10′ x 13′ Yardmaster Castleton Anthracite Apex Metal Shed (3m x 3.9m)
Overview
The Yardmaster Castleton is a substantial 10×13 metal shed built from hot-dipped galvanised steel and finished in contemporary anthracite grey. Made in Great Britain, this apex metal shed provides robust, maintenance-free garden storage for tools, outdoor furniture and bicycles. With 7 layers of protective coating and a 15-year anti-rust guarantee, it’s engineered to withstand extreme weather conditions without warping, cracking or splitting.
Key Features
- Completely maintenance-free – no preservative coating or roof repairs needed
- 15-year anti-rust guarantee
- Made in Great Britain from hot-dipped galvanised steel
- Impervious to pest and insect damage
- 2 translucent roof panels for natural light
- Ridge and eaves ventilation for optimal storage conditions
- Lockable sliding double doors with anti-tamper bolts
- Padlock fixing point included (padlock not supplied)
- High gables suitable for tall users
- Weatherproof in extreme conditions
Roof Types
This metal shed features a traditional apex roof design. The twin translucent roof panels allow natural light into the interior, making it easier to locate stored items and work inside. Ridge and eaves ventilation prevents condensation and maintains ideal conditions for stored equipment and furniture.
Dimensions
The 10 x 13 Yardmaster Castleton measures 3m x 3.9m, offering ample internal space for substantial garden storage needs. The high gable design maximises headroom and internal usable height, making it suitable for storing tall items or for users of above-average height.
Construction
Built from hot-dipped galvanised steel with 7 protective layers, this metal shed will never warp, crack or split. The baked-on anthracite-grey finish provides a contemporary aesthetic whilst maintaining durability. The construction is completely impervious to damage from insects, pests and corrosion.
Treatment & Guarantee
The Yardmaster Castleton comes with an impressive 15-year anti-rust guarantee. The 7-layer protective coating eliminates any risk of corrosion, ensuring the shed maintains its immaculate appearance for many years. Being completely maintenance-free, you’ll never need to apply preservative or repair roof felt.
Doors & Windows
Access is provided via overlapping sliding double doors fitted with anti-tamper bolts for security. A padlock fixing point is included (padlock not supplied), allowing you to secure your tools and possessions. The 2 translucent roof panels provide natural illumination whilst maintaining weatherproofing.
Assembly Information
The shed is supplied with clearly-numbered parts, an assembly manual, anchor fixings, rust-resistant screws and UK-based telephone support to assist with installation. Assembly is straightforward with professional guidance available by phone.
Delivery Information
Free delivery is available to most UK addresses. Please note this metal shed is supplied without flooring and must be erected on a level concrete or paved base. The optional floor support kit allows you to add your own timber floor (timber not included).
Optional Upgrades
- High-strength galvanised steel floor support kit – allows installation of a timber floor (timber not included)
- 3-tier steel shelving unit – for internal organisation and storage
Please note: the floor support kit cannot be returned alone if you decide not to build a floor.
Frequently Asked Questions
Does this shed come with a floor?
No, the shed is supplied without flooring and should be erected on a level concrete or paved base. A floor support kit is available as an optional extra.
How long is the guarantee?
The Yardmaster Castleton comes with a 15-year anti-rust guarantee.
Is assembly included?
Assembly is not included, but the shed is supplied with all necessary parts, an assembly manual and UK-based telephone support.
Looking for other garden sheds? We also stock wooden sheds and garden storage solutions to suit all requirements.

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