Shed Security Ideas & Tips - 5 Secure Garden Storage Sheds Reviewed [UPDATED]

Metal garden storage has always had a reputation for being strong and secure, but there are certain metal sheds that, in terms of security, are a cut above the rest. In this guide, we examine shed security, along with five of the most secure sheds, all of which will give you complete peace of mind that your valuables are safe from thieves, and vandals.

Although they are not the main focus of this article, we also sell wooden garden sheds and plastic garden sheds, many of which have advanced security features as well.

Editor’s Note [22.07.24]: Our guide to the five best secure garden sheds was originally published on October 28, 2022. In this update, we have added new content throughout and have also added a new section covering shed security ideas and tips.

If you take your cycling seriously, there’s a good chance that your family’s bikes are worth thousands of pounds, so it’s simply common sense to take appropriate steps to protect them.

Expertly constructed from PVC-coated galvanised steel and supplied with an extraordinary 25-year panel guarantee, this bicycle storage shed securely holds up to 3 adult bikes.

In fact, having 2 stainless steel hasps, 2 Sold Secure Silver Approved (SSSA) high-security padlocks, an SSSA heavy-duty ground anchor and high-security steel cable with alarm, it’s fair to say that this British-built bike shed offers near-unparalleled protection for bicycles.

What’s more, not only do we think that this is an impressively secure bike shed, the police, insurance companies and the nation’s cycling press do too.

Backed by a sensational 30-year anti rust warranty, this secure garden store is brought to you by Australia’s leading manufacturer of metal sheds.

Built from high-tensile, super-strength steel with a titanium finish this tough metal shed is so strong that it will comfortably withstand 90mph cyclones, never mind a crook with a crowbar.

The unique SNAPTiTE assembly system means 75% fewer screws than a conventional metal shed, which not only makes it easier to assemble but also reduces potential weak spots that thieves could exploit to gain access.

Rounded off with a strapping pad bolt, this fortress-like metal shed is an ultra-secure garden storage unit, perfect for valuable tools.

Weighing in at 12 stone, this small metal shed packs a very big punch indeed. It simply oozes strength, solidity, and security.

Built in Great Britain from heavy-duty, rust-resistant galvanised steel and backed by a superb 10-year guarantee, this strapping metal storage unit includes rigorous security measures such as huge double doors with enhanced locking mechanisms.

The 3-point locking system encompasses a pick and drill-resistant Euro cylinder lock and internal deadbolt, ensuring that no unauthorised person can gain access.

Should you require even greater levels of security, this metal shed can easily be secured to a paved or concrete base, using the fixing bolts provided. Then, even the shed itself is going nowhere without your say-so.

Built in Great Britain, from PVC-coated galvanised steel, this metal shed is our second offering from Trimetals.

A spring-assisted, concertina-style opening provides you with storage-friendly, walk-in access to the interior, while the 2 padlock points make sure that it is completely out of bounds to most thieves (padlocks available to buy as extras).

Impervious to rust, fire retardant and backed by an extraordinary 25-year panel guarantee too, this metal shed will remain just as strong and secure as the day you bought it, for decades to come.

Endorsed by the Royal Horticultural Society, for its exemplary construction and A1 security, this metal garden shed is a supremely secure home for your most expensive tools and equipment.

If you’re a regular reader of our blog, you’ll know by now that we’re huge fans of Yardmaster.

This is because their metal sheds provide exceptional levels of strength, security and durability at unbeatably low prices. This 6x4 metal shed is a prime example, featuring robust construction that makes it nearly impossible for intruders to gain access.

Constructed from hot-dipped-galvanised steel, with 7 unique layers of protection and impressive security measures, this garden storage shed comes with a 15-year anti-rust guarantee and is built to last.

The sliding double doors not only securely overlap, but they are also fitted with both anti-tamper bolts and high-quality security locks, ensuring that your valuable stored items are completely safe from unwanted attention (padlock not included).

Other notable features include a beautiful baked-on emerald-green finish, ventilation along the ridge and eaves, rust-resistant screws and an anchor kit.

Strength – tick. Security – tick. Style – tick. Value for money – tick. The last but by no means the least of our 5 best secure garden sheds.

Although we are confident that the 5 sheds above have the most secure shed features, it seems only right to list a few extra shed security ideas and tips to consider, especially for those of you with wooden or plastic sheds: 

1. Apply window security film- strengthen shed windows by adding a security film layer, this makes the glass much harder to break

2. Cover windows - on sheds with windows, use curtains or blinds over windows to hide shed contents from view
3. Firm shed anchoring - secure your shed as firmly as possible to prevent the entire structure from being lifted
4. High-quality locking systems - naturally you need top-quality locking systems, which all our best 5 list of secure sheds have
5. Install a shed alarm and security camera - naturally, a security camera will deter would-be thieves from attempted break-ins
6. Install a shed security bar - this is a heavy-duty metal bar that is installed across the door of a shed or storage unit to prevent unauthorised access
7. Install motion-detector solar-powered security lights - this security light illuminates the shed area with lighting, deterring thieves and potentially local cats!
8. Regular maintenance checks - periodically inspect security features such as locks, hinges, etc. for signs of tampering, "wear and tear" or weather damage and make any required changes immediately
9. Use reinforced shed door hinges - upgrade to heavy-duty, tamper-proof hinges to strengthen the shed's entry points against forced entry
10. Windowless design security for sheds – a shed which is windowless although maybe not as aesthetically pleasing is generally more secure as shed contents cannot be viewed

This five best secure garden sheds guide provides a review covering world-leading manufacturers, each of which has been selected for its superior shed security features.

The five best secure garden sheds in our list, which you can read detailed reviews of above are:

Advanced security for sheds is available including police-endorsed security sheds, which are endorsed by insurance companies. Some are also discussed in the cycling press and are endorsed by the Royal Horticultural Society. All 5 of these most secure garden shed designs are supplied with long-term guarantees, indicating high-quality materials and construction.

Shed security ideas and features include fire resistance, rust-proofing and advanced locking systems, which showcase their suitability for securely storing valuable items. The sheds cater to various storage needs from general garden tools to specific uses like bike storage, each with unique features to enhance security and usability in different settings.

Main image: 3'6 x 7'4 Asgard Sentry Slimline Metal Shed (1.06m x 2.23m)