I am looking for an insured contractor that can close in a small sitting area I have in my room. The opening is roughly 85" wide and 96" tall at it's highest point. I already have a prehung door/frame to install. The opening is not perfectly square. I'm attaching a photo. If someone could give me a rough estimate and timeline from the picture, I would appreciate it. I will have you out for a more precise quote when we are ready to do the work, probably in two to three weeks.