There was an issue with a waste pipe going to the upper floor that had to be dealt with. We didn't realize until the wall was down that the pipe also extended in the front of the cabinets. To hide the upper pipe, we created the long cabinet on the right. There is a box that fit over the pipe built into the cabinet running from top to bottom. The drawers on the bottom are actually shelves with the same box. They are made to look like drawers to break up the length. To cover the bottom of the pipe running towards the center of the sink area, we used a 36 lazy Suzan box with a 33 Suzan insert to make up the space. I love the results.