Hi KJ, prices of items are subject to many factors including a national average set by our corporate office along with collaboration from our manufacturers and vendors, where the merchandise is being sold, the type of materials and labor used to create the product, and other various, related aspects of online merchandising. We appreciate your business and look forward to serving you in the future. Thank you for shopping Home Depot.
The SplitRock products and kits do not require a footer. It is recommended to remove the top 2-3 inches of organic material and install 2-3" of compacted base material. This will provide a suitable base while allowing the product to be leveled during installation.