I have 12 birds in a fully enclosed coop and 14x14 secured run.
Mind you, the flock spends their waking time, and eats, 90% outdoors, in their run.
I feed them fermented feed whenever possible...
I built this mostly for peace of mind, and as a backup.

Three stations, 3" PVC pipes with Y fitting. Concrete 16" paver block for nail and beak maintenance. It is sitting on 2 8" cinder blocks, I use deep litter.

Middle station is for feed. Picture shows the reserve, a 5 gallon reused water bottle with the funnel, a cutoff of another 5 gallon water bottle for extra reserve. It will easily hold 30+ pounds. It probably will last well over 2 months, if used exclusively. This reserve empties straight down into the middle feeder.

Above shows the 3 stations. Far left holds Grit, middle holds Feed, far right holds Crushed Oyster shells. Far left and right are capped. 2 foot pipe probably holds over a years supply of grit and oyster shell.

Another picture of the feed reserve, I'm pretty sure I put close to 40 pounds in there.
The reserve just sits in place, no nails or glue.
Everything can come apart easily if needed.
Mind you, the flock spends their waking time, and eats, 90% outdoors, in their run.
I feed them fermented feed whenever possible...
I built this mostly for peace of mind, and as a backup.
Three stations, 3" PVC pipes with Y fitting. Concrete 16" paver block for nail and beak maintenance. It is sitting on 2 8" cinder blocks, I use deep litter.
Middle station is for feed. Picture shows the reserve, a 5 gallon reused water bottle with the funnel, a cutoff of another 5 gallon water bottle for extra reserve. It will easily hold 30+ pounds. It probably will last well over 2 months, if used exclusively. This reserve empties straight down into the middle feeder.
Above shows the 3 stations. Far left holds Grit, middle holds Feed, far right holds Crushed Oyster shells. Far left and right are capped. 2 foot pipe probably holds over a years supply of grit and oyster shell.
Another picture of the feed reserve, I'm pretty sure I put close to 40 pounds in there.
The reserve just sits in place, no nails or glue.
Everything can come apart easily if needed.