Ikea Kitchen counter sidewall shelf (20 Alvina Ave, San Rafael)

1 of Foerbaettra
https://www.ikea.com/us/en/p/foerbaettra-cover-panel-high-gloss-white-20568...
2 sets of Utrusta
https://www.ikea.com/us/en/p/utrusta-shelf-white-10265523/

These are leftovers of my neighbor's kitchen renovation.
Unused them and they are in the original package. We thought of repurpose them for the basement countertop/work desk, but didn't use them.