Convertible Crib Question

Christina, is there holes in the side rails to attach a middle rail? Have you checked the mfg website to see what they recommend? It is possible that you were suppose to get a middle rail or that they have since updated the rails and would have a fix for it. I know with our last full size bed there wasn't a middle support but when we got the new mattress dh put wood boards across to added support and stability. Our rails had holes at various points down the sides so he bolted the boards in at those spots.