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EcoBase FASTFIT Shed Bases *from £4.59*

EcoBase FASTFIT Shed Base Foundation *ONLY £4.59*

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EcoBase FASTFIT Shed Base Foundation *ONLY £4.59* EcoBase FASTFIT Shed Base Foundation *ONLY £4.59* EcoBase FASTFIT Shed Base Foundation *ONLY £4.59* EcoBase FASTFIT Shed Base Foundation *ONLY £4.59*

Product Code [EK451/130+]

Our Price: £4.59 RRP: £6.39

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5 Stars Read all customer reviews


EcoBase FASTFIT Shed Base Foundation *OFFER*

ECOBASE FASTFIT shed base foundation system is fast, easy-to-fit, lightweight, eco-friendly alternative to traditional concrete bases for sheds, cabins and greenhouses, and is one of the strongest shed base grid systems available. ​As the UK’s original plastic grid foundation system for garden buildings, EcoBase has evolved with the introduction of the FastFit system. Not only does it provide you with a firm, strong, long-lasting and well-drained foundation for garden buildings, capable of supporting 60 tonnes per grid when empty, it is now even quicker to install through the use of self-fastening push connectors to link grids together. EcoBase have a 10-year guarantee and these reusable grid tiles are lightweight and easy to handle, costing a fraction of the price of a traditional concrete base.

To create your shed base, simply join as many Ecobase FastFit grid tiles together as required. They are easily connected and come complete free weed suppressant ground membrane. The EcoBase FastFit tile is available in 1 size - approx. 500x500mm but can be joined together to make a foundation of any size, and can be easily cut to any shape using a normal hand saw. We recommend that Ecobases are fitted as a full base (we call this set-up Option-1), however you can remove some tiles for a cost saving if preferred (Option-2). For more information on designing your base, please click on the link to the right to download the EcoBase PDF guide.

Prices above are based upon quantity rates as follows:
  • 6-11 Grids £6.39 £5.99 each
  • 12-19 Grids £6.39 £5.39 each
  • 20-24 Grids £6.39 £5.19 each
  • 25-99 Grids £6.39 £4.99 each
  • 100-119 Grids £6.39 £4.89 each
  • 120+ Grids £6.39 £4.59 each
Important information for existing customers: The Swift FastFit system is not compatible with previous EcoBase grid versions 2015 and earlier.


  • STRONG >300 tonnes per m2*
  • FREE DELIVERY with same day dispatch**
  • FREE water-permeable weed-suppressant membrane
  • Lightweight and easy to handle
  • Quick and easy to install
  • Reusable and recyclable
  • Made in the UK from 100% UK recycled plastic
  • Suitable for any size of shed
  • Can easily be cut to size or shape if required
  • Much, much cheaper than concrete
  • Ideal for use as drainage or as a walkway in your greenhouse
  • Suitable for garden sheds, summerhouses, playhouses & storage units

Simple Assembly

The EcoBase FastFit is very easy to assemble. Simply prepare a level area (the EcoBase can be laid directly onto grass, soil, builders sand or pea gravel), then lay out your EcoBase tile on top of the membrane, cut to size if necessary, then click each FastFit grid together... simple!


No Maintenance

Each EcoBase FastFit grid is made from 100% recycled plastic, and requires NO MAINTENANCE or preservative. These tiles are are designed to last, and are guaranteed to last 10-years!

Strong Quality Construction

​Each EcoBase FastFit grid is very, very strong, in fact it is TWICE AS STRONG as some of it's competitors and therefore needs no filling out with gravel or soil. They are made from UV stabilized, 100% recycled plastic and are manufactured right here in the UK. Each new profile grid measures approximately 500mm x 500mm x 40mm weighing just 1.4kg each, however thanks to it's patented design it has a huge crushability rating which can withstand 300 tonnes per sq. metre*. Check out our video below showing just how strong and environmentally friendly each EcoBase tile is.


Various Layout Options

We recommend that the Ecobase FastFit grids are joined together to make a complete base. This is the strongest and easiest way to create your foundation, and we call it Option-1. If you are trying to keep costs down as low as possible, then you can leave some spaces underneath your floor. It's not quite as strong, and it takes more planning as you have to ensure that your bearers are still being supported, however it can save you a fair amount of money, especially if it's a large base. We call this set-up Option-2. You can download our base design ideas here.

No Professional Assembly

The Swift EcoBase FastFit has been designed to allow even a novice DIY user to create a high quality, strong, long-lasting shed base without the need for a expensive professional service. 

