Are you sure that the 2.5” thick tile is only certified for 4 foot fall? I was looking at rubbermulch and their 2” tile they say is ferried for 5 feet fall. Please clarify
These are certified for a 4 foot fall when installed using quadbloks over concrete or asphalt. They are indeed certified for a 5-6 foot fall when installed over a compacted aggregate base, or when installed fully adhered (glued down).