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When it comes to choosing the right door for your shed or garage, steel doors are a popular option owing to their strength, durability, and appealing finish. But should you go with a single skin door or a dual skin door?
Both are great choices, and it really depends on your requirements. Most people find that a single skin door, like the Sentry Shed 650 Series, does the job perfectly. But if you’re after more security or a sturdier build, the Sentry Shed 200 Series dual skin door may be better suited.
We’ll break down the differences so you can make an informed choice.
What is a Single Skin Steel Door?
A single skin door has one layer of steel, which makes it lightweight, cost-effective, and quick to install. It’s the most common choice for sheds and garages because it looks great on any structure and provides a reliable everyday solution.
Example: The Sentry 650.37 is our most popular single skin door that combines affordability with good looks.
What is a Dual Skin Steel Door?
A dual skin door has two steel layers with a solid core in between. This design gives it extra strength and security, making it harder to force open. It’s a heavier, more premium door option for people who want additional protection for their shed, garage, or the valuable items inside.
Example: The Sentry 200.47 dual skin solid core door is built for increased security and peace of mind.
Comparison Table
| Feature | Single Skin – Sentry 650 Series | Dual Skin – Sentry 200 Series |
|---|---|---|
| Cost | Lower upfront cost – budget-friendly option | Slightly higher upfront cost – more of an investment |
| Appearance | Clean, simple design that suits any shed or garage | Solid, heavy-duty look with added strength |
| Weight | Lightweight – easier to handle and install | Heavier – more robust, may require extra effort to install |
| Security | Good everyday protection for sheds and garages | Superior shed and garage security with two steel skins and solid core |
| Durability | Strong and weather resistant | Extra-strong, designed for long-term use |
| Best for… | Everyday sheds, garages, and general storage | Sheds or garages storing high-value items, or when security is a top priority |
Note: Both the Sentry 650 Series and Sentry 200 Series steel shed doors are certified wind-rated, giving you peace of mind that they’ll stand up to tough conditions. And while the dual skin option is heavier, all Larnec doors come pre-hung – which means the frame, hinges and seals are already fitted. This makes installation much simpler compared to a door kit you’d need to assemble on-site. The ‘extra effort’ with a dual skin door refers to the lifting and positioning due to its extra weight, not the process of installation itself.
Larnec’s Sentry shed and garage doors also come in a range of configurations, including inward-opening options, double doors, and 3-sided frames, giving you flexibility to match your shed or garage setup perfectly.
Which One Should You Choose?
- If you’re looking for a reliable, cost-effective door that looks good and does the job, the Sentry 650 Series single skin range is a fantastic option.
- If you’re storing tools, equipment, vehicles, or anything of value and want the peace of mind that comes with added protection, the Sentry 200 Series dual skin solid core range is worth considering.
Final Thoughts
At the end of the day, both single and dual skin steel doors are excellent choices. It comes down to what matters most to you: budget and simplicity or extra strength and security.
Most of our customers choose the Sentry 650 Series, but for those wanting to step up their shed or garage security, the Sentry 200 Series offers that added layer of protection.
If you’re still not sue, that’s ok! Our team can help guide you to the right door for your space.
Still unsure which steel door is right for you?
Our team at Larnec is here to help. Whether you’re weighing up a single skin vs dual skin steel door, or need guidance on sizing, configurations, or custom options — we’ll make sure you get the perfect fit for your shed or garage. Call us today on 1800 527 632 or fill in the form on our contact page!
Frequently asked questions
Single skin steel doors use one layer of steel, while dual skin doors use two steel layers with a core material in between.
Dual skin doors are designed to support improved strength, insulation, and rigidity. Single skin doors are typically suitable for lighter-duty applications where insulation is not a priority.
A dual skin steel door is typically chosen when higher durability, insulation, or structural performance is required.
This makes it suitable for industrial, commercial, and external applications. It can also support environments where temperature control or frequent use is a factor.
Yes, single skin steel doors can be suitable for some industrial or shed applications where basic access is required.
They are often used in low-traffic or internal environments where insulation and enhanced strength are not critical. However, more demanding applications may require dual skin options.
The core material in a dual skin door affects insulation, rigidity, and overall performance.
For example, options such as EPS or PIR cores can be configured to support different thermal and structural requirements. The choice depends on the intended application and site conditions.
Key factors include application, environmental conditions, insulation needs, and frequency of use.
Dual skin doors are generally more suitable for demanding environments, while single skin doors can be used for simpler applications. Selecting a door designed to support your specific requirements helps ensure long-term performance.