I find it very inspiring that you are really thinking all this through BEFORE the purchase. Bigger is better in coop size. Chicken math does not discriminate, and I'm sure you will come down with the chicken bug as well. Remember that though most sites recommend 4 square feet per chicken, more is better. Especially if you live in a cold climate and the birds will spend time indoors in the winter. At least 10 square feet per chicken in the run. How big is your coop again so far?
I like the subdivider idea. If you ever have a hen who wants to be mama, you can expand her space to 2 nesting boxes, though even better would be a separate broody area. Some people build this up high and hang feeders and waterers under that. I'm not sure what you are planning to do with your birds, or even if you will want to brood chicks, but it's also a great thing to have if you want to have chicks again another year, or have an injured bird that needs isolation.
I live in Austin, TX. Cold is rarely the problem. Rather, I am being careful in the placement, construction materials, and venting to ensure that I do not cook my chickens
.
In answer to the question on coop size, my tentative plan is a:
- 6' square henhouse with two external 3'w x 3'h x 18" nesting areas with modular dividers forming as many as eight nesting boxes
- 6' x 12' fully-roofed run with another 6' running beneath the henhouse.
That gives me 36sft of interior space(excluding nest boxes) and 108 sqft of run. My math indicates that the henhouse is sufficient for nine standard chickens and as many as eighteen bantams (while I am only planning on 7-9). The run should be adequate for ten of either. Although...I keep expanding the plan.
Based on research and suggestions in my "Indispensable Features" thread, I am trying to incorporate:
- Complete exterior access to everything
- Exterior nesting boxes with modular subdividers
- Raised hen house with mesh floor to allow for deep litter
- Removable hen house floor for thorough cleaning
- Removable bins in nest boxes for cleaning
- Interior doors on nest boxes to prevent entry when warranted
- Coop door wide enough to accommodate a wheelbarrow.
- Automatic door on hen house triggered by light exposure (if the cost-benefit analysis can sway me to drop $200 on one)
- Hanging feed and water
- Staggered height roosts (for a safe ladder to the highest roost)
- Windows on the henhouse to easily view chickens, food, and water
- Dutch doors
- Gutters
- Rainwater collection barrel
(This is why the significant other hates for me to design things. He could happily build a shanty out of discarded shipping crates before I am done drafting detailed blueprints
.)
My understanding is that bantams need just as much outdoor space as standards because they are typically more active. I also plan to have a 3'w x 2'h tunnel that runs along my fence on the opposite side of the henhouse from the run. I can simply add to the length as time permits until they have a track down the length of the yard, providing another 3 sqft per linear foot of "tunnel". The tunnel would not be predator-proof, but would only be for daytime excursions. I would love to free-range them, but read that bantams are still relatively flight-capable; my fence is only 6' near the house and 4' at the rear property line. I am concerned that the best outcome I could hope for to an unimpeded walkabout... would be bare-assed chickens and feather-bearded neighbor dogs.
As to what I am doing with my birds...
Primarily, they would be pets. Their only job would be to rid the vegetable garden of bugs when I can turn them loose without fear for fruits and shoots. The vegetable garden is currently 11'w x 28'l x 10'h, and fully enclosed with 3/4" hardware cloth. I intend to eat the eggs, but never chickens that I have cosseted and named
. I am allowing for the possibility of having chicks, but usually do not like to reproduce anything that I am not keeping. It is going to be hard enough to find homes for any excess roos from my initial chicks. I may caponize them to facilitate re-homing...or to keep them.
The brooder area would be easy enough and I love the idea for an isolation chamber option. If I built a temporary fence separating the 36 sqft of run beneath the henhouse and included a trapdoor/ladder from the double-box...I could have a coop-within-a-coop at will! You've got me spinning off on another tangent!
Thanks for the props on what most people consider to be WAY over-thinking. The boyfriend tries not to roll his eyes when he asks me what an shape on the sketch is, only to hear a non-funtional item like "lantern", "planter", "chandelier", etc as a response
.