1. Measure the inside of your tray, mine was about 510mm by 320mm. If you’re very particular, make sure you get the decimal points right.
2.Mark out the measurements on the back of the door mat and cut.
3.Place cut piece in tray.
4.Put surface protectors on.
The door mat already has a non-slip bottom so I did not bother gluing it on.
I used the small rubbery surface protector so the tray doesn’t move much on the floor.
Mine fits about 3 pairs of shoes/boots.
When mat is sandy and muddy, you can just shake/wash it off.