Except for weight and the fact I've never seen one that size, Link mats work well.
I have a fake-grass mat but it fills up with sand, it is waterproof and I have washed it... ONCE. Did not get all the sand out
I also have a small wodden "path" not much bigger than a welcome mat, this is slats of wood with spacers, rolls up nice, I use it steping off the steps often as not.