Laying Boxes for Chickens: Size, Height and Placement

Hens that ignore their nest boxes are rarely being stubborn. More often the boxes are too big, too bright, mounted higher than the roost bar, or packed with too few bedding options. Good laying boxes for chickens are small, dim, easy to clean and placed so birds want to settle in them rather than sleep in them. Get the size, count and height right and the rest of the setup gets much simpler.

Here is the quick version. Build or buy boxes about 12 by 12 inches for standard breeds and 14 by 14 inches for large breeds, with roughly 12 inches of height. Plan one box for every 4 to 5 hens. Mount the bottom of the boxes 18 to 24 inches off the floor and always lower than the roost bars. Line them with soft, dry bedding and put them in the darkest, quietest corner of the coop.

Coming up: dimensions in more detail, placement inside the coop, bedding choices, roll-away and outside-access designs, and how DIY wooden boxes compare with ready-made metal banks.

Sizing Laying Boxes for Chickens

A nest box should feel snug and enclosed. Hens look for a tight, sheltered spot, and oversized boxes invite two birds at once, which leads to crowding and broken bedding. Use these starting dimensions and adjust for your breeds.

Add a lip across the front of each box, about 3 to 4 inches tall, to hold bedding in. A small landing perch 4 to 6 inches in front of the opening gives birds a step to hop onto. Keep the top of the box sloped at about 45 degrees if it sits in the open coop, since a flat top quickly becomes a favorite perch and a mess to clean.

How many boxes you need

One box per 4 to 5 hens is the usual rule. Hens often share a favorite box and ignore others, so a flock of 10 needs two or three boxes, not ten. Adding one extra box above the minimum helps when two birds want the same spot at the same time. Too many boxes can backfire, since unused boxes tend to become sleeping spots.

Height and Placement Inside the Coop

Chickens instinctively sleep on the highest perch available. If your nest boxes sit higher than the roost bars, birds will sleep in the boxes and fill the bedding with droppings. The fix is simple: keep the bottom of the boxes at 18 to 24 inches off the floor and place roost bars at least 12 inches higher than the top of the boxes.

Placement rules that work in most coops:

• Choose the darkest wall, away from the pop door and windows.
• Keep boxes out from under the roost bars so droppings do not fall into them.
• Leave enough floor space in front for a bird to land and turn around.
• Mount boxes on a wall you can reach from outside if you plan an external hatch.
• Avoid spots right beside vents where drafts blow directly into the box.

A small curtain of fabric strips across the front of each opening dims the interior and gives shy birds more privacy. It also discourages boxes from turning into a hangout spot.

Bedding and Liners

Soft, dry bedding cushions birds and keeps boxes easy to clean. Common choices include pine shavings, chopped straw, hemp bedding and removable rubber or plastic nest pads. Shavings absorb moisture well and are easy to scoop. Straw is cheap but can harbor pests if left damp. Nest pads lift out for rinsing, which is handy in metal banks.

Aim for 2 to 3 inches of loose bedding. Refresh it whenever it looks soiled, and fully swap it out at least every couple of weeks. Avoid cedar shavings in enclosed boxes, since the strong aromatic oils can irritate some birds in a small space. Wear gloves when changing bedding, and wash your hands with soap and water afterward.

Roll-Away and Outside-Access Designs

Two design features make daily chores faster and keep the coop cleaner.

Roll-away boxes

A roll-away box has a floor tilted 8 to 12 degrees toward the back, where a covered channel runs along the rear wall. A thin pad on the sloped floor keeps the surface soft. The design keeps the nesting area tidy because birds cannot scratch or trample what settles into the covered channel. The trade-off is cost and a slight adjustment period, since some hens take a week or two to accept a sloped floor.

External access hatches

A hinged lid on the outside wall lets you check boxes without walking into the coop. It is convenient in winter and keeps boots out of the bedding. The catch is security: every outside hatch is one more opening a raccoon can work on. Use a two-step latch or a clip on each hatch, and seal the hinge side with hardware cloth or a weather strip so small predators cannot squeeze through gaps.

DIY Wood Boxes vs Metal Nest Box Banks

You can build nest boxes from plywood in an afternoon, reuse sturdy plastic storage crates or buy galvanized metal banks. Metal banks sold at farm stores typically come in rows of 3 to 10 compartments, often with a perch rail and a hinged front.

Building a simple wooden bank

Materials for a three-box bank include one sheet of half-inch or three-quarter-inch exterior plywood, 1-5/8 inch exterior screws, wood glue, a 1×4 for the front lip and a scrap of 2×2 or dowel for a perch rail. Tools include a circular saw, drill, square and tape measure.

1. Cut a back panel 38 inches wide by 16 inches tall, a bottom 38 by 12 inches, and two ends plus two dividers 12 by 16 inches.
2. Glue and screw the bottom to the back panel, then attach the ends and dividers every 12 inches.
3. Add a sloped roof panel at about 45 degrees so birds cannot perch on top.
4. Screw the 1×4 lip across the front bottom edge to hold bedding.
5. Seal all interior seams with a nontoxic exterior paint or sealer to reduce hiding places for mites, and let it cure fully before use.
6. Mount the bank to wall studs or framing with structural screws so the full weight of three birds and bedding cannot pull it loose.
7. Attach the perch rail 4 to 6 inches in front of the openings.

Picking a ready-made chicken nesting box

If you buy instead of build, look for galvanized steel or thick plastic, a removable bottom tray or pads, a sloped top, and mounting holes that line up with typical stud spacing. Check the listed compartment size against the sizing chart so the boxes fit your breeds.

Nest Boxes Are Not Roosting Boxes

Shoppers sometimes search for chicken roosting boxes when they mean nest boxes, but the two serve opposite purposes. Birds should sleep on open perches, not inside enclosed boxes. Roost bars work best as 2×4 lumber set with the wide side up, spaced about 12 inches apart horizontally, with 8 to 10 inches of bar per bird. If your hens are sleeping in the nest boxes, lower the boxes, raise the roosts, or temporarily block the box openings at dusk and reopen them in the morning.

Troubleshooting

• Birds sleeping in boxes: boxes are higher than roosts or roosts are uncomfortable. Adjust heights and add more roost length.
• Everyone uses one box: normal behavior. Make sure the favorite box is kept clean and add one more box nearby.
• Boxes ignored entirely: they may be too bright, too exposed or too high. Move them to a darker wall and add a curtain.
• Bedding kicked out constantly: raise the front lip to 4 inches.
• Droppings in boxes: relocate boxes out from under roosts and add a sloped top.

Cost Ranges

A DIY plywood bank usually costs little beyond a sheet of plywood and fasteners. Single plastic or wooden boxes are inexpensive. Galvanized metal banks with several compartments typically run from under a hundred to a few hundred dollars depending on the number of holes, and roll-away banks sit at the higher end of that range.

When to Call a Pro

Mounting a nest box bank is a basic carpentry job, but get help if the coop walls lack solid framing to screw into, if you are cutting a new opening for an external hatch in a wall that carries roof load, or if the coop is part of a larger outbuilding that needs repairs. A handyman can add blocking between studs and frame a hatch opening properly in an hour or two.