Don't let this story of night time chicken predation happen to you. Use an automatic chicken door.
What is the purpose of the sealing washer when using the Add A Motor D20 for an automatic chicken coop door? Includes a picture.
During phase two of the automatic chicken door conversion, the door cover and rails that were built in phase one are retrofitted into the coop.
Retrofit an existing chicken coop with an automatic door using the AddAMotor D20 chicken coop door opener with step by step instructions. Phase 1