How to fit a padlock on a shed
Updated: October 2026
You have a keyed-alike padlock in one hand and a hasp still in the packet, and the shed door is a sheet of cladding on a light frame. How to fit a padlock on a shed is mostly about that frame. The lock is only as strong as the screws and the timber. Lock on Door say plainly that a determined attacker can still get into a wooden shed. This is about removing the easy pry, not about making a strongroom. The packs themselves are on the [padlocks keyed alike comparison](/hub/door-and-window-security/padlocks-keyed-alike). A qualifying purchase can earn a commission at no extra cost to you.
You have a keyed-alike padlock in one hand and a hasp still in the packet, and the shed door is a sheet of cladding on a light frame. How to fit a padlock on a shed is mostly about that frame.
You have a keyed-alike padlock in one hand and a hasp still in the packet, and the shed door is a sheet of cladding on a light frame. How to fit a padlock on a shed is mostly about that frame. The lock is only as strong as the screws and the timber. Lock on Door say plainly that a determined attacker can still get into a wooden shed. This is about removing the easy pry, not about making a strongroom. The packs themselves are on the padlocks keyed alike comparison. A qualifying purchase can earn a commission at no extra cost to you.
Our top picks
| Badge | Product | Shackle clearance | Locks in the carton | Body | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  ABUS ABUS 64TI/40 4-pack | 6.5 mm, 23 mm clear height | 4 locks, 5 keys | Aluminium, 40 mm | 9.4 | about £31.01 | View offer |
 KAWAHA KAWAHA 41/50 stainless pair | Shrouded, 50 mm body | 2 locks, 6 keys | Stainless and brass both listed | 9.0 | about £27.99 | View offer | |
| Best value |  SEPOX SEPOX long-shackle 4-pack | Long, title says 58 mm | 4 locks, same key | Laminated alloy steel | 8.8 | about £18.96 | View offer |
On this page
Put the hasp on solid timber
The usual failure is not the padlock. It is a hasp screwed into the thin panel, so a pry bar lifts the whole plate and the lock comes with it. Put the staple on the door stile, the solid upright at the closing edge, and put the hasp leaf on the matching stile of the frame. If the door is a single skin of cladding with no stile behind it, you do not have a fixing yet. You have a place that will split.
Hold the hasp closed and look at the gap under the plate. A proud hasp, standing off the timber on a curve, gives a bar a place to start. The leaf should lie flat. Mark the holes with the staple and the hasp in the position they will live in, including the padlock hanging in the staple, so you do not drill a neat row and then find the bow will not close. ProtectUK's home-security note wants two hasps on a wooden shed door, one high and one low, with closed-shackle padlocks. You can use an open-shackle lock if that is what fits, but the timber rule does not change. If the stile is soft, green, or already splintered around old screw holes, stop. A new hasp in rotten timber is a decoration.
Coach bolts, not the screws in the packet
The screws in a hasp packet are often short woodscrews. From the outside they are also a target: a thief undoes them and takes the hasp, lock and all. Coach bolts go through the stile. The head is on the outside, smooth and domed, and the nut is on the inside where a screwdriver on the path cannot reach it. The Carpenter's Daughter's shed-lock sequence uses M6 coach bolts, with the nuts inside, and then cuts and files the ends so the sharp leftover thread is not waiting for a hand. Do not test a burr with a finger. A washer under the nut stops the nut pulling into soft timber.
Drill straight through, at the diameter the bolt needs, and keep the drill square so the hasp does not sit cocked. Tighten until the leaf is flat, not until the timber cups. If the door is too thin for a bolt to bite, Lock on Door's approach is a backing plate on the inside so the nuts have metal to pull against, not a skim of plywood. A hasp is not given a CEN padlock grade. Collections Trust's padlock note makes that distinction: the fitting wants hardened steel, concealed bolts and a hardened hinge pin, and those are separate from the grade of the lock. Bolting one side and leaving the hinges on two short screws moves the attack by thirty centimetres.
Two locking points and the hinge edge
One hasp at waist height is what most shed doors get, and it is also a hinge for a thief. Lift the bottom corner and the door pivots on that single staple. ProtectUK's pattern is a hasp high and a hasp low, so the door cannot swing on one point. On a tall door, that is one near the top rail and one near the bottom rail, both into solid timber, not into the diagonal brace if the brace is only nailed to cladding.
