What You Need to Build a Basic Chicken House
A small chicken house for three to six birds needs four walls, a roof, a floor, and ventilation—nothing more complex than a garden shed. The simplest design uses a wooden frame covered with plywood or boards, sits on concrete blocks or a gravel base to keep it off wet ground, and costs between $150 and $400 depending on whether you use new or reclaimed materials. You do not need electricity, running water, or a foundation; you do need to keep predators out and moisture out, and to give the birds room to move without crowding.
The footprint should be at least 3 feet by 4 feet for a small flock—that is roughly 12 square feet of floor space, which meets the standard of 3 to 4 square feet per bird. Taller is easier to work in: 5 or 6 feet at the peak lets you stand up to clean and collect eggs without crouching. The roof should overhang the walls by at least 12 inches on all sides to shed rain away from the wood.
Key Takeaways
- A small chicken house for three to six birds needs a wooden frame, plywood or board walls, a sloped roof, and a raised floor on concrete blocks or gravel to prevent rot and predator entry.
- The minimum floor space is 3 to 4 square feet per bird, so a 3-by-4-foot coop holds three to four birds comfortably and costs $150 to $400 in materials.
- Ventilation near the roof prevents moisture buildup and respiratory illness; a hinged roof panel or gable vents work well for small coops.
- Hardware cloth (not chicken wire) over all openings stops raccoons, foxes, and hawks; bury it 6 inches into the ground or bend it outward to block digging predators.
- A removable floor panel or hinged roof makes cleaning and egg collection much faster than a sealed design.
Choosing Materials and Tools
Use pressure-treated lumber for the frame and any wood that touches the ground—it resists rot for 15 to 20 years. For walls, you can use new plywood ($30 to $50 per sheet), reclaimed barn wood or fence boards (often free or cheap), or a mix of both. Avoid treated wood for roosts or nesting boxes where birds sit for hours; use untreated pine or cedar instead.
For the roof, corrugated plastic panels ($20 to $40 per panel) are lighter and easier to install than metal or shingles, and they let you see inside without opening the door. Metal roofing lasts longer but costs more and requires more fasteners. Asphalt shingles work but are heavier and overkill for a small structure.
You will need a circular saw or hand saw, a drill, a tape measure, a level, a hammer, and a staple gun. Fasteners should be galvanized or stainless steel screws (not nails, which loosen over time) and galvanized staples. Hardware cloth comes in rolls; buy 1/4-inch or 1/2-inch mesh, not the larger chicken wire, because raccoons can tear through chicken wire.
Building the Frame and Floor
Start by setting eight concrete blocks in a rectangle on level ground—four at the corners and four in the middle to support the center of the floor. Space them so the frame sits on top without overhang. Cut four pressure-treated 2-by-4s to length: two at 3 feet (the short sides) and two at 4 feet (the long sides). Lay them on the blocks and check that the corners are square using the 3-4-5 method: measure 3 feet along one side, 4 feet along the adjacent side, and the diagonal should measure 5 feet.
Screw the corners together with 3-inch galvanized screws, two screws per corner. Cut a plywood floor to fit inside the frame and screw it down, leaving a 1-inch gap around the edges for drainage. Drill 1/2-inch holes in the plywood every 2 feet so water drains through instead of pooling. If you want a removable floor for easier cleaning, skip the screws and just lay the plywood on top—it will stay in place under its own weight.
Framing the Walls and Roof
Cut eight 2-by-4s to 5 feet for the vertical wall studs—four for each long side and two for each short side. Screw them to the frame at 2-foot intervals, then screw horizontal 2-by-4s across the top to create a plate. The walls now form a rectangle 5 feet tall.
For the roof, cut two 2-by-6s or 2-by-8s to 5 feet and screw them to the top plate at an angle to form a peak—this creates the slope that sheds water. The peak should be 2 to 3 feet higher than the walls. Cut plywood or boards to cover the roof frame, then attach corrugated panels or shingles on top. Overhang the roof 12 inches on all sides and slope it so water runs off the back or sides, not toward the door.
