basic case width. Mediums trims might add 2-3 inches to the case size, while a minimalist top decks without moldings will usually add 1.5-2" to the case size for a nice overhang.