unstable floors

i have picked up the planters on the floors so i could do other things but i can not place anything on the floors other than planter it says it is not stable enough

The room where the planters are located is designed only for the planters, there is no need to remove them.

i have been on other servers were that put other thing there how would i change that

If you want players to be able to place foundations where planters used to be, you will most likely have to increase the distance between the ceiling and the floor.

i dont want to place foundations ju want to be able to place objects like workbeanch

Unfortunately, not all objects can be placed on a surface that is not a foundation. But you can place them using RustEdit