I suggest making the coop a little bigger. Remember, chickens are literally the most addictave creatures EVER! LOL! I made the mistake of making my first coop smaller, so I'm going all out a redoing a shed. Since you have so many predators, here's my suggestion:
- Make sure the coop floor is against the ground.It'll be perfect for you walk-in idea!
- Use wood on the floor and cover it with straw or pine shavings. Rats cant' get through the wood. It could be pallets stacked next to each other or wood boards. Straw and pine shavings make better bedding for the bottom of your coop, and if you have a run, they'll still get a bunch of dirt, especially if they free range. Straw makes a great bedding use for the Deep Litter Method and you can compost it. It also traps in heat easier.
- Make sure you have the latches out of reach of predators and use predator proof latches, especially if you have raccoons!
- Dirt will be harder to clean if it is a bedding
I hope my advice helps! This is what I've learned over past chicken coops.
