I've read and searched extensively but haven't found a thread to address a concern I have.
I'm back to considering using either RaceDeck Free Flow or SwissTrax RibTrax
on a 24'x20' area that only goes to walls on the sides. It also has a 1.5" step-up from the outside apron to the garage floor slab. Since I always back the vehicles parked there in, I'm afraid with the step-up and the driven wheels hitting first that the whole tile slab may move. I was thinking about possibly trying to permanently attach an edge transition piece to the floor slab at the doors to prevent this. Or will it actually not be an issue?
I'm back to considering using either RaceDeck Free Flow or SwissTrax RibTrax
on a 24'x20' area that only goes to walls on the sides. It also has a 1.5" step-up from the outside apron to the garage floor slab. Since I always back the vehicles parked there in, I'm afraid with the step-up and the driven wheels hitting first that the whole tile slab may move. I was thinking about possibly trying to permanently attach an edge transition piece to the floor slab at the doors to prevent this. Or will it actually not be an issue?

Fair enough. It is going to vary based on the situation. If you can give me a call I would love to go over details with you