1923 craftsman. Upper portion of the steps has a separation of approximately 1/2 inch. Attached is a link of the photos. The pictures behind the steps (crawlspace) shows the connection between the house and steps. There is approximately a foot of wood which extends from the bottom of the porch to approximately the top of the second step from the top. I was advised to fur out that portion of the top of the stairs (it is the same wood that you see in the crawlspace.) Any other suggestions? Thank you in advance for your help.