I got tired of constantly having to adjust the height of the heat lamp to maintain the proper temperature. Buy a commercial brooder was way out of my budget so I built one based on a 30"x30" tray from a rabbit hutch. That cost me $17. Everything else was either scrape from jobs or items I already had.
Front showing pullout droppings tray
Side showing Feedbox door
Back with thermometer
Top view
Heat source with wafer thermostat
Removeable center partion and feed box
Center partition removed
Orange cups are connected to water bottle and fill when bird peck yellow valve
Spangled Hamburg bantam occuping cool side.
Hopefully these pictures might help someone else build a brooder.

Front showing pullout droppings tray

Side showing Feedbox door

Back with thermometer

Top view

Heat source with wafer thermostat

Removeable center partion and feed box

Center partition removed
Orange cups are connected to water bottle and fill when bird peck yellow valve

Spangled Hamburg bantam occuping cool side.
Hopefully these pictures might help someone else build a brooder.