We Compared 6 Coop Latches on the Second Securing Action

Why the BullDog Gravity Latch wins this category

Because it is the only latch here that does both jobs. It closes itself when the door swings shut, and it has a hole for a padlock.

Those two things solve different problems. The self-latching part deals with the human failure, the evening someone pushed the door to and walked off. The padlock hole deals with the animal, because a gravity lever on its own is a single action and a raccoon can lift it. Add a padlock or a spring clip and it becomes two actions, which is the line this whole guide is drawn on.

The price does the rest. $9.81 buys two sets, so the coop door and the run gate both get the same hardware rather than one good latch and one leftover hook.

Living with the BullDog Gravity Latch

It mounts left or right hand and works on an inward or outward swing, so you do not have to think about handing before you order. The 4.25 in latch pin is long enough to cross a normal gate gap, and steel with a rust resistant black finish is the right material outdoors.

What most people end up doing is skipping the padlock. A padlock body freezes shut in January and the key is impossible to find in the dark, so a spring carabiner through the same hole becomes the daily lock. That still needs a squeeze and a slide at the same time, which is beyond a paw, and it works with gloves on.

Where the BullDog Gravity Latch falls short

The mechanism is honest about itself once you look at it. Gravity levers are on the short list of things raccoons are filmed opening. Unlocked, this latch holds a door against wind and against a hen leaning on it, and that is all. We would not leave it unclipped on any door a predator can reach.

The other problem is the screws. They are short self-drilling screws intended for a fence post, and a coop panel is often half inch plywood or thinner. Screws in thin ply pull straight through under a steady pull. Fit a scrap block of wood behind the latch on the inside face, or run bolts right through with washers, and the weak point moves back to the steel where it belongs.

BullDog's listing also says gravity locking prevents predators getting into your garden. There is no predator test data behind that, so treat it as copy rather than a claim you can rely on.

Why the BTEOBFY T-Handle Lock earns its place

Because on a walk-in coop you want a door, not a gate. A T-handle you turn and lock reads as a door to anyone using it, and the lock is in the handle rather than dangling off a hasp.

It also satisfies the test this guide runs on everything: a raccoon cannot finish a keyed bolt. The key is the second action, and it is built in rather than bought separately. That is a different trade from the BullDog, which asks you to buy a padlock but gives you a hole you can clip anything through.

$15.99 gets a T-handle, a D-handle, five keys, screws and a wrench, which is most of an afternoon's shopping in one box.

Living with the BTEOBFY T-Handle Lock

The 5.5 in stem fits a door up to 4.5 in thick, which covers a framed shed door and most timber walk-in coops. Five keys is a genuinely useful number, because one lives on your keyring, one hangs by the back door and one goes to whoever feeds the flock when you are away.

The install is the part to slow down on. This passes through the door, not onto the face of it, so mark the height, check the handle clears the frame at both open and closed positions, and only then drill. The listing links an install video, which is worth watching once before you start.

Where the BTEOBFY T-Handle Lock falls short

The keys cut both ways. On a wet evening with a torch in your teeth, finding and turning a small key is slower than clipping a carabiner, and there is no padlock hole here to clip to. If the keys go missing you are drilling the lock out.

It also does not close itself. The BullDog drops its lever the moment the door swings to, and this does not. Somebody has to turn the handle every night, which is the exact habit that fails on a cold evening.

Then there are the claims. BTEOBFY says the kit withstands hurricanes, blizzards and 50 mph winds, and that the 12 mm bolt resists crowbars. No test standard is cited for any of it, so we are recording those claims rather than passing them on. Buy this for the keyed mechanism and the fit on a thick door, not for the weather numbers.

Why the YONSIN Slide Bolt makes the list

Because of one field on the listing: padlock hole. Take that away and this is exactly the latch we would tell you not to buy for a coop.

A plain sliding bolt is a single action. Raccoons slide bolts, with hands that work much like ours. With a padlock hole the same bolt becomes two actions, and two actions is where a paw runs out of options.

At $7.19 it is a straightforward upgrade for a run gate still running on a hook and eye, and the two-way body means you do not have to work out handing before you order.

Living with the YONSIN Slide Bolt

It is a straightforward surface fit with nothing to drill through the gate. Screws and instructions come in the box, the 1.5 in screws are long enough to reach real frame timber rather than just skin the panel, and the maker lists it for wood, metal and vinyl, so it suits a run built from whatever was in the shed.

The black powder coat over steel is the right finish for something that lives in the weather and gets touched with wet hands twice a day.

Day to day it works like every bolt you have used. Slide, clip, done. Because it is a gate you walk through often, the clip matters more than the padlock: a spring carabiner through the hole opens with cold fingers, and a frozen padlock does not.

Where the YONSIN Slide Bolt falls short

Two blanks on the listing, and both are the kind you notice at fitting time. No bolt length or throw is stated, so if your gate has a wide gap or the post has moved with the seasons, you cannot check the bolt will reach until it arrives. And pack quantity is not stated, so treat $7.19 as the price of one latch until proven otherwise rather than assuming a pair like the BullDog and the FATLODA.

The mechanism has one more gap. It does not close itself. The BullDog drops its lever as the door swings, and this stays open until somebody slides it. A gate resting against its post looks shut from ten feet away, which is exactly how a run gets left open on a dark evening.

