Sliding patio door security
Updated: 21 October 2026
You searched for a sliding door because the garden door feels easy to lift, and a rail near £30 is sitting in the same results. Sliding patio door security is a lock, an anti-lift device and, on a new dwelling, a tested doorset. The eight kits on the [sliding door comparison](/hub/door-and-window-security/sliding-door) are interior barn rails for a timber leaf. They do not lock a patio, and none of them is the product to add to this basket. Peter F. read the Metropolitan Police, Secured by Design, West Yorkshire Police and Approved Document Q against those listings on 19 October 2026. There was no doorset test. A qualifying purchase through an amazon.co.uk link can earn a commission at no extra cost to you, which is why this page says when not to use that link.
You searched for a sliding door because the garden door feels easy to lift, and a rail near £30 is sitting in the same results.
You searched for a sliding door because the garden door feels easy to lift, and a rail near £30 is sitting in the same results. Sliding patio door security is a lock, an anti-lift device and, on a new dwelling, a tested doorset. The eight kits on the sliding door comparison are interior barn rails for a timber leaf. They do not lock a patio, and none of them is the product to add to this basket. Peter F. read the Metropolitan Police, Secured by Design, West Yorkshire Police and Approved Document Q against those listings on 19 October 2026. There was no doorset test. A qualifying purchase through an amazon.co.uk link can earn a commission at no extra cost to you, which is why this page says when not to use that link.
Our top picks
| Badge | Product | Door width | Stated load | PAS 24 | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  WINSOON WINSOON 183 cm big-wheel kit | Under 92 cm | 105 kg | Not stated | 9.4 | about £39.99 | View offer |
| Best value |  WOLFBIRD WOLFBIRD 183 cm black kit | 91.5 cm | n/a | Not stated | 9.2 | about £28.99 | View offer |
 TSMST TSMST 183 cm track kit | 92 cm | 150 kg | Not stated | 9.0 | about £29.99 | View offer |
On this page
Two products share the name
A barn kit is a rail, hangers and stops that let an internal door slide along a wall. A patio doorset is a glazed panel in its own frame, with a lock in the meeting stile and runners that someone may try to lift the panel out of. The shared words are sliding and door. The objects are not interchangeable. An anti-jump block on a barn hanger stops an internal leaf hopping off a wardrobe rail. It is not the anti-lift device in the head of a patio frame.
That is why the comparison exists and why this page refuses it. The kits run from about £28.99 to about £59.99, they omit the door, and they print no PAS 24 line, no lock and no cylinder. If you still need a rail for a bathroom or a pantry, the order of checks is the sliding barn door kit buying guide. If you are standing at the garden door, stay on this page.
The same split applies to a fire door that also happens to slide in your head. A fire rating belongs to a tested doorset. Hanging a labelled fire door on a barn track drops that certificate. This page does not become a fire-door guide. It only marks the stop: if the opening is a certified fire door or an escape route with a rated door, a carpenter who hangs fire doors is the next call, not a track kit.
The door you already have
On an existing patio door, the Metropolitan Police and Secured by Design both tell you to check an anti-lift device so the panel cannot be lifted out of the frame. You are looking at the head of the frame you already own. If the panel still lifts, a locksmith in the Master Locksmiths Association is the route those pages point to. This comparison has no cylinder and no patio anti-lift block, so it will not name one.
The cylinder is the second check. Secured by Design says that if the euro cylinder sticks out past the handle, you want a shorter security-rated cylinder, fitted so it does not protrude. The police note is the same idea: a cylinder that stands proud is easier to attack. This page does not describe that attack, and it does not pick a cylinder, because there is not one in this set. An MLA locksmith measures the one in your door.
The third check is free. Lift the handle, turn the key, and take the key out. A door left on the latch is not using the lock you already have. West Yorkshire Police also ask for the sliding section on the inside, where the frame allows it, and for anti-lift blocks. A timber batten in the top track is their householder suggestion so the panel has less room to rise. That batten is not a PAS 24 test.
New dwellings and PAS 24
Approved Document Q (2015) is narrower than a general security wish. Requirement Q1 applies to new dwellings. Easily accessible doorsets, including doors into the home, should be secure doorsets. The 2015 PDF names PAS 24:2012. This page does not treat that document as rewritten. The current BSI specification in the sources is PAS 24:2022+A1:2024, and its scope includes sliding doorsets as complete units. Secured by Design Homes 2023 asks for PAS 24:2022 on those doorsets. When you are specifying a new sliding doorset, ask for the edition the building-control conversation and the police-preferred scheme actually require, and expect the 2015 approved document to cite the 2012 name until you are shown an update.
