What are end panels? How do I know what to order?

Insignia vanity cabinets, linen cabinets, and drawer banks are shipped with unfinished sides. Flush-Fit End Panels can be purchased to complete the unfinished sides. However, these are only needed if you will have an exposed side. If your cabinets are going to be installed next to a wall or next to other cabinets, then Flush-Fit End Panels would not be required. These are only required if you have a vanity, drawer bank, or linen cabinets that will have an exposed side. The Base Flush-Fit End Panel model number that can be searched is SCSK21; this panel would be used to finish the side of a drawer bank or vanity cabinet. Linen Flush-Fit End panels are also available and can be searched using model number SCSK18L.

You will need them if one or both ends of the vanity are exposed. They are not pre-cut by the manufacturer. If your vanity fits into a "pocket" you will not need them.