Nesting boxes, and getting clean eggs out of them

The numbers

Penn State Extension gives the box count: two nests for the first four hens, then one more nest for every four additional hens. That is slightly more generous than the folk rule of one box per four birds that circulates online, and it is the figure used throughout this site.

They will all use the same box anyway

Provide four immaculate boxes for six hens and you will find all six using one of them, sometimes two at a time, while the others sit empty. This surprises every new keeper and it is completely normal — a nest that smells and looks used signals a safe place to lay.

So the purpose of the box count is not to end the queue. It is to ensure that when a hen genuinely needs a nest and the favorite is occupied, there is somewhere acceptable to go. Adding a fifth box to four will not change the queue; it will give you another surface to clean and another place for mites to live.

Mounting height matters more than box size

Hens sleep in the highest place available. If the nest boxes sit above the roost, they will roost in the boxes — which means the boxes are fouled every night and the eggs are laid in soiled bedding. This is the most common nest box mistake and it is entirely a mounting problem.

1. 18-24 inches above the floor, matching the roost height guidance.
2. Always lower than the roost. If the roost is at 24 inches, the boxes go at 18.
3. A narrow or hinged landing perch in front — narrow, so it does not become a roost itself.
4. In the darkest, quietest corner. Hens look for privacy and will choose a dark bucket behind the feed bin over a bright box every time. A strip of curtain across the front works well for a box that cannot be moved.
5. A two to three inch lip across the opening, so nest material and eggs stay in.
6. A sloped roof if the box has a top inside the coop, so hens cannot stand on it.

Roll-away or standard

The main decision in this section. A roll-away box has a gently sloped floor, so the egg rolls out of the hen's reach into a covered tray within seconds of being laid. A standard box keeps the egg where it was laid until you collect it.

Roll-away is the single biggest upgrade available for egg quality, for three reasons: the egg cannot be stood on by a hen with muddy feet, it cannot be broken by another hen shuffling into the nest, and — the important one — it cannot be tasted. Egg eating almost always starts with an accidentally broken egg, and once learned the habit is very hard to stop. A roll-away box removes the opportunity entirely.

The one hard incompatibility is broodiness: a hen cannot sit on eggs she cannot reach. If you want hens to hatch, keep at least one standard box. The full comparison.

Material, because this is where mites live

Nest box material matters more than coop material, for a specific reason: a laying hen sits in a box for roughly an hour at a time, every day, with her skin against the surface — and red mite lives in the structure rather than on the bird, breeding in cracks, joints and the end grain of timber.

A molded plastic or metal box has none of those. A wooden one has dozens. Keepers who have had an infestation almost always replace nest boxes first, and it is the one component in a wooden coop most worth swapping out even if you keep everything else. A broken egg also soaks into timber grain, which smells, attracts flies and teaches egg eating.

Nest material

An excelsior or aspen pad is the best general answer: it cushions the egg at the moment of laying, springs back under a hen instead of compacting flat, and stays where you put it — which loose shavings do not. 13 x 13 inches is the de facto standard size because most boxes are built around it. In a roll-away box, use a thin pad only; loose bedding collects at the low end and blocks the roll.