Chicken Coop Door Guide 2026: Pop-Door Sizes, Manual vs Automatic, and Predator-Proof Designs

Quick Answer: A chicken coop door, or pop door, for standard-size hens should have a clear opening of about 10 to 12 inches wide and 12 to 13 inches tall; door makers land in that range (Coop Tender’s standard door opens 10 x 10 inches, Brinsea’s Space-Saving kit up to 11 x 13 inches), while bantams fit through 8 x 8 inches and Brahmas, Jersey Giants and Cochins need 12 x 12 inches or more. The best design for most coops is a vertical sliding door that locks shut, because a panel that just rests in its track can be pushed up and raccoons open single-motion latches. A manual kit such as the Brinsea ChickSafe Space-Saving Door Kit ($49.99 at My Pet Chicken) or the G.Q.F. Starter Coop Door Kit ($44.99) covers the door itself. If nobody is reliably home at dusk, add an automatic opener: in a USDA survey of urban flocks, predators caused 44.0% of chicken deaths.

A coop’s walls and wire can be perfect and the flock still lost through the one opening that is used twice a day. This guide covers the chicken-size pop door: how big to cut it, which door style holds up against raccoons, what the ready-made manual kits cost, and when it is worth automating. We compared door makers’ published opening sizes and specs, priced the kits on their makers’ and retailers’ stores on November 6, 2026, and pulled the predator figures from USDA surveys. We did not install or test these doors ourselves; every spec below is credited to the company or study that published it.

Chicken coop doors by the numbers

• Predators were the largest single cause of death in urban flocks. In USDA’s NAHMS Poultry 2010 study of chicken keepers in Denver, Los Angeles, Miami and New York, predators accounted for 44.0% of chicken deaths, ahead of illness (16.5%) and old age (13.1%).
• Most backyard flocks were reachable. In USDA’s earlier national Poultry ‘04 study, predators such as raccoons or foxes could get into bird areas in 62.5% of backyard flocks.
• A wider door does not mean more outdoor time. In a study at the University of Hohenheim (Harlander-Matauschek et al., British Poultry Science, 2006), pop holes were varied from 30 to 150 cm wide (about 12 to 59 inches) in compartments of 256 hens, and width had no significant effect on how many hens went outside. For a backyard coop, that means sizing the door to your biggest bird rather than going wide is enough.
• Raccoon paws are built for latches. Raccoon forepaws carry roughly 200,000 nerve endings per square inch, according to the Institute for Environmental Research and Education, which is why a single-motion latch is not a predator-proof latch.
• Giant breeds need a bigger door. Brahma hens weigh about 9.5 lb and roosters about 12 lb under the American Poultry Association standard, and Coop Tender points owners of Brahmas, Jersey Giants and Cochins from its 10 x 10 inch door to its 12 x 12 inch one.

What size should a chicken coop door be?

Size the pop door to the largest bird in the flock, not the average one. The table below combines the opening sizes door makers sell with the breed guidance they publish.

Sources: Coop Tender, Brinsea, Incubator Warehouse/G.Q.F. and Run-Chicken product specs, November 2026.

Three placement rules matter as much as the size:

• Raise the sill above the bedding. Keepers commonly put the bottom of the opening 6 to 12 inches above the coop floor so litter doesn’t spill into the track or jam a sliding panel. In a deep-litter coop, use the higher end; bedding builds up over winter.
• Add a ramp when the door is high. Once a pop door sits more than about 18 to 24 inches above the ground, hens need a ramp. Our chicken coop ramp guide covers the 30-degree angle rule and cleat spacing.
• Leave room above a vertical door. A one-piece guillotine panel needs a clear wall at least as tall as the opening above the hole, so it can slide fully clear. On a short coop wall, a two-stage door like Brinsea’s or a horizontal slider solves this.

If you’re still sizing the coop itself, our chicken coop size calculator covers floor space and roost length per bird.

The five types of chicken coop door

The vertical sliding door is the standard pop door for a reason: it needs no swing room inside a cramped coop, you can open it with a rope without walking into the run, and you can automate it later by bolting an opener above it. Its one real weakness is lift. A panel that simply rests in its track can be pushed up by a raccoon working at the bottom gap, which is why Omlet advertises that its sliding Autodoor “cannot be simply lifted up when shut,” unlike string-and-pulley doors, and why ChickenGuard sells a separate self-locking door for its cord-lift opener.

Hinged doors are fine for the big people door, but kit coops tend to ship them with the weakest latches. If your flat-pack coop has a drop-down ramp door held by a single twist latch, that latch is the first thing to upgrade.

Manual chicken coop door kits compared

A ready-made kit saves you building runners that don’t bind when the wood swells. These are the manual kits we found with published specs and a current US price. None of them include an opener, so you open and close them yourself until you decide to automate.