Q1 does not upgrade the cottage or the flat you already live in. An existing house is the police checklist above: anti-lift, a cylinder that does not stick out, and the handle lifted and locked. A new extension or a new dwelling that must meet Q1 is a doorset specification, agreed with the designer and building control, not a hardware kit chosen from a barn-door table.
PAS 24 is a test of the whole doorset. It is not a sticker you can add to a rail. BS EN 1527 is the hardware standard for sliding and folding door gear, and it is not printed on these eight listings either. Quoting either number next to a track near £30 would invent a certificate the product page does not have.
What this comparison will not sell you
None of the eight kept ASINs is a secure doorset. WINSOON’s long review file, the about £28.99 WOLFBIRD’s parts list, and the about £59.99 T-style kit are arguments about hanging an internal timber door. They are set out on the best sliding barn door kit page for that job only. A review that called an oak barn door secure was talking about that internal leaf. It is not evidence that the rail resists a casual attempt on a patio.
Do not fit one of these rails across a patio track, and do not treat the anti-jump pads in a barn box as the anti-lift device the police describe. The fitting steps for a barn rail assume an internal wall. Products that meet a police-preferred specification are searched on the Secured by Design site, or specified with a joiner, not on an Amazon shelf of wardrobe gear.
If the door you have already has anti-lift, a flush security-rated cylinder and a multipoint lock you actually throw, you may not need to buy anything from this hub. If it does not, the next spend is that doorset or that locksmith, and the barn-kit prices are a distraction.
Common questions
Can a barn-door kit secure my patio?
No. The kits in this comparison are interior rails for a timber leaf. They have no patio lock, no anti-lift device for a glazed panel, and no PAS 24 line. Adding one to the basket does not change the garden door you are worried about. They run from about £28.99 to about £59.99 and they omit the door.
What is an anti-lift device?
It is the fitting in the patio frame that stops the sliding panel being lifted out of the runners. The Metropolitan Police and Secured by Design both tell you to check it. An anti-jump block sold for a barn hanger is a different part, for a different door. If the panel still lifts, an MLA locksmith is the route those pages point to.
Does Approved Document Q apply to my existing house?
Requirement Q1 is for new dwellings, and it covers easily accessible doorsets into the home. It does not, on the 2015 document, upgrade a house you already live in. An existing patio is the police checklist: anti-lift, a cylinder that does not stick out, and locking the handle. A new dwelling that must meet Q1 is a doorset specification.
Which PAS 24 edition should I ask for on a new doorset?
The 2015 Approved Document Q PDF names PAS 24:2012. The current BSI specification cited here is PAS 24:2022+A1:2024, and Secured by Design Homes 2023 asks for PAS 24:2022 on sliding doorsets. Ask for the edition your specification and scheme require, on the whole doorset. PAS 24 is not a sticker for a barn rail.
What if the euro cylinder sticks out?
Secured by Design says to fit a shorter security-rated cylinder so it does not stand proud of the handle. An MLA locksmith measures the door you have. This comparison has no cylinder to recommend, and a barn-rail listing is not a substitute. A cylinder that stands proud is the one the police note treats as easier to attack.
Is a timber batten in the track the same as a tested door?
No. West Yorkshire Police mention a batten in the top track as a householder step on an existing patio, so the panel has less room to rise. It is not a PAS 24 test and not a substitute for anti-lift hardware in the frame. The batten does not turn a barn rail into a doorset.
Do I still need to lift the handle and turn the key?
Yes, on a multipoint patio door. Lift the handle, turn the key, and take the key with you. Leaving the key in the lock, or leaving the door only on the latch, skips the mechanism already fitted to that frame. That check costs nothing and uses the lock you already have.
Related pages
Sources
Public UK sources for door hardware and security rules, plus the amazon.co.uk listings in this set. Last checked 21 October 2026.
- GOV.UK, Approved Document Q (2015) (retrieved 21 October 2026)
- BSI, PAS 24:2022+A1:2024 (retrieved 21 October 2026)
- NBS, BS EN 1527:2019+A1:2021 (retrieved 21 October 2026)
- Metropolitan Police, door security advice (retrieved 21 October 2026)
- Häfele UK, sliding barn door kits (retrieved 21 October 2026)
- Runners UK, how to choose sliding door gear (retrieved 21 October 2026)
- The Sandwich Handyman, fit a sliding barn door (retrieved 21 October 2026)
- TRADA, fire doors (retrieved 21 October 2026)