Can this product be used outdoors on top of grass? I am searching for a reusable dance floor for outdoor events.

Our Wood Dance Rolls can be installed outdoors, but we wouldn't recommend them as a temporary dance floor over grass. We would recommend using our 3' x 3' Practice Dance Floor or our Practice Dance Tiles for that type of use. These will provide a solid surface that will make dancing possible. Our Wood Dance Rolls would be great over any hard flat surface, like concrete or compacted gravel.