Why the Keystone 2-Sided Latch is here at all

For one capability nothing else on this page has. It locks and unlocks by key from either side of the gate. If your run gate is the only way in and the coop is behind it, that means you are not walking the long way round with a bucket in each hand.

It also self-latches, so the gate secures itself as it swings shut, and the keyed alike option means one key can run the run gate, the garden gate and anything else on the same system. On a property with several gates that is genuinely useful.

Judged on the test this guide uses, the key is a proper second action. A raccoon cannot turn a key.

Living with the Keystone 2-Sided Latch

At 2.3 pounds it is the heaviest of the three latches here that state a weight, in black zinc diecast with a UV resistant finish, and the spec sheet reads as gate hardware rather than coop hardware. The included plastic marking template is the sort of small thing that decides whether a two-sided latch lines up first time.

The install is unforgiving though, and the numbers are the reason. It wants square frames and posts, a gate gap between 1/2 in and 1-3/4 in, and a frame up to 5 in. Round posts are out. A door that has dropped or twisted is out. Measure the gap at the top, middle and bottom of the gate before you order, because one wide spot is enough to stop it working.

Where the Keystone 2-Sided Latch falls short

Price is the obvious one, and the scale of it matters. At $64.79 this costs more than the other five latches here added together, which total $41.96. For most backyard coops the $9.81 BullDog covers the important job for a fraction of that: it self-latches too, it takes any padlock, and you get two sets.

The second problem is the missing padlock hole. Keys are a fine second action until the barrel takes on water and freezes, and with no hole there is no fallback and nothing to clip a carabiner to. A padlock hole is a cheap thing to include and its absence at this price is odd.

Last, the listing states over 1 million cycles and no rust or corrosion, with no test standard cited for either. Both are plausible for diecast on a gate. Neither is a measurement, so buy this for the two-sided key access, which is real and specific, and not for those numbers.

Where the CRABSNAIL Flip Latch belongs

On a lid, not on a door. That is the honest answer, and it is why it has this award rather than a higher position.

The listing states no padlock provision, which by the rule this guide runs on makes it a one action fastener for good. One action is what a raccoon completes. So this is hardware for the nest box lid, the clean-out hatch and the feed bin door, all places that sit inside the run or under the roof line and are not what a predator works at night.

For those jobs it is well shaped. The 180 degree rotating design means one hand does the whole thing, which matters when the other hand is holding eggs.

Living with the CRABSNAIL Flip Latch

Stainless steel with a matte black finish is the right material for a nest box, where damp bedding and dropped feed will rust a plain steel latch out inside a season. At a listed 0.1 in thick it sits almost flush, so nothing catches on a sleeve or a lid seal.

Fitting is two parts and four screws, all going into the face of the lid rather than through it. At $3.98 it carries the lowest sticker price in this guide, though the FATLODA two pack works out cheaper per latch at about $2.50. Either way it is cheap enough that you can put one on every hatch on the coop and stop hunting for the bit of wire you were using instead.

Where the CRABSNAIL Flip Latch falls short

The size figures do not agree with each other. The listing calls it a 4 in barn door latch and then gives dimensions of 2.8 by 0.8 by 0.1 in. Those are not the same latch, and there is no way from the page to know which number to hold your tape against, so measure your lid generously and expect the smaller one.

Thickness is the other worry. A listed 0.1 in of stock is fine against a lid that only has to stay shut in wind. It is not much metal if something gets leverage under the edge of the lid and pulls. Do not read the stainless construction as strength.

And pack quantity is not stated, so assume $3.98 buys one latch until the box says otherwise.

What the FATLODA Barrel Bolt is for

Two latches for $4.99 is the whole argument. That is about $2.50 a latch, which means the nest box lid and the clean-out hatch both get proper hardware in one order instead of one getting a latch and the other getting a loop of wire.

Where it does not belong is the pop door. The listing states no padlock provision, and a barrel bolt is a single action a raccoon can slide across. That is not a defect in the product, it is the job it was built for. Fasten hatches with it and put a locking latch on the door a predator can reach.

Living with the FATLODA Barrel Bolt

Stainless steel with a brushed nickel electroplated finish is a sensible spec for a nest box, where damp bedding and spilled feed take plain steel apart quickly. The 3 in bolt is long enough to cross a normal hatch gap, and the action is the kind you can work with gloves on when it is 20 degrees out.

It mounts vertical or horizontal, so a single two pack can do a top opening lid and a side opening hatch. The listed 5.6 by 3.9 by 0.5 in footprint is a chunkier plate than the flat CRABSNAIL, so check it clears any hinge or lid lip before you mark the screws.

Where the FATLODA Barrel Bolt falls short

The install has a catch that is easy to miss. If you mount it pointing downward, the bolt has to drop into something, which means drilling a hole in the coop floor. That is a fine solution and it is also a job nobody plans for when they are fitting a $4.99 latch on a Sunday. Mount it horizontally into a keeper on the frame if you would rather not put a hole in your floor.

The unstated throw is the other thing to plan around. The listing gives a 3 in bolt and never says how much of that actually travels into the keeper, so you cannot tell how much margin you have when a timber lid swells in a wet week and shifts the keeper out of line. Fit it with the keeper centred and leave a little clearance rather than a tight fit.

And it does not close itself. A hatch resting shut looks the same as a hatch bolted shut, so this needs a habit behind it.