How Much Space Your 10 Chickens Actually Need
A hen house for 10 chickens needs to be at least 40 square feet of interior floor space — that is 4 square feet per bird, the minimum standard to prevent overcrowding, disease, and stress. If you plan to keep the birds inside during bad weather for days at a time, aim for 60 square feet instead. The house itself can be 8 feet by 5 feet, 10 feet by 4 feet, or any footprint that reaches that total.
Do not confuse the hen house with the run. The hen house is where they roost at night and lay eggs. The run is the outdoor pen where they scratch and forage during the day. Both matter, but they are separate structures. Your 10 chickens also need a run of at least 100 square feet (10 square feet per bird), though more is better if you want them to spend less time in the house during the day.
Height matters less than floor space, but aim for at least 6 feet at the peak so you can walk inside to collect eggs and clean. A lower house is harder to work in and traps heat in summer.
Key Takeaways
- A hen house for 10 chickens needs a minimum of 40 square feet of floor space, with 60 square feet recommended if birds will spend extended time indoors.
- You will need one nesting box for every three birds (so four boxes for 10 chickens) and one roost pole for every two birds, spaced 12 inches apart.
- Plywood, 2-by-4 lumber, and hardware cloth are the standard materials; avoid chicken wire because predators can tear through it.
- Ventilation at the top of the walls and a sloped roof for water runoff are the two features that prevent disease and rot.
- A basic 8-by-5-foot house takes one to two weekends to build if you have basic carpentry tools and can cut straight lines.
Materials You Will Need for an 8-by-5-Foot House
For a straightforward, sturdy hen house, gather pressure-treated 2-by-4 lumber for the frame (you will need roughly 16 pieces at 8 feet long and 12 pieces at 5 feet long, depending on your design), half-inch exterior plywood for the walls and roof, and hardware cloth (not chicken wire) for any ventilation openings. Hardware cloth is a wire mesh with small holes that predators cannot tear; chicken wire is too flimsy and will not stop raccoons or foxes.
You will also need roofing material — asphalt shingles are standard and last 15 to 20 years, or use corrugated plastic panels if you want light inside. Add a box of 2.5-inch exterior screws, a tube of exterior caulk, and hinges and a latch for the access door. For the interior, you need four nesting boxes (wooden crates work, or build them from scrap plywood), roost poles (2-by-2 lumber or branches 1.5 inches in diameter), and bedding material like pine shavings or straw.
A basic materials list for an 8-by-5-foot house with a peaked roof runs between $400 and $700 depending on local lumber prices and whether you use new or reclaimed wood. Buying a prefabricated coop of the same size costs $800 to $1,500.
The Basic Frame and Wall Layout
Start by building a rectangular base frame from 2-by-4s that measures 8 feet by 5 feet. Screw the corners together so the frame is square — measure diagonally from corner to corner; both measurements should be equal. Attach vertical 2-by-4 posts at each corner and at the midpoint of each long side, running from the base frame up to your desired wall height (4 feet is standard). These posts hold the roof.
Once the frame is standing, sheath the walls with half-inch exterior plywood, leaving one wall or section as a door frame. The door should be at least 2 feet wide and 3 feet tall so you can reach in to collect eggs and clean. Hinge the door on one side and add a straightforward barrel bolt or hook-and-eye latch on the other.
For ventilation, cut two rectangular openings near the top of opposite walls (each about 12 inches by 18 inches) and cover them with hardware cloth. These openings let warm, humid air escape in summer and reduce ammonia buildup from droppings. In winter, you can partially cover them with a hinged board to reduce drafts, but do not seal them completely — poor ventilation kills more chickens than cold does.
Roofing and Water Runoff
Build a peaked roof by running two 2-by-4 rafters from the top of the front wall to the top of the back wall, meeting at a ridge board in the middle. The peak should be 2 to 3 feet higher than the walls so water runs off quickly and snow does not pile up. Sheath the rafters with plywood, then cover with asphalt shingles or corrugated panels.
Slope the roof so water runs away from the door and toward the back or sides. A 4-inch rise over 8 feet of run (a 6-degree angle) is enough to shed water. Make sure the roof overhangs the walls by at least 12 inches on all sides so rain does not run down and rot the plywood base.
If your coop sits on bare ground, water will pool underneath and create mud and disease. Either build the house on a concrete pad, set it on concrete blocks at each corner, or lay landscape fabric under it and grade the ground so water slopes away.
