20ft x 12ft Heavy Duty Apex Garden Shed

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As the largest in the range, the 20ft x 12ft Heavy Duty Apex Shed offers many opportunities for gardeners and DIYers alike. With so much room for the storage of large gardening equipment, there's also space to work on various other projects.

Heavy duty isn't a phrase that's used lightly. The materials in its construction are excellent quality and highly durable. Scandinavian timber is used throughout instead of chipboard while traditional coach bolting and galvanised nails are favoured rather than pins and staples.

The sturdy 50mm x 50mm framing has diagonal cross bracing to create a very robust structure. The door, which has a rim lock, is fitted with zinc hinges and is braced as well. For such a large shed, double doors are probably a wise choice and these are available as an option.

The floor and roof are tongue and groove, interlocking shiplap cladding forms a tough exterior, and Georgian style windows complete the shed's handsome appearance.

Heavy Duty Apex Shed Features: 

  • Glazed with 3mm horticultural glass
  • Tongue and groove floor and roof
  • Shiplap cladding
  • Joinery windows
  • Zinc coated hinges, rim lock and door knob
  • Base coat treated with high quality oil based medium oak wood preservative, with antifungal treatment
  • Traditional coach bolt assembly (no pins or staples) 
  • Galvanised nails
  • No OSB and no chipboard
  • Building is entirely made from high quality Scandinavian FSC timber
  • High quality heavy duty roofing felt
  • All framing corners are rounded off

20ft x 12ft Heavy Duty Shed Dimensions: 

  • Nominal size: 20ft deep x 12ft wide (6.09m x 3.66m)
  • Framing: 50mm x 50mm (2ins x 2ins)
  • Eaves height: 1895mm (6ft 3ins)
  • Ridge height: 2595mm (8ft 6ins)
  • Georgian windows: 610mm x 457mm (2ft 0ins x 1ft 6ins)
  • Door: 1880mm x 914mm (6ft 2ins x 3ft 0ins)
  • Floor Cladding: 12mm
  • Wall Cladding: 12mm

Please note: Photo shows double doors which is an optional extra.


Assembly Instructions

Select Your Options

Please Choose Your Door Position

  • With Apex Door Position A

  • With Apex Door Position B

  • With Apex Door Position C

  • With Apex Door Position D

  • With Apex Door Position E

Door Options

  • with Single Door

  • with Double Doors (optional)


Delivery Options

  • with Standard Mainland UK Delivery

  • with Delivery to the Highlands of Scotland



  • with Installation (optional)


Pressure Treated Bearers

  • with Pressure Treated Bearers (optional)


Delivery Information

FREE Mainland UK Delivery*

*These prices include delivery anywhere within mainland UK except for the Highlands of Scotland with the following postcodes; KW, IV, AB, PH, PL (With the exception of a 10 mile radius of Perth), PA (With the exception of Paisley and Greenock). These areas will be subject to a further cost.

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