Thanks to Opa-wan Chickenobi [Sam] I will build a 2 unit roll-out nest box for my coop [see my BYC Page]. I used my original nest box to house a "window" fan [completed that project today. I plan to construct a step-down nest box to get the 20" height that the plans call for, although the height can be adjusted. Special thanks to Sam for taking the time to speak with me this morning. He is a font of information and quite willing to share and very easy to talk to. You are the MAN!
Jim
Jim