Please purchase one add-on for each SET (vertical sections) of bookshelves you have. So if you have 4 built-in sets, you will need to purchase 4 of these add-ons. The listing photo depicts two sets of shelves for reference.
We will need the height, width and depth of each shelf. We cannot work in existing items into the shelf styling and will recommend new items for all shelves.
*This package can only be purchased in ADDITION to another design package**