
Wall cabinets or ‘uppers’ hang on the wall. Well DUH! you say, that’s so obvious! So let’s start there. I once took a job hanging some ‘bookshelves’ in a lawyers’ home office. These shelves were 4’ wide and 8’ tall and had 1/8” backs. They were big enough to hold far more books than they could support…and I got laid off for saying so but I didn’t want to defend a lawsuit.