Not sure they are in stock where you shop but yes, I'm sure you can buy as few as you want are all the store has.
Why are questions like this allowed to hit my inbox? I am not an cement step stone inventory control specialist. Why the puck would I know?
Thank you for your recent inquiry with The Home Depot. This item is currently out of stock. We appreciate your business and look forward to serving you in the future.
They are not sealed but I'm sure it would be better is you did acid wash them and than seal them.
Between 10 to 15 lbs., maybe a little more.
If you completing a straight away you will need 18 using the 18x18.
I didn’t seal mine. I used a mixture of sand and that has held up and them in place. Sealing them would more than likely solidly them more but that’s entirely your decision. I’m currently traveling or I would send you a picture.
Yes, they do get hot in direct sunlight. Burning of feet when walking on them, possibly. I certainly would not walk on them. Out in West Texas when ambient temperatures exceed 110f.
The Home depot in Zachary, La. Most of the Home depots has them. They will be in the garden areas of the store.
At least 300lbs