Keyed Alike Padlocks Explained: Benefits, Uses and Security Ratings
Keyed alike padlocks let you open every lock in a set with a single key, so you're not stood at a gate juggling five different keys while your shopping bags cut into your fingers.
Below, we dive into everything you need to know about padlocks that share one key, including how they compare with standard padlocks and when you should choose them.
Contents
- What does keyed alike actually mean?
- Keyed alike vs standard padlocks: how do they compare?
- Why choose keyed alike padlocks over standard locks?
- Comparing security ratings across keyed alike systems
- Simple padlocks that share one key: what we'd recommend
- How to order keyed alike padlocks
- Keyed alike or master keyed: which one do you actually need?
What does keyed alike actually mean?
Keyed alike simply means one key that opens several padlocks.
A few things worth knowing about how that works in practice:
- It doesn't change the padlock's security rating. A keyed alike padlock carries the same CEN grade as the same model sold on its own key.
- It's different from a combination padlock, which uses a shared dial code rather than a shared physical key. If you'd rather not worry about a key at all, that's the simpler route. If you want the reassurance of a key that can't be forgotten under pressure, keyed alike is the one to go for.
Keyed alike vs standard padlocks: how do they compare?
A standard, or "keyed different", padlock is cut to its own unique pattern and won't open any other lock. A keyed alike padlock trades that isolation for convenience. Here's how the main key profiles stack up against each other:
| System | How access works | Best suited to |
|---|---|---|
| Standard (keyed different) | Every padlock has its own unique key | A single door or locker where no sharing is needed |
| Keyed alike | One key opens every padlock in the set | Schools and households with several sheds or gates |
| Master keyed | Each lock has its own key, plus one master that opens them all | Sites where staff need their own key but a manager needs override access or a container self storage site |
| Restricted key | A protected key profile that can't be copied without authorisation | High value sites where controlling who holds a key matters most |
System
Standard (keyed different)
How access works
Every padlock has its own unique key
Best suited to
A single door or locker where no sharing is needed
System
How access works
One key opens every padlock in the set
Best suited to
Schools and households with several sheds or gates
System
How access works
Each lock has its own key, plus one master that opens them all
Best suited to
Sites where staff need their own key but a manager needs override access or a container self storage site
System
How access works
A protected key profile that can't be copied without authorisation
Best suited to
High value sites where controlling who holds a key matters most
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Most sites don't stick to just one of these.
It's common to keyed alike the low-risk areas for convenience and reserve master keyed or restricted profiles for whatever actually needs tighter control.
Why choose keyed alike padlocks over standard locks?
The honest answer is convenience, and convenience matters more than people expect once you're managing more than one or two locks.
- Fewer keys to carry. Four padlocks on four separate keys means four chances to lose one at the worst possible moment. Single key is much more convenient
- Cheaper key replacement. Lose a standard key and you might need a locksmith out to the property. Lose a keyed alike key and you order a replacement cut to the same pattern.
- Simpler handovers. Landlords and facilities managers running sites with staff turnover know the headache of chasing down old keys. One key per person instead of one key per lock cuts that admin down considerably.
- Consistent security across the set. Every padlock carries the same CEN grade, so you're not left guessing which gate or locker is the weak point.
Comparing security ratings across keyed alike systems
There are two ratings matter most in the UK market:
| Rating system | What it measures | Typical range |
|---|---|---|
| CEN grade | Overall resistance to attack, tested against a European standard | 1 to 6, with 5 and 6 reserved for high security use |
| Sold Secure | Independent UK testing focused on real-world attack methods | Bronze, Silver, Gold and Diamond for cycle-specific ratings |
Rating system
CEN grade
What it measures
Overall resistance to attack, tested against a European standard
Typical range
1 to 6, with 5 and 6 reserved for high security use
Rating system
Sold Secure
What it measures
Independent UK testing focused on real-world attack methods
Typical range
Bronze, Silver, Gold and Diamond for cycle-specific ratings
Neither system is better than the other, they just measure things differently, so it's worth knowing what each one actually looks at before you compare two padlocks side by side.
CEN grade
CEN grades run from 1 to 6 and are tested against a shared European standard for resistance to attack. Grade 1 to 2 padlocks suit low-risk items like lockers, while grade 5 and 6 are the ones insurers usually ask for on containers and anything else holding real value.Sold Secure rating
Sold Secure runs its own independent UK testing, judged against real-world attack methods rather than a single European standard. Ratings climb from Bronze through Silver and Gold up to Diamond, the top tier reserved for padlocks tested against powered cycle attacks.A CEN grade 6 padlock keyed alike across a compound of shipping containers gives you the same resistance to bolt cutters and drills as a single grade 6 lock would on its own. Nothing about sharing a key profile softens that rating, and a grade 5 padlock cut into a keyed alike set is exactly as tough as the same padlock sold on its own key. What changes is risk management, since one compromised key affects the whole set rather than a single point of entry. If you're insuring high value goods, check what grade your policy actually requires before you buy, because insurers are often specific about this and a lock one grade below their minimum can void a claim.
The scale of the problem is worth knowing too. Government figures from the Office for National Statistics class sheds and other outbuildings within the same burglary definitions as the home itself, which is exactly why insurers pay such close attention to the standard of lock fitted before honouring a claim.
Simple padlocks that share one key: what we'd recommend
If you just need something reliable for lockers or a garden gate, you don't need to overthink this. A handful of options cover most situations well.
| Padlock | Price (keyed alike) | Best for | Key feature |
|---|---|---|---|
| Squire WS75 Container Padlock | £47.50 | Containers and higher value storage | Hardened boron alloy shackle with a strong CEN rating |
| Abus 65/40 Brass Padlock | £8.81 | Lockers and lighter duty jobs | Cheap enough to buy in bulk, weatherproof enough for outside |
| Abus 83WP/53 Weatherproof Padlock | £38.52 | Gates and outbuildings exposed to weather | Cover over the keyway to keep out rain and grit |
| Squire SS50S Stronghold Padlock | £43.82 | Serious protection against bolt cutters | 10mm hardened boron steel shackle |
Padlock
Price (keyed alike)
£47.50
Best for
Containers and higher value storage
Key feature
Hardened boron alloy shackle with a strong CEN rating
Padlock
Price (keyed alike)
£8.81
Best for
Lockers and lighter duty jobs
Key feature
Cheap enough to buy in bulk, weatherproof enough for outside
Price (keyed alike)
£38.52
Best for
Gates and outbuildings exposed to weather
Key feature
Cover over the keyway to keep out rain and grit
Padlock
Price (keyed alike)
£43.82
Best for
Serious protection against bolt cutters
Key feature
10mm hardened boron steel shackle
Keyed alike or master keyed: which one do you actually need?
It comes down to who needs access and how much control you want over it. Keyed alike gives everyone the same key with no hierarchy. Master keyed gives each person or area their own individual key, while you hold a master that opens the lot. A school might keyed alike its bike shed padlocks so any member of staff can get bikes out, but master key its stock cupboards so each department head has their own key and the site manager can still get into all of them if needed.How to order keyed alike padlocks
Getting a set matched to one key is straightforward when you shop at Locks Direct:
- Pick the padlock model and CEN grade that suits what you're securing.
- Select the "keyed alike" option on the product page and enter how many units you need.
- Add the set to your basket, or contact us directly for larger bulk orders.
- Receive your padlocks all cut to the same key, ready to fit straight away.
If you're weighing up a full site security plan rather than just one set of padlocks, our team can talk through the options on 0800 542 1264, or you can browse the full keyed alike padlocks range to see what's in stock.
