Great improvement to my small 5x11 covered deck. The backing is a rubbery plastic, it raises the wood off the deck "floor". The tiles were easy to trim using a tin snip on the plastic part, and a jig saw on the wood part. After seeing what a week's worth of rain did to the tiles, I oiled the tiles, using lemon furnitiure polish, on the next clear day.Hindsight- should set out all the tiles first, to make sure the connection pattern is easy. One-person job.
I bought these two summers ago. They looked lovely and went together easily. The wood has held up great, but the plastic that connects the tiles together is falling apart and crumbling into little bits. I used the tiles to hold an outdoor dog bed off the concrete for better drainage--they worked well while they lasted but it's not even like they've had any heavy foot traffic. So overall I wouldn't recommend them unless you're okay with replacing them on a regular basis.