In our conversions for face cords, we use an 8 ft length x 4 ft height and a width of 16 inches for the stack of wood.

A regular cord equals 8 ft long x 4 ft height x 4 ft width; 8 * 4 * 4 = 128. A volume of 128 cubic feet and makes our conversions a third of a regular cord - a stack of wood with a volume of 42.6 cubic feet. However, in a face cord, the width or depth of the stack can be any length.