Coop Design in Phoenix AZ- Design Feedback

[CapnFailBoat]

In the process of designing a coop/run for 6 hens for an urban backyard in Phoenix Arizona.
I want to go a bit bigger than necessary for hen comfort as well as the option for potentially expanding the flock.

Was planning on going DIY or semi DIY with a prefab run and DIY coop attached.

My initial idea is below, a roughly 5'x5' coop with deep litter in mind and protruding nesting boxes.
Attached to the side would be the run.
The coop section would have ventilation in mind since it semi regularly reaches 105F-110F here in the summers with a few days hitting 120F. (Lows in the 90s)

I had also considered a more open air design though. Like this one from easycoops.com
It feels like it would be easier to build and cheaper on materials going the open air route but I had concerns about keeping the hens warm on the week or so a year that it actually does get down to almost freezing temps in the morning hours.

 

[DobieLover]

Go as open air as you can. You can always install tarps to cover open areas to block wind during cold spells. Chickens can handle the cold an awful lot easier than they can handle the heat. You need to keep them as cool as possible in your climate.
Your run is going to be small for the number of chickens you have so, especially if you want to expand some day, you might want to consider doubling or tripling the size of that run.
Place the entire setup in as deep shade as you can manage.

 

[aart]

Your run is going to be small for the number of chickens you have

So is the coop.

 

[CapnFailBoat]

So is the coop.

I was working off of 4 sqr ft on the high end per bird for coop space.

What should I be aiming for with 6 full sized hens?

 

[CapnFailBoat]

After hearing all that, this about the maximum space i can give them that's still somewhat shaded.

Seems like any hopes of expanding the flock will have to wait until more of the yard gets shade.

Browsed some of the posted Coop designs here and saw a few I liked but i kept coming back to that easycoop design.

~72 Sqr ft of coop
~120 Sqr ft of run

Thinking of a modified version of this for the coop space.

 

[rosemarythyme]

Space on the first design is probably fine for 6 but certainly better in the second, especially if you're hoping for expansion of the flock at some point.

For your climate I like the openness of the coop that you seem to like the look of, but really no need for so many boxes, save yourself the extra effort and ditch one bank of nests (you can still build it in that style if you like the look, just save on the materials by not putting the nests in - the space could be used for feeders, a brooder, broody breaker, etc.)

The roosts are in the back, not the side, as far as I can see with that design.

You never get cold enough for cold to be an issue, so yes heat is going to be your major concern.

 

[CapnFailBoat]

Did not consider the shift in sun for the summer, the area i thought would have some shade is looking like it will probably be nearly full exposure by May.
(Thank you shademap.app)

So now I'm looking at another corner of the yard sandwiched between the deck and East alley wall.

Hoping the alley wall will give some shade from the morning sun while the deck area gives some shade in the evening, or at the very least an anchor point for some shade cloth.

 

[CapnFailBoat]

Oof, after a weekend of being sick i'm back on the coop project.

After actually starting lay things out on the ground and seeing it i got to wondering if there would be any problem with keeping the coop side of things open faced to the run.

I'd still have 3 of the 3 sides walled up from ~2ft from ground and up with hardware cloth covering that 2ft, but the 4th side would be completely open to the rest of the space.

 

[rosemarythyme]

i got to wondering if there would be any problem with keeping the coop side of things open faced to the run.

I'd still have 3 of the 3 sides walled up from ~2ft from ground and up with hardware cloth covering that 2ft, but the 4th side would be completely open to the rest of the space.

As long as run is predator proof enough to your satisfaction, that's fine.