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Mammoth 18 x 12 Loglap Double Door Shed

  • Mammoth 18 x 12 Loglap Double Door Shed
  • Brand: Shire Garden Buildings
  • Product Code: SGB121
  • SKU:
  • Availability: In Stock
    Delivery: Flat Pack: 5 to 6 weeks | Assembled: 8 to 10 weeks
  • £3,645.00

Free Delivery*


The Mammoth 18 x 12 Loglap Double Door Shed from Shire is an attractive and well made British shed featuring high grade 12mm Loglap cladding and a sturdy 75mm x 50mm frame. The modular design means you can swap the windows, door and plain panels around so you can have the layout how you want. The doors and window frames are also pre-hung for easier assembly. The two opening front windows provide excellent ventilation allowing this building to also be used as a workshop, hobby room, teenagers den, or as a very stylish place in which to store your garden tools and equipment. In addition to the two opening windows, this shed benefits from double doors for ease of access.  

  • 12mm Loglap Cladding
  • 75mm x 50mm Framing
  • 16mm Tongue and groove floor supported by 70mm x 44 mm joists
  • Tongue and groove roof with mineral felt included
  • Dip treated with a 10 year anti-rot guarantee

Made from FSC sustainably sourced timber which has been pre-treated with a water based preservative for protection during transit, making an ideal foundation for colouring to suit your personal taste. In order to receive the full 10 year anti-rot guarantee, the timber must be treated with a high quality timber preservative prior to or shortly after construction in accordance with the manufacturer’s instructions. Home assembly required.

283cm (9ft 3in)
552cm (18ft 1.5in)
395cm (12ft 11.5in)
538cm x 373cm (17ft 8in x 12ft 3in)
Internal Width
524cm (17ft 2.5in) 
Internal Depth
359cm (11ft 9.5in) 
Internal Ridge Height
264cm (8ft 8in) 
Internal Eaves Height
204cm (6ft 8.5in)

The Mammoth Shed is available in a range of different sizes. Click below to view the full range.

Click Here To View All Available Sizes

Home Assembly Service 

If you don't have the requisite DIY skills a home assembly service is available on this item. This nationwide* service is conducted by the skilled Shire installation team at an agreed time which is convenient for you. Please note that this service is assembly only and does not include laying bases or disassembling existing buildings. Please ensure you have a suitable base in place before ordering this service. We recommend that the base onto which your building will stand should be at least 460mm (18") larger in each direction than the total footprint size of the building.


Larger items will be delivered on a non returnable pallet or via HGV. The item will be unloaded from either a flatbed vehicle or HGV using a hand pump truck which requires a flat, firm surface for unloading. In some cases, this may mean kerbside delivery only. Please make us aware of any vehicle access restrictions such as height, width or weight limits as failed deliveries due to access issues may incur a failed delivery charge.

Is this the right shed for you? 

Read our Shed Buying Guide to learn about the different types of shed construction and check whether this one is right for you.

 Flat Pack: 5 to 6 weeks | Assembled: 8 to 10 weeks
 Mainland delivery only. Unavailable to postcodes AB, DD, FK, IV, KW, KY, PA, PH, PO (IOW only) & TR (IOS only)

 Not available for delivery

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