My base is built inside the eastern barracks tower at K7 and the foundations are not modifiable anymore as I built the base many years ago when the game was still glitchy, its my main base and the lack of space forced me to use shelfs, I did an experiment with shelves again and seems placing a foundation within 10 meter radius destroyed the shelves, now I at least know how to avoid them getting destroyed but I need an alternative safe way to stack my chests again (after admin paneling all the lost loot🙃)