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Fiona Norbury, Lead locksmith··6 min read·
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Are Cheap Padlocks Any Good | The Honest Answer

A £20 padlock isn't always a waste, but put one on your tool shed and you'll regret it. Fiona Norbury breaks down when cheap is fine and when it isn't.

I had a call last month from a bloke in Bulwell. Someone had been through his back garden overnight, popped the padlock off his shed with what looked like bolt croppers, and walked away with about £1,400 worth of power tools. The padlock on the hasp? A £19.99 job from a hardware shop. Still attached to the door. They hadn't even bothered to take it.

He asked me, genuinely puzzled: 'But it said heavy duty on the box.'

It always does.

The myth: a padlock is a padlock

The widespread belief is that any locked padlock is a deterrent, so there's no real point spending more than twenty quid. You see this repeated on DIY forums, in Facebook neighbourhood groups, even occasionally in the press. The logic runs: a thief who wants in badly enough will get in regardless, so why waste money?

That logic is not entirely wrong. But it's applied to the wrong question.

The question isn't whether a determined professional can defeat an expensive padlock. They probably can, given time and tools. The question is whether the padlock you've fitted will stop the opportunist who's tried the gate, spotted the shed, and is willing to spend thirty seconds seeing if anything gives.

Most residential shed and gate break-ins in Nottingham are not professional jobs. They're opportunists. And opportunists have a very low tolerance for resistance.

What the ratings actually mean

Padlocks sold in the UK are supposed to be graded to CEN standards, from grade 1 (basically decorative) through to grade 6 (bank vault territory, roughly). Most of what you find in the £10 to £30 bracket at a hardware shop or online is grade 1 or, at best, an unverified claim of grade 2.

Grade 1 means it resisted a very modest attack for a short time in a lab. In the real world, it means bolt croppers go through the shackle in about four seconds.

Grade 3 is where things start to get meaningful. You're looking at a hardened steel shackle that makes bolt cropping noticeably harder, a body that resists hammer attacks better, and a lock mechanism that isn't trivially picked or shimmed. Expect to pay £40 to £70 for a decent grade 3.

Grade 4 and above starts getting expensive fast, and for most domestic uses in NG postcodes, it's overkill. A commercial yard, a storage container with plant equipment, a gate securing expensive vehicles. Those are grade 4 or 5 conversations.

Then there's the Sold Secure rating, which runs Diamond, Gold, and Silver. If you see a padlock with Sold Secure Diamond, that's independently tested and worth paying attention to. Gold is reasonable. Silver is entry-level. No mark at all tells you everything you need to know.

Open shackle versus closed shackle

This matters more than most people realise.

An open shackle padlock, the classic U-shape design, exposes the shackle on both sides. That's exactly where bolt croppers grip. Even a reasonably hardened shackle becomes easier to crop when the tool has room to get properly seated.

A closed shackle, sometimes called a shrouded shackle, has the body of the lock covering most of the shackle so there's almost no room to get the jaws of a cropper in. Brands like Mul-T-Lock, Abloy, and the Squire SS range make closed-shackle models that are genuinely difficult to crop. That design feature alone does more work than the CEN grade in some attack scenarios.

If you're fitting a padlock to a hasp on a shed or gate, a closed-shackle model at grade 3 or above is the combination I'd recommend every single time.

Where a cheap padlock is actually fine

I'm not saying never buy a £20 padlock. That would be daft.

There are situations where a cheap padlock does the job it's asked to do:

  • A garden gate that leads only to the front garden, with nothing worth stealing behind it. You're keeping the gate closed, not Fort Knox.
  • A luggage zip on a bag going in an overhead locker. You're deterring opportunistic rummaging, not defeating a professional.
  • A cupboard in a shared house used to store personal items from other residents you broadly trust. It's a signal, not a barrier.
  • A fence gate across an alley that's already overlooked by three neighbours and two ring cameras. The deterrence is the cameras, not the padlock.

In each of those cases, the cheap padlock is doing a social and visual job. It signals that something is closed and not freely accessible. That's worth something. Just don't let it do the work of a proper security padlock.

Where a cheap padlock is false economy

Anywhere you've got real value or real risk behind the lock.

Your garden shed is the classic one. Sheds in Sneinton, Wollaton, Beeston, across NG7 and NG9 and everywhere else, they're targeted regularly. Lawnmowers, bikes, power tools, generators. Things that are expensive to replace and easy to sell on. A £20 padlock on a hasp screwed with four short screws into softwood does essentially nothing against anyone who has tried a shed door before.

Fit a closed-shackle grade 3 padlock, minimum. Something like the Squire SS50CS or a Mul-T-Lock grade 4 closed shackle if the value warrants it. Pair it with a hasp that has concealed screws, or coach bolts through the door frame. The whole point is to make the attack take long enough and make enough noise that the risk isn't worth it.

Gates securing side access to a property are another one people underestimate. A side gate is often the route to your back garden, your back door, and your windows. Grade 2 open shackle padlock on a flimsy hasp, which I see constantly in NG2, NG3, NG6, is essentially an unlocked gate with extra steps.

Storage units and garages with vehicles or tools inside. If you're a tradesperson in Hucknall or Carlton keeping equipment in an external garage, you already know how fast a van gets broken into. The garage deserves at least as much thought.

The hasp problem nobody talks about

Here's the thing that makes me grind my teeth a little. People spend good money on a decent padlock and then fit it to a hasp with four 25mm screws into a pine door frame. The padlock doesn't fail. The hasp rips clean off the wood in about ten seconds with a crowbar.

A padlock is only as good as what it's attached to. If you're upgrading the padlock, upgrade the hasp at the same time. A closed-shackle padlock through a heavy-gauge hasp, coach-bolted through the door with a backing plate on the inside, is a genuinely serious proposition for a shed or outbuilding.

Do that for £80 to £120 all in and you've got something that will make an opportunist walk away.

That £20 padlock cost you more than you think.

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If you're not sure what you've currently got is up to the job, Fort Secure covers Nottingham and all the NG postcodes. We'll tell you straight what you need and what you don't. Average arrival under 30 minutes where possible on emergency calls, and you'll get an honest price before we start.

Fiona Norbury, Lead locksmith

Fiona has been on the tools in and around Nottingham for over two decades, and has fitted, drilled, picked and sworn at most locks ever sold in the NG postcodes. Strong opinions about nearly all of them.

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Questions people actually ask

Grade 3 minimum. A grade 3 closed-shackle padlock, like the Squire SS50CS or an equivalent from Mul-T-Lock, will resist bolt croppers and basic attack tools that opportunist thieves actually carry. Grade 1 or 2 open-shackle padlocks, which is most of what's sold under £30, offer almost no real resistance. If your shed contains power tools or equipment worth over £500, treat it like grade 4 territory.

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