Can these tiles lay right over grassy areas? The area is pretty level, but do the tiles push into the ground to create a level surface? Also is there a rubber backing to the tile? Thank you.

Helios Deck Tiles can be laid over grass, but these tiles may not stay interlocked since they won't have a solid, firm base. We'd recommend installing the tiles over a level and solid subfloor surface. They come with a plastic backing.