The Brinsea kit is the one to buy when the wall above your pop door is short. A one-piece panel for a 13 inch tall opening needs runners roughly twice that height so the panel can slide clear; Brinsea’s two-panel design gets the same opening out of 22 inch runners. The aluminum won’t swell or rot the way a plywood panel can. The kit is a door only, so for predator security add a pin or bolt at the bottom until you fit an opener.

G.Q.F. Manufacturing’s kit is the cheapest complete door we found from an established poultry-equipment maker. The 13 inch width is generous, but the 10 inch height is at the low end of the standard range, so it is a better fit for a flock of standard layers than for giant breeds. Incubator Warehouse also sells AutoCoop door rails and a composite door panel at $17.99 each if you only need to rebuild the moving parts of an existing door.

Coop Tender’s doors aren’t manual, but they belong here because they are the clearest guide to sizing: the same door is sold with an 8 x 8, 10 x 10, 12 x 12 or 15 x 15 inch opening, and Coop Tender tells owners of Brahmas, Jersey Giants and Cochins to size up from its standard 10 x 10. The worm drive is the security feature: a threaded screw holds the panel in place, so it can’t be pushed up the way a cord-hung panel can. It is the most expensive route on this page.

Manual or automatic: what each option costs

Prices from Incubator Warehouse, My Pet Chicken, Brinsea, Run-Chicken, ChickenGuard, Omlet and Coop Tender, November 2026.

A manual door costs about a third of an automatic one, and it is completely secure on any evening someone remembers to close it. The problem is the evenings nobody does. Raccoons and foxes are largely nocturnal, so a door left open an hour past dusk is open during peak hunting time. If your schedule ever puts you home after dark, the $65 to $85 difference between a manual kit and a Brinsea or Run-Chicken door is cheap insurance. We compare the openers in detail in our best automatic chicken coop door roundup, and the two most popular head to head in Run Chicken T50 vs Omlet Autodoor.

How to make a chicken coop door predator-proof

1. Stop the panel from lifting. On any sliding door, drill through both runners just above the closed panel and drop in a pin or bolt, or use a self-locking or motor-locked automatic door.
2. Use a two-motion latch on hinged doors. A spring-loaded carabiner clipped through the hasp turns a one-motion latch into a squeeze-then-pull one. Our raccoon-proof latch guide compares the options.
3. Close the gaps. Keep the gap under and beside a closed panel under half an inch, the same spec as hardware cloth, and use ½-inch hardware cloth, never chicken wire, over any window in a people door. At floor-level openings, the rat-proofing spec drops to ¼ inch.
4. Keep the tracks clear. Packed bedding and ice are what jam sliding doors, so keep the sill above the litter and check the runners after a freeze. Our winterizing checklist covers keeping doors moving in a freeze.
5. Treat the run as a second door. A secure pop door only protects the flock inside the coop. If hens can get back out into an unroofed run, the run fence and gate need the same attention; see our full predator-proofing checklist.

Building your own pop door

Building a manual guillotine door is a one-afternoon job and the cheapest option if you have scrap lumber. Cut the opening to the size in the table above, then frame both sides with runners: either strips of 1 x 2 with a routed groove, or aluminum U-channel, which won’t swell when wet. Cut the panel from exterior plywood, aluminum sheet or HDPE (cutting-board plastic), about 1 to 2 inches bigger than the opening in each direction so it overlaps the frame. Make the runners extend at least one opening-height above the hole so the panel can clear it.

For outside operation, screw an eye into the top of the panel, run a rope up through a pulley or eye screw and out through the coop wall to a cleat on the outside of the run, so you can open and close the door without walking through the run. Finish with a locking pin through the runners when the door is shut. If you’re building the whole coop, our chicken coop plans guide lists free plans that already include a pop door, and our chicken coop cost breakdown shows where a door fits into the total budget.

The bottom line

A chicken coop door for standard hens should open about 10 to 12 inches wide and 12 to 13 inches tall, sized to the biggest bird: 8 x 8 inches is enough for bantams, while Brahmas, Jersey Giants and Cochins need 12 x 12 inches or more, as Coop Tender’s sizing shows. A vertical sliding door is the best pop door for most coops, but only if something stops the panel being pushed up from below. For a manual door, the Brinsea ChickSafe Space-Saving kit ($49.99 at My Pet Chicken) is the best fit for a short wall and the G.Q.F. Starter kit ($44.99) is the cheapest complete door. Because predators caused 44.0% of urban chicken deaths in USDA’s survey, anyone who isn’t home every evening at dusk should automate it, starting with the Run-Chicken T50 at $129.90.

Sources: USDA APHIS NAHMS Poultry 2010 (urban chicken ownership) and Poultry ‘04; Harlander-Matauschek et al., British Poultry Science 47(2):131-134, 2006; Institute for Environmental Research and Education; American Poultry Association weights via our Brahma care guide; product specs and prices from cooptender.com, brinsea.com, mypetchicken.com, incubatorwarehouse.com, run-chicken.com, chickenguard.com and omlet.us, checked November 6, 2026.