Large Wooden Storage Shed with Slate Roof
Sizes & Storage Capacity
The Big Storage Shed with Slate Roof is designed for customers who need significant, usable storage space, not just floor area. With a full internal standing height and wide internal layout, the shed comfortably accommodates large tools, garden machinery, ride-on mowers, workshop equipment, and bulk outdoor items.
Its generous dimensions make it particularly well suited to large gardens, rural properties, estates, and light commercial use, where storage needs go beyond what a standard garden shed can offer. The internal height allows adults to move around freely without stooping, making it practical for regular access rather than occasional storage.
This shed is ideal if you want a single, durable structure to replace multiple smaller storage units, keeping everything organised and protected in one secure space.
Overall dimensions:
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Length: 6000mm
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Width: 3000mm
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Overall height: 3200mm
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Internal standing height: 2000mm
For customers looking to organise multiple outdoor needs, this shed can also work alongside our premium bin stores and other garden storage options to create a well-planned outdoor setup.
Materials & Build Quality
The Big Storage Shed with Slate Roof is built for long-term outdoor use, using robust structural timber rather than lightweight shed materials. The main structure is formed from 100mm treated timber posts at each corner, providing excellent strength, stability, and resistance to movement over time.
Internally, the shed is framed with 100 × 50mm C16 graded structural timber, including integrated wind bracing to maintain rigidity in exposed or windy locations. This construction method gives the shed a solid, permanent feel that far exceeds standard panel-built garden sheds.
The walls are clad in 15mm treated shiplap, offering reliable weather protection while maintaining a clean, traditional appearance. Underfoot, the floor is constructed from 22mm tongue and groove pine boards, supported by 50 × 50mm treated timber runners, making it suitable for heavy tools, machinery, and regular foot traffic.
Every element of the build is designed to prioritise durability, strength, and long-term performance.
If you require a different size, layout, or structural specification, we also offer bespoke storage builds tailored to individual requirements.
Slate Roof Construction
The slate roof is a key feature of the Big Storage Shed, designed for customers who want maximum longevity and weather protection. Unlike felt or lightweight roofing systems, slate offers long-term performance with minimal maintenance.
The roof structure is built using 150 × 50mm C16 graded timber trusses, including a king post for added strength and load distribution. This traditional construction method provides a solid base capable of supporting the weight of natural slate while maintaining structural integrity over time.
The roofing system includes:
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11mm OSB roof boarding
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Waterproof breather membrane
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Reclaimed slate tiles
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Clay ridge tiles
Together, these layers create a durable, weather-resistant roof that performs well in all seasons and enhances the shed’s overall appearance. The slate finish also complements traditional gardens and rural settings, making it a practical and visually refined choice.
Practical Storage & Organisation
The interior of the Big Storage Shed is designed to make organising tools and equipment straightforward and efficient. Along one internal wall, the shed includes three fixed shelves, each 400mm deep, providing generous space for storing smaller tools, containers, and everyday garden equipment.
One internal wall is fully boarded in OSB, allowing you to easily install hooks, brackets, or custom storage systems. This makes it simple to hang tools, extension leads, or workshop accessories exactly where you need them, keeping the floor area clear and accessible.
This combination of shelving and wall-mounted storage helps maximise usable space while keeping items organised, visible, and easy to reach — particularly useful in a shed of this size where efficient layout makes a real difference.
Customers storing firewood alongside tools and equipment may also wish to explore our range of oak log stores for dedicated log storage.
Access, Doors & Security
Access to the Big Storage Shed is designed with practicality in mind, making it easy to move large or heavy items in and out. The shed features two sets of wide double doors, each measuring 1400mm, providing generous opening space for machinery, equipment, or bulky storage items.
Each door is framed with 100 × 50mm C16 CLS structural timber and built using a ledged and braced design, helping prevent twisting or sagging over time. This construction method ensures the doors remain strong, stable, and reliable with regular use.
The doors are fitted with heavy-duty ironmongery, offering both durability and security. This setup provides peace of mind while maintaining smooth, practical access for everyday use.
Natural Light & Ventilation
The Big Storage Shed includes a single-glazed, toughened glass window to bring natural daylight into the interior, making the space easier and more comfortable to use. The window is top-hung, allowing it to be opened easily to improve airflow when required.
This combination of natural light and ventilation helps reduce moisture build-up inside the shed, which is particularly important when storing tools, equipment, or timber products. Improved airflow also creates a more pleasant internal environment for regular access and use throughout the year.
Sustainability & Responsible Sourcing
Sustainability is central to how we build at Woodson & Son.
All timber used is FSC certified, ensuring responsible forest management and ethical sourcing. We also partner with One Tree Planted, supporting global reforestation efforts by planting trees for every product sold.
Learn more about our sustainability approach here:
👉 https://woodsonandson.com/sustainability/
Delivery & Free On-Site Assembly
Every Big Storage Shed includes free professional on-site assembly by our experienced installation team.
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Typical lead time: 6–8 weeks
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Installation carried out by our own team
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Hassle-free setup included as standard
Please note: If accommodation is required due to location, this may incur an additional charge. Please enquire prior to purchase.
For full lead times and location-specific details, please see our delivery and installation information.
Explore Related Storage Options
If you’re planning a wider outdoor setup, you may also wish to explore our other handcrafted storage solutions:
All of our outdoor structures are built to the same high standards, with bespoke options available across the range.
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