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QuickJACK-PRO Adjustable Shed Base (for soil or grass)

QuickJACK PRO (SOFT GROUND) Adjustable Easy-Fit Shed Base Foundation

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QuickJACK PRO (SOFT GROUND) Adjustable Easy-Fit Shed Base Foundation QuickJACK PRO (SOFT GROUND) Adjustable Easy-Fit Shed Base Foundation QuickJACK PRO (SOFT GROUND) Adjustable Easy-Fit Shed Base Foundation

Product Code [QJK01SS]

Our Price: £105.99 RRP: £125.00

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5 Stars Read all customer reviews


QuickJACK-PRO (Soft Surfaces) Adjustable Shed Base Kit

QuickJACK-PRO Shed Base (Soft Surfaces) is an easy-to-fit adjustable base foundation for all garden buildings and decking. This innovative base system allows even the most basic DIY'er to achieve professional results in soil, grass (soft ground) in minutes. Important: If you have a hard surface ground such as paving slabs, monoblocks or concrete, please go to our NEW QuickJACK-HS (Hard Surfaces) instead.

The QuickJACK PRO (Soft Surfaces) system consists of three parts: heavy-duty screw-piles (spikes) which go down into the ground, brackets which fit onto your frame, and adjustable circular bearing-plates which spread the weight and can can be moved up and down easily using a 35mm spanner (not included) to level your base. The whole system is simple to use, and extremely fast... you can create a solid level base for your shed or summerhouse, or create a level deck, in minutes... with no ground levelling or preparation required. QuickJACK PRO (Soft Surfaces) has several which are suitable for square, rectangular, corner, hexagonal (6-sided) and octagonal (8-sided) buildings.

Apart from being fast and easy to install, the QuickJACK PRO (Soft Surfaces) base system allows for precise levelling. It also keeps timbers off the ground ensuring your shed stays dry and well ventilated, and it anchors your building to the ground. QuickJACK PRO (Soft Surfaces) is made from heavy-duty zinc-coated components which are designed to last, and it is completely reusable, allowing for simple re-positioning of your garden building if needed.

NOTE: As well as the QuickJACK system, you will need to make a simple framework to support the floor of your garden building. We recommend using 4"x2" (approx. 100x50mm) pressure-treated battens (not supplied) which are very cost effective, however you can use large timber battens if you wish.


  • Fast Delivery - Currently 2-5 working days
  • Quick and easy to install
  • Precise adjustment for easy levelling
  • Simple to re-adjust if required
  • Perfect for any size of shed, garden building, or deck area
  • 3x bearing-plate sizes: 6", 8" & 10"
  • Several brackets styles: corner, t-shape, cross, 180° in-line, plus 45° and 60° angles
  • Can be re-used over-and-over again
  • Much, much cheaper than concrete  

QuickJACK PRO (Soft Surfaces) Video

The QuickJACK PRO (Soft Surfaces) is very easy to install. Simply choose the area you want to put your building (level is better, but it isn't necessary), fix the brackets to your upside-down frame, screw in the spikes and plates, flip the frame the right way up and tap into the ground. Level the frame using the adjustable plates, then you are done!


Quality Construction

Each QuickJACK PRO (Soft Surfaces) component is machined right here in the UK using top-quality, heavy-duty, zinc-coated steel. They are VERY, VERY STRONG and each part is much stronger than the garden building that will be sitting on it (even when fully laden), so you don't need to worry about strength. We recommend that you use the correct size of bearing-plate though (i.e. large plate for large buildings) as this is what stops the shed sinking into the ground. There are 3-sizes of bearing plates, Small:150mm (6") capable of supporting 275kg per point, Medium: 200mm (8") which can support 500kg per point, and Large: 250mm (10") which can support 750kg per point!


Why Choose QuickJACK Pro (Soft Surfaces)?

