Above Edge 18-Pack Foam Interlocking Faux Linen Tiles

I’m thinking of using these in a small motorhome but am concerned about the thickness (only 1/4 inch, most foam tiles are at least twice that) and having the interlocking keys popping up. (Is there any way to lightly glue the tiles together?)

The linen finish looks good though!

I loved these tiles. Wish I could get more. They look great in playroom