Adding Ventilation and Security
Cut two 12-inch-square openings near the top of opposite walls and cover them with hardware cloth stapled to the frame. These vents let air move through the coop without creating drafts at bird level. In winter, you can cover one vent with a hinged panel to reduce air flow; in summer, leave both open. Do not seal the coop completely—moisture from droppings and bedding will build up and cause respiratory illness.
Cover the entire front of the coop with hardware cloth, leaving only a 12-inch-square opening for the door. Bury the hardware cloth 6 inches into the ground around the perimeter, or bend it outward 12 inches and stake it down; this stops raccoons and foxes from digging under the walls. Staple the cloth every 4 inches so nothing can peel it back. If you build a hinged roof panel instead of a fixed roof, cover the opening with hardware cloth and hinge it so you can reach inside to collect eggs and clean.
Interior Layout: Roosts and Nesting Boxes
Inside, mount two roosts (wooden dowels or branches, 1 to 1.5 inches in diameter) at different heights—one at 2 feet and one at 3 feet—so birds can hop up and down. Space them 12 inches apart horizontally so droppings from the upper roost do not fall on birds below. Screw them to the walls or to vertical supports.
Build one nesting box for every three birds: a 12-inch cube with a hinged lid on top and an opening on one side. Line it with straw or wood shavings. Mount the boxes 18 inches off the floor so birds can jump in but predators cannot reach them easily. If you want to collect eggs without opening the coop door, build the boxes so they open to the outside—a hinged panel on the exterior wall lets you reach in from outside.
Spread 4 to 6 inches of pine shavings or straw on the floor for bedding. Do not use cedar shavings; they are toxic to birds. Change the bedding every two weeks or when it becomes damp.
Finishing and Weatherproofing
Caulk all gaps where walls meet the roof and where the frame sits on the blocks. Use exterior-grade caulk rated for wood. Paint or stain the outside to protect the wood from sun and rain—use non-toxic exterior paint, not interior paint. The inside does not need paint; bare wood is fine and easier to clean.
Check that the door closes tightly and latches securely. A straightforward hook-and-eye latch works, but a sliding bolt is stronger against determined predators. Make sure the door swings freely and does not bind on the frame.
Once the coop is finished, let it sit for a week before moving birds in so any paint or caulk fumes can clear. Spread fresh bedding, fill the water and feed containers, and the coop is ready.
Frequently Asked Questions
Do I need a run attached to the coop?
No, but most people build one. A run is an enclosed outdoor area where birds can peck and dust-bathe safely during the day. It can be as straightforward as a wooden frame covered with hardware cloth, attached to the coop door. Birds need to be locked inside the coop at night for protection, so a run lets them have outdoor time without constant supervision.
Can I use chicken wire instead of hardware cloth?
Chicken wire keeps birds in but not predators out—raccoons and foxes tear through it easily. Hardware cloth is stronger and worth the extra cost. Use 1/4-inch or 1/2-inch mesh; anything larger leaves gaps.
How do I keep the coop from getting too hot in summer?
Open both roof vents and leave the door open during the day if the run is find. Paint the roof white or light gray to reflect heat. In very hot climates, shade cloth draped over the roof helps. Birds can tolerate cold better than heat, so ventilation matters more in summer than insulation in winter.
What is the best bedding for the floor?
Pine shavings are the standard—they absorb moisture, are cheap, and break down into compost. Straw works but compacts and holds moisture. Avoid cedar and walnut shavings; they are toxic. Change bedding every two weeks or sooner if it gets wet or smells.
Can I move the coop to a different spot?
Yes, if you build it without a permanent foundation. A coop on concrete blocks can be lifted and moved by two people. Moving it every few months lets grass recover under the run and reduces parasite buildup in the soil.