Basically it is fast and easy to use with no ground preparation. There are many traditional shed and summerhouse base solutions available, and they all have their merits, however the QuickJACK PRO (Soft Surfaces) Base Solution is much cheaper than concrete, less labour intensive than paving slabs, faster than ProBASE or EcoBASE, and it's unique bearing-plate system doesn't continue to sink into the ground like most other existing spike-only base systems. You can create almost any base size, but to keep things simple we've listed twelve kits which cover the most popular sizes and shapes of buildings:
  • Kit-One
    • ​​4x Screw-Piles & Brackets
    • 6" (150mm) Bearing-Plates
    • (suits small buildings including 6x3, 6x4, 6x5 etc.)
  • Kit-Two
    • 6x Screw-Piles & Brackets
    • 8" (200mm) Bearing-Plates
    • (suits medium buildings including 7x5 and 8x6 etc.)
  • Kit-Three
    • 9x Screw-Piles & Brackets
    • 8" (200mm) Bearing-Plates
    • (suits large buildings such as 8x8, 10x6, 10x8 and 10x10)
  • Kit-Four
    • 12x Screw-Piles & Brackets
    • 10" (250mm) Bearing-Plates
    • (suits large/heavy buildings including 12x8 and 12x10)
  • Kit-Five
    • 9x Screw Piles & Brackets
    • 8" (200mm) Bearing Plates
    • (suits 8-sided octagonal summerhouses up to 10x10)
  • Kit-Six
    • 7x Screw Piles & Brackets
    • 8" (200mm) Bearing Plates
    • (suits 6-sided hexagonal summerhouses up to 10x10)
  • Kit-Seven
    • 8x Screw Piles & Brackets
    • 8" (200mm) Bearing Plates
    • (suits pentagon corner buildings & decking up to 10x10)
  • Kit-Eight
    • 9x Screw-Piles & Brackets
    • 10" (250mm) Bearing-Plates
    • (suits large/heavy cabins & decking up to 3mx3m)
  • Kit-Nine
    • 5x Screw-Piles & Brackets
    • 8" (200mm) Bearing-Plates
    • (suits small cabins & decking up to 2mx2m)
  • Kit-Ten
    • 16x Screw-Piles & Brackets
    • 10" (250mm) Bearing-Plates
    • (suits large/heavy cabins & decking up to 4mx4m)
  • Kit-Eleven
    • 12x Screw-Piles & Brackets
    • 10" (250mm) Bearing-Plates
    • (suits large/heavy cabins & decking up to 4mx3m)
  • Kit-Twelve
    • 12x Screw-Piles & Brackets
    • 8" (200mm) Bearing-Plates
    • (suits large/heavy cabins & decking up to  4mx2m)
  • Kit-Fifteen
    • 15x Screw-Piles & Brackets
    • 10" (250mm) Bearing-Plates
    • (suits large/heavy cabins & decking up to 6mx3m)
  • Kit-Twenty
    • 20x Screw-Piles & Brackets
    • 10" (250mm) Bearing-Plates
    • (suits large/heavy cabins & decking up to 6mx4.5m)
Please see the full component list on the table below, or download the pdf for more information.

No Maintenance

The QuickJACK PRO (Soft Surfaces) system is zinc-plated for long-lasting use. It requires NO MAINTENANCE or treatment after installation, and are designed to outlast the lifespan of your shed or garden building.

Straightforward Installation

The QuickJACK PRO (Soft Surfaces) base system has been designed to allow the novice to create a high quality, strong, long-lasting shed base without the need for a expensive professional service. Installation is simple, as you can see from the installation video, or the four easy steps shown below.

QuickJACK Step-1QuickJACK Step-2QuickJACK Step-3QuickJACK Step-4

Optional Extras

The QuickJACK PRO (Soft Surfaces) system can be purchase with a variety of brackets and plates depending on your requirements. There are 90° Brackets for square/rectangular corners, 90° T-Brackets for straight sides, 45° Brackets for Octagonal corners, 60° Brackets for Hexagonal corners, 180° In-line Brackets, and 120mm (5") Cross-Shaped Plates for below the framework. These brackets cover the vast majority of scenarios, however we can also supply non-standard plates and brackets, or different quantities upon request. For soft ground, or heavy buildings, we recommend upgrading from 10" (250mm) bearing plates to 12" (300mm). The additional charge is £7.49 per plate.


