Guy just re-did all the windows in this old house and now he has a sign in his yard that all the windows sitting there are free. Nice large windows. I'd say they start at three foot wide by two foot tall and get bigger. Just north of the cemetery in Belton MO. I didn't get close enough to see what shape they are in and there's about fifteen still left when I drove by today. Just thought I'd share for anyone wanting to start a new coop or re-design one they already have.