External hinges need the same logic. Security screws, or bolts whose nuts are inside, stop someone undoing the hinge and lifting the door off the lock. If the hinge pin can be punched out, a lock on the other edge does not matter. Anti-lift hinges matter even more on a side gate, which is a different door. For the shed, look at the pin and ask whether it can be driven upwards with the door shut. Close the hasp, offer the padlock up, and see whether the shackle fills the staple without a gap you could lever, and without forcing the bow. Forcing a shackle that is a millimetre too thick bends the staple or chips the lock. If it does not pass freely, change the hasp or change the lock. Do not file the staple into a slot. What to check on the listing before you drill is on the keyed alike padlock buying guide.
Hang the padlock and try every key
With a keyed-alike pack, the last step is the one the ordinary how-to skips. Try every key in every lock before you close the door on the spares. A four-pack that is really two pairs will lock you out of your own shed if you have hung the odd one and left its key in the kitchen drawer. Lock and unlock each body, tag the keys that work, and put the spares in the house. A spare on a nail inside the shed is not a spare. It is the key.
Snap the lock shut and pull the hasp. The staple should not rattle enough to take a bar, and the door should not spring open when you lean on it. If you are fitting two locks, repeat the key check on both, because the whole point of the suite is that either key opens either hasp. Then walk away with the keys. Do not oil the lock with a product you have not checked against the maker's note, and do not assume the shed is now secure because the hasp looks new.
When to stop and call someone
If the stile crumbles as you tighten the nut, if the door is too thin for a through-bolt even with a plate, or if these padlocks are supposed to match an existing house cylinder, stop and get a joiner or a locksmith. Most of the packs in this comparison are not rekeyable. A locksmith can also tell you when the door itself is the problem and a hasp is the wrong answer. The top pick in the comparison is the ABUS 64TI/40 four-pack, and the best value is the SEPOX long-shackle four-pack, but neither changes a rotten stile. Peter F. checked the amazon.co.uk listings in this comparison. There is no laboratory test.
Common questions
Where on the door should the hasp go?
On the stile, the solid timber at the closing edge, not on the cladding between the rails. The staple goes on the door and the leaf on the frame, or the other way round if that is how your hasp is handed, but both pieces need timber that will hold a bolt. A hasp in the middle of a thin panel pries off.
Screws or coach bolts?
Coach bolts, with the smooth head outside and the nut inside. The screws supplied with many hasps are short and can be undone from the path. Use a washer under the nut, cut the spare thread, and file the burr. Do not check the burr with your finger.
How many hasps on a shed door?
ProtectUK's home-security guidance asks for two on a wooden shed door, high and low, so the door cannot pivot on one staple. One hasp is what most people fit. It is also the hinge a pry bar uses. Both hasps still have to land on solid timber.
What if the door is thin cladding?
A through-bolt needs something to tighten against. A backing plate on the inside spreads the load. If there is no stile and no room for a plate, the door is not ready for a security hasp. That is a joiner's job, not a longer screw.
How do I know the padlock fits the staple?
The shackle should pass through without force and close with little slack. Diameter, clear height and clear width are the three sizes, and they are not the same as the body width on the box. If the bow will not enter, change the hasp or the lock. Do not open the staple out with a file.
Where do the spare keys live?
In the house, not in the shed. Try every key in every lock in a keyed-alike pack before you put the spares away. If one body needs a different key, it is not part of the suite, whatever the title said.
Related pages
Sources
Public UK sources for padlock grades and shed security, plus the amazon.co.uk listings in this set. Last checked 21 October 2026.
- BSI, BS EN 12320:2021, padlocks and padlock fittings (retrieved 21 October 2026)
- Sold Secure approved product catalogue 2025 (retrieved 21 October 2026)
- ProtectUK, fences and gates (retrieved 21 October 2026)
- ProtectUK, home security advice (retrieved 21 October 2026)
- ABUS UK padlock catalogue (retrieved 21 October 2026)
- Locks Direct, keyed alike padlocks explained (retrieved 21 October 2026)
- The AA, sheds, granny flats and outbuildings (retrieved 21 October 2026)
- Admiral, shed insurance and keeping a shed safe (retrieved 21 October 2026)
- Security Guides, which padlock for a shed (retrieved 21 October 2026)