Please contact us prior to purchase if you have any queries regarding quantities, or if you require exact sizes. Manufacturers recommended maximum load and base dimensions are shown below for each kit, along with the quantity of brackets etc. A suitable quantity of screws are also included with each kit.
QuickJACK PRO (Soft Surfaces) Capacity Piles Bearing Plates Brackets Package Dimensions
Product Code Load
30cm (12") 15cm
T-Shape 45°
X- Plate Box-1 (cm) Box-2 (cm) Box-3 (cm) Box-4 (cm) Box-5 (cm) Weight (kg)
Kit-1 1100 4 4 - - 4 - - - - - 33x7x5 15x15x15 - - - 10
Kit-2 3000 6 - 6 - 4 2 - - - - 33x7x5 20x20x23 - - - 18
Kit-3 4500 9 - 9 - 4 4 - - - 1 33x14x5 20x20x23 - - - 27
Kit-4 9000 12 - - 12 4 6 - - - 2 33x14x5 25x25x15 25x25x15 - - 36
Kit-5 4500 9 - 9 - - - 8 - - 1 33x14x5 20x20x23 - - - 27
Kit-6 3500 7 - 7 - - - - 6 - 1 33x14x5 20x20x23 - - - 21
Kit-7 4000 8 - 8 - 3 2 2 - - 1 33x14x5 20x20x23 - - - 24
Kit-8 6750 9 - - 9 4 4 - - - 1 33x14x5 25x25x15 25x25x15 - - 27
Kit-9 2500 5 - 5 - - - - - 1 - 33x7x5 20x20x23 - - - 15
Kit-10 12000 16 - - 16 4 8 - - - 4 33x7x5 33x14x5 25x25x15 25x25x15 25x25x15 48
Kit-11 9000 12 - - 12 4 6 - - - 2 33x14x5 25x25x15 25x25x15 - - 36
Kit-12 6000 12 - 12 - 4 6 - - - 2 33x14x5 20x20x23 20x20x23 - - 36
Kit-15/10 11250 15 - - 15 4 8 - - - 3 45

Information shown above has been supplied by the manufacturer, and is as accurate as possible (errors and omissions excepted), however they are intended only as a guide. *The free delivery service covers most of England, Wales and Southern Scotland (mainland only) and unfortunately delivery is not available overseas at present. Orders received before 11am will be processed for delivery on an overnight courier service, however this cannot be guaranteed especially during peak season. Times shown are typical for most areas, however this is approximate and cannot be guaranteed. Outlying areas may be subject to additional charges, please check before ordering. Delivery lead time shown is typical for most areas, however this is approximate and cannot be guaranteed, so please check before ordering if delivery time is critical.

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Customer Reviews
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Reviewer: Jordan Hogarth from York   5 Stars

What a fantastic product! Saved me so much money as an alternative to laying concrete let alone it's simplicity in installing! Thanks a million

Reviewer: Chris Riordan from Dorset   5 Stars

First time building a shed (it's 5m x 3m). Didn't want or need the hassle of a concrete base, and kinda wanted to be more green - QuickJACK PRO to the rescue. Brilliantly simple, and for a novice had it all set up, in place and solid in under 30 minutes. Would definitely recommend

Reviewer: Caroline Elliott from    5 Stars

Had to tell you that QuickJACK Pro is brilliant. Was not looking forward to erecting our new shed, but with QuickJACK Pro the process was made so much easier. I think it took us about 7 minutes to level the base once we put it in place. Plus, if the shed shifts in level in the future I can readjust it. Sheer genius.

Reviewer: R Painter from Gloucester   5 Stars

Just to let you know, received my Quickjack Kit no 4 and I must congratulate you on your service and the excellence of the product, many thanks.

Reviewer: Rob Clark from Bearsed, Maidstone   5 Stars

I can't recommend this product highly enough.

I had ground that had a drop of about 12 inches front to back and then a tilt left to right, with no way of digging out. The prospect of trying to build up a base to that height AND make it flat was too much to even think about.

I built a frame for the base of the summerhouse, fixed the jacks at the correct points and just hammered them slowly into the ground.

I was able even to make a final adjustment after the flooring had gone on.

Also, the service from A1 sheds was top drawer, they helped me pick the right kit and even sent through a diagram for where I should put the spikes.

All well worth 5 stars!

Reviewer: Robert Short from Luton   5 Stars

These were alot heavier and stronger than the pictures made them look. I got my entire shed up in one afternoon. Can't recommend it enough.

Reviewer: John Sleights from Birmingham   5 Stars

Wow! I can't believe how easy this system was to use. Thanks for the quick turnaround.

IMPORTANT: Imperial sizes shown in the description are approximate, and are provided by the manufacturer purely as a guide. Please refer to the metric dimensions for more accurate sizes, or contact us prior to purchase if you have any specific requirements.