This carpet is too light. It sways too easily in the wind. It moves with everything but a light breeze, and that's IN MY GARAGE. When the door to my garage is open, the carpet moves with the wind. My garage is protected and it's not a wind tunnel. I would never use it outside. Even with weights. If it doesn't blow away, the rain will wash it away. Such a light mat, absorbs well. Next time I'll find something heavier and more impressive, albeit more expensive. again.