The cost of Walden shelves will, in most cases, depend on the type of materials from which your shelves are made, any special alterations to them, and more importantly, the number of shelves that you need in the house. These are things that you can discuss with your contractor before they come over to assist you with the installation. Discussing these terms prior to the installation is a good idea because you have a clear indication of what needs to be done and how so that you can plan effectively alongside your budget.