20′ x 12′ Traditional Heavy Duty Shiplap Apex Wooden Garden Shed (6.1m x 3.66m)

Overview

This substantial 20′ x 12′ wooden garden shed combines exceptional strength with versatility, making it ideal for serious garden storage, workshops, or hobby rooms. Built from premium 12mm tongue and groove shiplap cladding on a heavy-duty frame, this top-of-the-range shed is engineered to last for decades with proper maintenance.

Key Features

• 12mm tongue and groove shiplap cladding for superior weather protection
• Heavy-duty 50mm x 50mm smooth-planed frame with diagonal cross bracing
• 12mm tongue and groove floor for durability and stability
• Apex roof design with mineral felt covering
• Georgian-style toughened glass windows for natural light and ventilation
• Lockable ledged and braced door with zinc hinges and rim lock
• Diamond-shaped finials for a stylish finish
• Generous interior height for excellent headroom and storage capacity

Roof Type

The apex roof design sheds water efficiently and creates additional headroom inside. The 12mm tongue and groove construction is topped with premium mineral felt covering to ensure a weathertight seal against the elements.

Dimensions

This spacious 20′ x 12′ apex wooden garden shed (6.1m x 3.66m) offers generous internal space for storing garden equipment, creating a workshop, or setting up a dedicated hobby area. The apex roof design maximises usable height throughout the interior.

Construction

This wooden shed features premium construction throughout. The 12mm shiplap cladding is mounted on a robust 50mm x 50mm frame with diagonal cross bracing for exceptional strength and rigidity. The floor is also constructed from 12mm tongue and groove to ensure durability underfoot. This heavy-duty specification makes it one of the strongest wooden sheds available.

Treatment & Guarantee

The shed comes dip-treated as standard and should be re-treated within 6 weeks of assembly, then annually thereafter, to protect the wood from rot and maintain its appearance. Standard specification includes a reassuring 1-year parts guarantee (excluding roof felt).

Upgrade to pressure-treated timber to extend the anti-rot guarantee to 15 years, plus receive FREE extra-thick 15mm cladding upgrade. Please note that pressure-treated timber still requires waterproofing upon assembly and annually. This upgrade provides long-term protection against wood rot and decay.

Doors & Windows

Access is via a traditional ledged and braced door fitted with zinc hinges, a door knob, and a secure rim lock to protect your tools and equipment. The door can be positioned in various locations to suit your garden layout. Georgian-style windows with toughened glass provide excellent natural light and ventilation inside the shed.

Optional upgrades allow you to choose from an extra-wide door, stable-style door, or double doors, depending on your storage needs.

Assembly Information

Please note that specification measurements for cladding, floorboards, and framing are nominal before machining. There can be a variance of plus or minus 1mm on cladding and floorboards, and plus or minus 5mm on framing.

Delivery Information

Free delivery is available to most UK addresses, making this premium garden shed a practical investment for homeowners.

Optional Upgrades

A wide range of optional upgrades are available to customise this shed to your requirements, including:

• Pressure-treated timber upgrade (with 15-year guarantee and FREE 15mm cladding)
• Extra-wide door or stable-style door option
• Double doors for easier access
• Door positioning to suit your garden
• Fixed window conversion to opening window
• Window removal option
• Pro Shed Base Kit for improved foundation support
• Wooden floor bearers for ground protection

Contact our customer service team for further details on any of these options.

Frequently Asked Questions

What makes this shed different from standard wooden sheds?

This is a premium heavy-duty specification with 12mm shiplap cladding, a robust 50mm x 50mm frame with diagonal bracing, and 12mm tongue and groove flooring and roof. It’s designed for serious users who need long-lasting durability.

Can I upgrade to pressure-treated timber?

Yes. The pressure-treated upgrade extends your anti-rot guarantee to 15 years and includes a FREE upgrade to extra-thick 15mm cladding.

Is this suitable for use as a workshop?

Absolutely. The generous 20′ x 12′ dimensions, excellent headroom from the apex roof, and sturdy construction make this an ideal workshop or hobby room shed. Browse our full range of garden storage solutions for additional options.