A boxed chicken coop kit costs less than our plans in dollars and holds far fewer hens than its box says: the three kits we measured carry about one, one and five birds on published space rules, against stated capacities of 4 to 6, 2 to 4 and 8 to 10. Our plans cost more, take longer and fit the flock you actually plan to keep. This page shows the arithmetic, from one retailer’s listings read on 2026-10-07.
Kit searches sit in a shopping results page, and we will not win the product slot. What the page can do is answer the question every kit buyer ends up asking, which is whether the number on the box is real. Ratings are left out on purpose.
Three kits, one retailer, one day
| Kit A | Kit B | Kit C | |
|---|---|---|---|
| Listed as | 39-inch wooden coop | 70-inch coop on wheels | walk-in coop with run |
| Stated capacity | 4-6 chickens | 2-4 chickens | 8-10 chickens |
| Overall size | 39.4 x 33.9 in | 70 x 22 in | 95 x 80 in |
| Footprint | 9.3 sq ft | 10.7 sq ft | 52.8 sq ft |
| Price | $170.95 | $84.99 | $519.95 |
| Wood as listed | solid fir | fir | cedar structure |
Kit A’s listing breaks the house down: 4 sq ft of main house and a 2 sq ft nest box, and the maker recommends using it with a run. Kit C lists a run area of 95 by 49 inches inside its 95 by 80 footprint.
What the space rules say those footprints hold
Published housing numbers combine an indoor and an outdoor figure per bird. Penn State’s housing page gives laying hens 1.5 sq ft inside and 8 outside, 9.5 in all, the lowest total anywhere we looked. UF/IFAS says at least 3 sq ft indoors and a run of 8 to 10, and the national poultry extension network says 3 to 4 inside and 10 outside. Take Penn State’s 9.5 as the generous case and divide each footprint by it.
| Kit A | Kit B | Kit C | |
|---|---|---|---|
| Birds the whole footprint supports at 9.5 sq ft each | 1 | 1 | 5 |
| Stated capacity | 4-6 | 2-4 | 8-10 |
| Footprint per stated bird | 1.5-2.3 sq ft | 2.7-5.3 sq ft | 5.3-6.6 sq ft |
Our own plans work out to 10.7 to 16 sq ft of total footprint per hen at their rated capacities, and that is with house, nest bank, roost and run all counted. The 4x6 coop is 48 sq ft for 3 to 4 hens, 12 to 16 per bird. The 4x4 starter is 32 sq ft for 2 to 3 hens. The 6x8 coop is 96 sq ft for 6 to 9. Our default of 4 sq ft of coop floor per bird sits above the extension floors, so these numbers are not tuned to flatter us.
None of this makes the kit capacity a lie in every case. A kit built for chicks, a couple of bantams or birds that free-range all day can carry what it claims. But a listing that says 4 to 6 for a house with 4 sq ft of floor is counting hens very generously.
Dollars: the kit wins on cash
Per square foot of total footprint the kits are cheap, and per honest hen they are cheaper than our plans.
| Per sq ft of footprint | Per bird at the 9.5 sq ft count | |
|---|---|---|
| Kit A | $18.43 | $171 |
| Kit B | $7.95 | $85 |
| Kit C | $9.85 | $104 |
| Our 4x4 starter | $52-$67 | $550-$717 |
| Our 4x6 | $40-$51 | $475-$613 |
| Our 6x8 coop | $28-$36 | $300-$383 |
Our figures are materials only, at 2026 prices from each plan’s own bill of materials, with no labor and no tools. The kit figures are the listed retail prices. Per bird for our plans is at the top of their rating. Kit C’s $104 is its price over 5 birds.
So if the question is how many dollars to spend per hen, a kit wins. The cost calculator and the cheap coop plans guide show where our own numbers can come down.
What the listings do not say
Three things decide how long a coop lasts and none is on these pages. The lumber thickness: the listings say fir or cedar and give no board dimension. The mesh: only the unavailable YOPTO listing names one, a half-inch galvanized mesh. And how long assembly takes: Kit C says four packages with tools included and gives no hours.
The mesh matters. University of Kentucky Extension says the least weasel can squeeze through a hole as small as a quarter inch, and that raccoons will reach through wire to grab birds. Our plans use quarter-inch, 19-gauge hardware cloth on every opening with a 12-inch buried apron. A coop with half-inch mesh or chicken wire on its openings leaves exactly that quarter-inch gap open, so ask what the mesh is before you buy.
Our framing is 2x4 studs and 2x6 joists, 47 2x4s and 7 2x6s in the 4x6, on 4x4 posts. That is a different object from a flat-pack panel house. It also takes 18 to 26 hours to build against whatever a kit’s few packages take.
When a kit is the right call
If you rent, can move out any week, want to try three hens before committing, or own no saw and do not want to, a kit is a sound answer. Buy it with the arithmetic above in your head: divide the footprint by 9.5 and keep that many hens, and plan to add a real predator-proof layer if raccoons live nearby. If you will keep a flock for years, the plans cost more once and the coop lasts. A prebuilt coop from a builder is a third path with its own math.