Hello, the borders cannot be stacked, although, you can use the Roman Stone foundation to raise the height of the borders.
Hello, the item is also available in Grey. Thank you.
Hello, this particular item is currently available. Please reach out to your local Home Depot retailer for further assistance on availability.
Hello, the rubber smell will not be to intense. If so, we recommend leaving the borders outdoors for a couple of days and the smell will go away substantially. Once you install the border, the smell will be negligible.
Yes. It is made of rubber so you can install it pretty much anywhere.
Hello, this item is available both online and in store. Please reach out to your local Home Depot for further assistance on availability.
Not sure how well paint would would adhere. Suggest you ask the manufacturer.
Use a drill. Put a piece of wood under the rubber so you don't dull the drill if you hit concrete or something hard.
Yes: They are made of rubber, so are somewhat indestructible. Think about what your TIRES go through.