Chickens are the pet most often bought on the strength of a pre-built coop that says "fits six" and fits three. These are the numbers Penn State, Minnesota and Cornell Extension and the Merck Veterinary Manual actually publish, in the order you will need them.
As an Amazon Associate, I earn from qualifying purchases.
Every link below is a search, not a product endorsement. The criteria come from the extension services cited on this page; choosing the item is yours. We have not tested specific brands and will not pretend otherwise.
The series behind this listThe New Owner's Handbook seriesSeven first-year handbooks so far, one animal each. The chicken volume is the next one written; until then this page carries its shopping list. Paperbacks on Amazon · by Casey WhitfieldYou came here from the handbook — this is the current version of its shopping list, kept up to date as products change. Every link is a search, not a specific brand, exactly as the book says.
Chicken wire keeps chickens in. It does not keep a raccoon out — they reach through it and tear it. Every opening on the coop and run gets half-inch hardware cloth, and the fence line is buried a foot deep and toed outward six inches. That is Penn State's number, and it is the single line on this page that decides whether you still have a flock in October.
Cornell Extension's comparison is blunt: a brooder plate runs around 125°F at the surface and carries very little chance of fire; a 250-watt lamp does not. Buy the plate sized for your chick count. If you use a lamp anyway, it hangs from a chain (never a clamp), 20 inches from anything flammable, in a porcelain socket, with a guard on the bulb.
Search Amazon →Penn State's floor space per chick: a quarter square foot in week one, half by week three, a full square foot by week five to eight. Six chicks need six square feet before they leave the brooder. A large stock tank or a purpose-built box; the cardboard box lasts about nine days.
Search Amazon →95°F at chick height in week one, down five degrees each week until it matches the room. You cannot judge that by hand. A probe thermometer reading at floor level is the cheapest thing on this list and the one that catches a failing plate at 2 a.m.
Search Amazon →A narrow-lip drinker, never a bowl — Cornell's warning is that chicks chill or drown in open water. Minnesota Extension's sizing: one gallon per 50 chicks for the first two weeks, then roughly a gallon of capacity per ten birds.
Search Amazon →One linear inch of feeder space per chick to start, two inches from week two. A trough with a spinner or a covered feeder stops them standing in it, which is where the droppings and the disease go.
Search Amazon →Two to three inches deep. Not sawdust or fine litter in the first weeks — they eat it. Never newspaper alone: the slick surface splays their legs. Paper towel over the shavings for the first two days lets them find the feed.
Search Amazon →18–24% protein starter for the first eight weeks, then grower to twenty weeks, then layer. Penn State's line is in capitals in most flock guides: never feed laying ration to young fowl — the calcium load damages kidneys that are still growing.
Search Amazon →Minnesota Extension has chick-sized grit available from the start once anything other than starter crumble is on offer. A one-pound bag lasts a first flock the whole brooder period.
Search Amazon →Fully feathered at around six weeks, they go outside. Inside space per bird: 1.5 square feet for a laying hen, 2 for a large breed, from Penn State and Merck both. Divide a pre-built coop's advertised capacity by two and you have its real capacity. Ventilation up high, draught-free down low; a coop that smells of ammonia is under-ventilated, not under-cleaned.
Search Amazon →Nineteen-gauge, half-inch mesh, on every window, vent and gap, and skirted out from the base. This is what replaces the chicken wire the run came with. Buy more than the plan says; you will use it.
Search Amazon →Eight square feet per hen outside, ten for a large breed. Covered on top — Penn State names hawks as the reason. A run you can stand up in is the one you will actually clean.
Search Amazon →Two for the first four hens, then one more for every four. Twelve inches square with a three-to-four-inch lip so the eggs stay in. Lower than the roosts, or they sleep in the boxes and you wash every egg.
Search Amazon →Six linear inches per bird, 18 to 24 inches off the floor, bars a foot apart. A 2×4 on the flat, edges rounded, is what most extension diagrams show; a bought bar is fine if it is wide enough for the foot to rest flat.
Search Amazon →Minnesota's rule of thumb: a 15-inch tube feeder feeds about 30 birds, so any hanging feeder is oversized for a first flock — which is fine. Hang it at back height and the bedding stays out of it.
Search Amazon →Merck's figure is 1.5 to 3.5 parts water per part of feed, every day, all year. A nipple or cup waterer keeps it clean without a daily scrub; a heated base matters if you are north of the frost line.
Search Amazon →Free-choice, in its own dish, from the first egg. Merck puts a laying hen's calcium need at 3.5–6% of the diet against under 1.2% for a growing bird — which is why it is offered separately rather than mixed in.
Search Amazon →Nice, not necessary. It buys you the evening you forget. Buy it after the first month, when you know which door and which direction.
Search Amazon →