Optional Extras

No optional extras are available for the EcoBase FastFit, however it does come with a water-permeable, weed suppressant ground membrane which will be cut to match the size of your building (please state size when ordering). EcoBase FastFit tiles are very strong, and don't need to be filled with gravel, which will make a substantial saving to the cost of your shed base.
Use pea shingle on visible areas of the Ecobase only
However, you may want to fill any visible external areas with pea shingle to make it look nice, and reduce the amount of water splashback from the roof. Normally it takes about 10kg of pea gravel to fill a tile, and you should be able to purchase this from your local building supply company.


Please contact us prior to purchase if you have any queries regarding the dimensions, or if you require exact sizes.
Swift Model Material Effective Size (mm)  Weight Capacity Crushability*
EcoBase Ref. No. Grid Recyclable Colour Width Length Height (per grid) (pea shingle) (per m2)
FastFit 40 EK451-050501 plastic yes black 500 500 40 1.4kg 10kg >300 tonnes

*Crushabilty rating is measured when grids are filled with pea shingle. 


**Prices above are based upon quantity rates as follows:
  • 6-11 Grids £6.39 £5.99 each
  • 12-19 Grids £6.39 £5.39 each
  • 20-24 Grids £6.39 £5.19 each
  • 25-99 Grids £6.39 £4.99 each
  • 100-119 Grids £6.39 £4.89 each
  • 120+ Grids £6.39 £4.59 each
Prices include delivery to most of mainland England, Wales, and Southern Scotland, however delivery to outlying areas may be subject to an additional charge (see map below). Orders received before 11am will be processed for delivery on an overnight courier service, however next-day delivery cannot be guaranteed during peak season. Delivery lead time shown is typical for most areas, however this is approximate and cannot be guaranteed, therefore please check before ordering if delivery time is critical. 

IMPORTANT NOTE: Please ensure that you order the correct quantity for your requirements, as we are unable to accept the return of any surplus-to-requirement grids. If required, we can arrange for the return of your full order (within 14 days), however as the EcoBase and the bespoke cut-to-size membrane is delivered direct from the manufacturer, you should be aware that there would be a collection/delivery/re-stocking charge which will be deducted from your refund. Small top-up quantities will be subject to a delivery surcharge.

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Customer Reviews
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Reviewer: Andrew McGlasson from London   5 Stars

Great service from A1 Sheds, product arrived quickly and good communication. Quick and easy to lay the base. Very happy with the results.

Reviewer: Monica Graeme from Ludlow   5 Stars

What wonderful service!! The Eco-base that I ordered last Thursday arrived today. Thank you very much for such a fast and efficient delivery.

Reviewer: Garry D from Edinburgh   5 Stars

Just as I had hoped. Can't fault the product or the service. Thanks

Reviewer: Margaret from Consett   5 Stars

Felt I had to contact you to commend you on your very prompt, and speedy delivery. Goods arrived this morning, well packaged and order fully completed with no parts missing which is sometimes the case. Once again thank you.

Reviewer: Dil from Milton Keynes   5 Stars

Yep.... I''m impressed. Didn''t expect it to work as well as it did, so I''m well chuffed. Good product, good service, ''does exactly what it says on the tin'' (box).

Reviewer: Tracy Smith from Swindon   5 Stars

Thank you for the quick delivery of my shed base. An excellent product which I will share with my friends.

Reviewer: David Linacre from Liverpool   5 Stars

Hello, bases have just been delivered. Thank you very much for the “swift” response to my order!

Reviewer: Ian Mackinnon from Paisley   5 Stars

Order arrived today, thank you for a fast and efficient and pleasant transaction.

Reviewer: Allan from Welwyn Garden City   5 Stars

Many thanks for such a speedy delivery! Great service - will recommend you to friends and colleagues.

Reviewer: Janette from Sudbury   5 Stars

I just wanted to say what an excellent service, from initial telephone contact through to delivery. Excellent. Thank you!

Reviewer: R. Robertson from Middlesbrough   5 Stars

"EcoBase" order safely received. 1st class service ( 28 hours from order to receipt ) Thanking you R Robertson.

Reviewer: Catherine Dunnet from Edinburgh   4 Stars

I needed a shed base for my allotment, and this was perfect (nice and light to carry). I don't know how I would have managed to get concrete to my plot. Also I can take it with me if I move! Delivery was fast, though not next day as I expected.

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.