My original wooden nest boxes were salvaged from someone’s disused coop.
I got them for free and replaced the lid with plywood, which I covered with a cutoff piece of marmoleum.
Salvaged Nest Boxes
Milk Crate Nest Boxes
No matter how many nest boxes you’ve got your hens will always want more. They fight over the primo spot, which changes all the time.
I added a bank of nest boxes beside the first ones. There are four plastic milk crates zap strapped together and screwed to the wall. Again, that wasn’t enough so I added a couple of low, open plastic trays on top.
I put a strip of wood along the fronts to keep the eggs from being knocked out. They are super easy to hose out, which I do a few times a year.