I inspected a 20 yr old cape style house today. The interior walls had the normal run of the mill cracks, with 1 exception. When you walk in the front door, you are lined up with the rear sliders (about 30 feet away). Both sets of doors had the same horizontal cracks, at the same height, same length, at the exact same location. The home owner has patched up the cracks previously, but they always returned. The door frames appeared to be square with no other defects noticed. The house has always been used as a summer only residence. Winter time turned off heat and winterized plumbing system. The house has no central air. Can these cracks be a result of severe temperature changes? Inspection of the crawl space did not reveal anything of major importance. It is just too weird that these cracks are a perfect mirror of each other. The inspection was a structure only with the home owner wanting a technical answer in regards to the cracks. He may be putting the house up for sale in the near future. I will be using the necessary verbage for liability protection, but I’d like to be able to give a slightly better technical answer. Any suggestions would be helpful.