Cinder Block Wood Rack. To build the cinder block firewood rack you'll need the following supplies: The materials will cost around $25 total, making this one of the cheapest and easiest firewood racks you can build.

The materials will cost around $25 total, making this one of the cheapest and easiest firewood racks you can build. Building a cinder block firewood rack. Two 8' long treated landscape timbers;