How to approach a wood rotted sub floor and frame under a sliding glass door
Originally Posted by chrisBC
taking a look at that pic, looks like the bottom plate under the door is toast, and i'd bet that the subfloor underneath the plate is gone as well. I'd take some pokes at it with a nail bar to see how soft it is.
There should not be a bottom plate under the door.If there was the door would sit 1-1/2" off the floor.