Milk Crate Chicken Nest Box (Usually Free, will last a life time)
If your looking for a cheap none expensive nesting box, here is an idea for you...My local feed/grocery store was always overwhelmed with milk crates. I had a brain storm, I took a few milk crates, cut one side out and stacked them two high, it worked great. I used duct tape through the handles to keep a heavy hen from tipping them over and used a piece of metal or plastic pipe take (with the holes in them, used to brace water lines to wood floor runners). They were glad to see them gone, I was glad to have them. they work great for anything, tool bins, pvc coupling bins, wire, ect.
Cut a square hole out of one side, fill it with hay, then hens do the rest. They are easy to clean, almost never need replacing. I am using the same ones, I used from 2006. Wood will decay, and metal will ozidize.... Good luck..
Foto please. I can't picture what they are.