Besides the seminars we had opportunities to talk with Dave Schmidt, the state vet for Iowa, and Bud Woods, the owner/operator of McMurray Hatchery. Both were down to earth and easy to take to (pick their brains).
Bud talked about and showed photos, on his cell phone, of a new 40' by 200' bantam barn they put up. Oh, would I like one like that! It is 8' high with an 8' aisle down the middle. The coops on either side are 16" deep with various widths from 8' to I think 16'. The floors in the coops are elevated, so the birds stand on 2' by 4' plastic panels with about 50% of the surface open for droppings to drop thru. A "scraper" is under each side to scrape the manure down and out to the end of the barn. The feeders and waterers are automated and there is a small recessed pan type area in each coop, with wood shavings/sawdust, for the birds to bathe in. The metal nest boxes were being customized for this setup, so not yet installed. The eggs should roll out on the aisle side for easy collection. For bio-security reasons we couldn't visit the barn.