Hello, We are installing Diamond Prelude cabinets as I write. So far, so good. I've seen several reviews about unhappy customers but ours are looking like really good, solid cabinets. We are having an issue with pantry however. It came with no assembly instructions. It is mostly assembled but there is an additional bottom peice that is not attached. It is a box so the pantry sits off the floor, but the box is not the same size as the pantry? Does it go centered under pantry? How should my husband attach?