Aisha is planning on building a 23-foot long by 14-foot wide rectangular, closed pen for her prized hens. She will place a total of 16 wooden posts measuring 6 inches by 6 inches in each of the four corners and evenly spaced along each side of the pen. Aisha needs to purchase fencing panels of equal size to place in between each post to complete her pen. How many linear feet will each fence panel be?