After living in my new house for about a year the creaky floors boards have really started to annoy me. The house was built in 1988 and is a private estate so all the houses are the same. We do not have regular floor boards they are large sheets of wood, I am not sure what type though. The walls to the house have been built over the top of the sheets so when walking in the bathroom the floor also creaks in one of the bedrooms. Can anyone suggest a way to prevent all this creaking? Any help would be much appreciated.