Interior: Nesting Boxes and Roost Poles
Install four nesting boxes along one interior wall, about 12 inches off the floor. Each box should be roughly 12 inches wide, 12 inches deep, and 12 inches tall — a standard milk crate works perfectly. Line each box with 3 to 4 inches of bedding (pine shavings, straw, or wood chips). Hens will lay eggs in these boxes; without them, they will lay on the floor and eggs will get dirty.
Mount roost poles (perches) 2 to 3 feet above the floor along the back wall, spaced 12 inches apart horizontally so birds do not peck each other while roosting. Use 2-by-2 lumber or branches 1.5 inches in diameter. Chickens naturally roost at night, so they will use these poles without training. Place a droppings board (a sheet of plywood) under the roosts to catch waste and make cleaning easier.
Leave the rest of the floor bare or covered with 3 to 4 inches of bedding. Chickens scratch and dust-bathe in bedding, which also absorbs moisture from droppings. Change bedding every two to four weeks depending on how wet it gets.
The Door, Ramp, and Run Connection
Cut an access door in one wall at least 2 feet wide and 3 feet tall so you can reach in and work. Hinge it on one side and add a barrel bolt or hook latch on the other. If you want the chickens to move between the house and the outdoor run on their own, cut a smaller pop door (about 12 inches square) near the bottom of one wall and hang a hinged board or sliding panel that you can open in the morning and close at night.
Attach a ramp from the pop door to the ground so chickens can walk in and out without jumping. A straightforward ramp is a piece of 2-by-6 lumber with 1-by-2 cleats nailed across it every 6 inches for grip. Angle it at 45 degrees or less so birds do not slip.
The outdoor run should be built from 2-by-2 lumber and hardware cloth, with a roof or shade cloth to protect from hawks. The run keeps chickens safe from predators while they are outside and prevents them from destroying your garden. A run for 10 birds should be at least 100 square feet.
Predator Protection and Securing the Coop
Use hardware cloth, not chicken wire, for any opening that faces the outside. Raccoons, foxes, and weasels can tear through chicken wire in minutes. Hardware cloth is more expensive but will last years and actually stops predators. Bury it 6 inches into the ground around the perimeter of the run so animals cannot dig under.
The pop door should close automatically at dusk so predators cannot slip in at night. You can buy a timer-operated pop door ($150 to $300) or build a straightforward gravity-hinged door that closes when you pull a rope. Every night, lock the pop door and make sure all windows and vents are find.
Rats are attracted to spilled feed and water. Store feed in a metal garbage can with a tight lid, and remove water bowls at night. Elevate feeders and waterers off the ground so chickens cannot scratch bedding into them.
Tools and Skills You Need
You will need a circular saw or hand saw to cut lumber, a power drill to drive screws, a level to make sure walls are plumb and the roof slopes correctly, a measuring tape, and a square to check corners. If you have never built anything before, this project is still manageable — the frame is just rectangles and the roof is two triangles. Watch a short video on how to cut a straight line and how to drive a screw without stripping the hole, and you are ready.
The hardest part is usually getting the roof slope right and making sure the frame is square. Take your time measuring and checking as you go. A crooked frame will still house chickens, but a roof that does not shed water will rot in two years.
Frequently Asked Questions
Can I use chicken wire instead of hardware cloth?
No. Chicken wire is designed to keep chickens in, not predators out. Raccoons, foxes, and weasels can tear through it easily. Hardware cloth costs more but is worth it — a single predator attack can kill your entire flock in one night.
Do I need a concrete floor inside the coop?
No, but it helps. A dirt or wood floor works if you change bedding regularly and keep it dry. Concrete is easier to clean and lasts longer, but it is cold in winter and can be hard on birds' feet. A compromise is to lay landscape fabric over dirt and change bedding often.
How often do I need to clean the coop?
Remove droppings from under the roosts once a week. Change all bedding every two to four weeks, or more often if it gets wet. A wet coop breeds disease quickly. In summer, you may need to change bedding every two weeks; in winter, every three to four weeks.
Can I make the coop mobile so I can move it around my yard?
Yes. Build it on skids (2-by-6 runners) instead of a fixed frame, and add handles so two people can drag it. A mobile coop lets chickens graze fresh grass and spreads their manure evenly. Keep it under 400 pounds so it stays movable, and move it every few days so the ground underneath does not become bare mud.
What if I want to add more than 10 chickens later?
Build the house for 10 now and add a second smaller house (20 square feet) later if you want more birds. Overcrowding causes pecking, disease, and stress. It is easier to build a second coop than to expand the first one.