ChickenCoopCalc

How many nesting boxes per chicken?

Published guidance is one nest per 4 to 5 hens. Box size, height, and bedding still decide whether the hens use them.

Quick answer: One nesting box per 4 to 5 hens: six hens need 2 boxes, twelve need 3. Hens share boxes, so extra boxes buy little. This site's calculator counts one per 3, which is tighter than that range.

The rule and the chart

1 nesting box per 4 to 5 hens. UC Master Gardeners, Maryland Extension, and Utah State Extension all state that rate. The chart below uses one per 4, the tighter end. Six hens need 2 boxes; twelve need 3.
FlockBoxes (1 per 4)Extra box for broody breeds
3 hens11
6 hens22
8 hens23
12 hens34
20 hens55

The standard column is one box per 4 hens, the tighter end of the published 4-to-5 range. The second column adds a box for broody-prone breeds (Silkies, Cochins, Orpingtons), which is a site allowance, not a second published ratio. Penn State's count is different: two nests for the first four hens, then one more per four additional hens. What Maine, Maryland, and Georgia say about a hen that is already sitting — and what the nest function returns when she is moved off the shared boxes — is on how to care for a broody hen.

Diagram showing six hens at one nesting box per four hens, which is two boxes, each marked at least 12 by 12 inches.
Six hens at one box per 4 hens need 2 boxes. Penn State says a chicken nest should be at least 12×12 inches. The calculator's tighter 1-per-3 count is not drawn here.

Box specs that matter

Why more boxes doesn't mean more eggs

New keepers over-buy boxes expecting each hen to want her own. Instead, hens share — and often queue for one specific favorite while identical boxes sit empty. One per 4 to 5 still works because the favorite turns over and the rest are overflow. If queueing breaks eggs, a dummy egg in an empty box spreads the traffic, or you add one box.

Nesting boxes vs coop size

Boxes come out of your coop floor budget, not in addition to it. A 24 sq ft six-hen coop (4×6 ft) fits two 12-inch boxes on one wall with barely a footprint — about 2 sq ft total — but badly placed boxes, ones hens sleep in or refuse, push laying into corners and eat your effective floor space. Get the coop sizing right first, then hang the boxes low, dark, and below the roosts.

As an Amazon Associate I earn from qualifying purchases. The Amazon links below are affiliate links; they don't change the math.

Affiliate

Plastic roll-out nesting boxes, washable nest pads, and ceramic dummy eggs are all standard Amazon stock and all spec-list items above. nesting boxes on Amazon · dummy eggs on Amazon

Building boxes vs buying them

A roll-out floor sends the egg to a collection tray, so the hen does not reach it and the egg stays out of the bedding. These pages do not publish a price for a plywood box or a plastic box. They also do not publish a 14 by 14 inch nest. Penn State's minimum, already in the FAQ, is at least 12 by 12 inches.

Placement still decides whether hens use the box: the darkest corner of the coop, away from the pop door's draft, with the front lip at roost-step height so hens hop up rather than jump. If a box sits unused, it is usually too bright, too low, or catching wind. Move it before blaming the hens.

Affiliate

Plastic roll-out nesting boxes, washable nest pads, and ceramic dummy eggs are all standard Amazon stock and all spec-list items above. nesting boxes on Amazon · dummy eggs on Amazon

FAQ

How many nesting boxes for 6 hens?

Two boxes at one per 4 to 5 hens. Penn State says at least 12×12 inches, with the nest at least 2 feet off the ground. Utah says no less than 18 inches off the floor. Keep the boxes below the roost.

Do hens need individual nesting boxes?

No. The published rate is one shared box per 4 to 5 hens, not one box per hen.

What do I put in the nesting box?

About two inches of clean, dry pine shavings or straw, which is what Penn State and Maryland describe. Replace material that gets wet or coated with a broken egg. These pages do not give a cedar warning.

Related: the 6-hen coop sizing math, feed cost per month, and the coop calculator for any flock size.

Sources & Standards

Published references for coop space, nests, and feed:

Frequently asked questions

Is this calculator free?

Yes — free to use, no signup, no email required.

How accurate is the estimate?

Estimates follow industry-standard sizing rules and common safety margins. Always confirm with a licensed professional for final sizing.

Can I use this on mobile?

Yes — the page is fully responsive and works on phones, tablets, and desktop.