What type of brick and how many for 3 rows ?

Dear customer,here is Ada， thank you for your inquiry，Sorry, we don't understand what you mean. This is a barbecue fire pit. Do you want to ask if it can be installed on bricks? Please describe your question in detail via email.The product has a one-year warranty period. If you have any questions, please feel free to contact us at any time; Email: Lowescommunicate@vevor.com