That's what I use under the GH benches for taros and such overwinter. I just use wood shims to keep them off the floor.
![Smiling Smiling](/i/s/smily.gif)
I do have one that got a hole and I will need to replace next year. I have 2 more that I used under the hens roost to collect droppings to mix in the compost. Is there any question why I have such great compost?