What You Need to Build a Chicken House and Run

A chicken house is the shelter where your birds roost and lay eggs; a run is the enclosed outdoor space where they scratch and forage safely. Building both yourself costs less than buying prefabricated coops and lets you size them for your flock. A basic house needs a roof, walls, nesting boxes, and roosts. A run needs sturdy fencing, a frame, and a roof or netting to keep predators out. Most backyard setups use wood framing, hardware cloth (not chicken wire), and corrugated panels or shingles.

The work is straightforward carpentry—cutting, fastening, and assembling—and does not require power tools, though they speed the job. A small house for three to four birds takes a weekend; a larger run takes another weekend. The materials cost between $200 and $500 depending on size and finish.

Key Takeaways

  • A chicken house needs solid walls, a sloped roof for drainage, nesting boxes at least 12 inches wide, and roosts 18 to 24 inches off the ground.
  • Use hardware cloth (1/4-inch mesh) for all openings and buried at least 6 inches underground to stop predators from digging under the run.
  • Build the house on a slight slope or with a concrete base to prevent water pooling and rot.
  • Size the house at 3 to 4 square feet per bird inside and 8 to 10 square feet per bird in the run for healthy, productive flocks.
  • Ventilation near the roof and a removable floor panel make cleaning and disease prevention much easier.

Sizing Your House and Run for Your Flock

The number of birds you plan to keep determines the footprint. A standard rule is 3 to 4 square feet of floor space inside the house per bird and 8 to 10 square feet in the run per bird. A flock of four birds needs a house roughly 4 feet by 4 feet (16 square feet) and a run at least 8 feet by 5 feet (40 square feet). Larger is always better—crowding leads to pecking, disease, and poor egg production.

Sketch your space on paper before you buy materials. Measure the area where the coop will sit, check for shade in summer and wind exposure in winter, and confirm the ground drains well. A spot that gets morning sun but afternoon shade is ideal. Avoid low spots where water collects after rain.

Building the Chicken House Frame and Walls

Start with a rectangular frame made from 2-by-4 lumber. Lay out the perimeter on level ground, then cut and assemble the base using 3-inch screws or bolts. The frame should sit on concrete blocks or a shallow concrete pad to keep wood off damp soil and prevent rot. If you use blocks, space them every 2 feet along the perimeter.

Build the walls by attaching 2-by-4 studs vertically to the base frame, spaced 16 inches apart. The walls should be at least 18 inches tall so you can reach inside to collect eggs and clean. Attach plywood sheathing or wooden boards to the studs, leaving one wall or section removable for cleaning access. Seal gaps with caulk to stop drafts and keep out small predators.

The roof should slope at least 15 degrees to shed water and snow. Build two roof panels from 2-by-4s and plywood, then hinge one side so you can open it for ventilation and cleaning. Cover the roof with corrugated plastic panels, metal roofing, or asphalt shingles. Overhang the roof 6 inches on all sides to keep rain off the walls.

Installing Roosts, Nesting Boxes, and Ventilation

Roosts are where chickens sleep at night. Use 2-by-2 or 2-by-3 wooden beams, rounded slightly on top so birds grip comfortably. Mount them 18 to 24 inches above the floor, running the length of the house. Space multiple roosts 12 inches apart horizontally so droppings from upper birds do not fall on lower ones. Angle the roosts slightly so birds do not slide off.

Nesting boxes are where hens lay eggs. Build them from plywood or wood boards, making each box 12 inches wide, 12 inches deep, and 12 inches tall. Mount them 12 to 18 inches off the floor along one wall. One box serves three to four birds. Line each box with 2 to 3 inches of straw or wood shavings, and add a small lip at the front (2 inches high) so eggs do not roll out.

Ventilation prevents ammonia buildup and respiratory disease. Cut openings near the roof on opposite walls, each about 12 inches by 12 inches. Cover them with hardware cloth to keep predators and wild birds out. In winter, you can partially close these vents with hinged panels, but never seal them completely. A small door or pop-hole (8 inches by 8 inches) in the lower wall lets birds enter and exit the run.

Building the Run and Predator-Proofing It

The run is a frame of 2-by-2 lumber forming a rectangle, with a roof frame on top. Make the frame sturdy—predators will test it. Attach hardware cloth (1/4-inch mesh) to every side, including the top, using staples or screws every 6 inches. Do not use chicken wire; it tears easily and does not stop determined predators like raccoons or foxes.

Bury the hardware cloth at least 6 inches underground around the perimeter, bending it outward at the bottom to stop digging predators. If you cannot dig, lay the cloth flat on the ground outside the run and cover it with soil or mulch. This stops raccoons and foxes from tunneling under the walls.

Cover the roof with hardware cloth or netting to stop hawks and owls. If the run is large, use a frame of 2-by-2s with hardware cloth stapled on top. For smaller runs, bird netting works and is easier to remove for access. Leave one section of roof hinged or removable so you can reach inside to collect eggs and refill feeders without opening the door.

Connecting the House to the Run

The pop-hole is the doorway between the house and run. Cut an 8-inch by 8-inch opening in the lower wall of the house, facing the run. Attach a wooden frame around the opening and install a sliding door or hinged flap that you can close at night. Many keepers use a straightforward wooden slider that slides up and down in grooves cut into the frame.

Position the house at one end of the run so the pop-hole opens directly into the run. This lets birds move freely during the day and retreat to the house at night. If you have a large run, you can position the house in the middle and let birds access it from both sides, but this uses more space.

Flooring, Drainage, and Maintenance Access

The house floor can be solid wood, concrete, or removable panels. Solid wood is warmest but rots over time and harbors parasites. Concrete is durable and straightforward to clean but cold in winter. Many keepers use removable wooden panels so they can pull them out for deep cleaning and replace them when they wear. Whatever you choose, slope the floor slightly toward one corner so water drains out.

Install a removable panel or hinged door in the floor or one wall so you can access the interior for cleaning. Chickens produce a lot of manure, and bedding (wood shavings or straw) needs changing every two to four weeks. A large access panel makes this job much faster and less frustrating.

The run floor can be bare soil, sand, or wood chips. Bare soil drains well but gets muddy in rain. Sand drains fast and lets birds dust-bathe naturally. Wood chips absorb moisture and manure but need replacing every few months. Whatever you use, rake it regularly to break up wet spots and prevent parasites.

Frequently Asked Questions

Do I need a concrete base or can I build on soil?

Soil alone invites rot and burrowing predators. Use concrete blocks under the frame corners and perimeter, or pour a shallow concrete pad. If you cannot do either, lay hardware cloth flat on the ground under the entire house footprint before building, extending it 12 inches beyond the walls on all sides.

How much ventilation is too much in winter?

Chickens need fresh air year-round, but drafts at roost level cause frostbite. Keep roof vents open always. Close lower vents or pop-holes only during extreme cold, and only partially. Moisture buildup from sealed coops causes more disease than cold air does.

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 (1/4-inch mesh) is stronger and worth the extra cost. Use it for all openings and buried sections.

What wood is best for building a coop?

Untreated pine and cedar resist rot better than other softwoods. Avoid pressure-treated wood—the chemicals are toxic to birds. Hardwoods like oak last longer but cost more. Paint or stain exterior wood to extend its life, but use bird-safe finishes.

How often do I need to clean the house?

Remove wet bedding and droppings weekly. Do a full bedding change every two to four weeks depending on flock size and house size. Larger houses with more birds need more frequent changes. Good ventilation and dry bedding reduce cleaning frequency.