Plastic Compost Bin Expansion Add-On

(2 customer reviews)

From   £ 94.99

Tekplas’ Plastic Compost Bin Expansion Add-On enables you to upgraded your existing 500 Litre Compost Bin to be 1000 Litre compost bin or greater.

Please Note:

You are only purchasing 3 sides of the compost bin when buying a compost bin add-on

LEAD TIMES: Typical lead time is 10-15 working day(s). All orders are built to order in our UK factory.
Grass / Soil
- +
SKU: CBADD Categories: ,
  • High Quality UPVC Product
  • Strong Rigid Construction
  • Quick to Assemble
  • Easy Access
  • Durable for Outdoor use

Tekplas Plastic Compost Bin Expansion Add-On is a great way to increase the capacity of your 500 Litre compost bin to a 1000 Litre.  It can be fixed to either side of your existing bin and will look seamless.

It is manufactured from uPVC and is easily assembled and will enable you to rotate or separate your compostable waste.

Should you have any bespoke compost bin requirements or areas you wish to use our Tekplas Composting products in please contact us.

Exterior Dimensions

Length and Width: 92cm

Height: 77.5cm

The bin is made from hollow PVC extrusions which insulate the compost, retaining the heat and aid in generating good quality compost. When you need to empty or transfer the compost the individual panels can be lifted to enable digging out.

The kit contains the following

3 Sides Of The Bin

15 x T&G Panels

2 x Posts & Caps

3 x Top Brace Bar

2 x 700mm Ground Spike = If choosing Grass or Soil Option

16 x Screws & Screw Caps = If choosing patio option

Our ground spikes are knocked into the ground and the posts slide over the top


The Best Method For Composting 

We have used these bins ourselves some having been in service for over 10 years and are still working well today with almost no maintenance required at all.

Set up on your bin on gravel or a surface that will allow air flow underneath cover the top of your compost with a loose fitting cover that will allow water to pass through.

We use a piece of old hessian carpet to hold in the heat but will pass rainwater

Try to allow air flow underneath via large stones or gravel, this will also allow drainage.

Try to keep the garden waste /cuttings etc cut up as small as possible to speed up composting. Mix the composting materials and introduce some vegetable kitchen waste and a small amount of garden soil, or a composting aid with each layer of composting materials that you add to your bin.

Try to rotate the layers (if possible). If you have bought the extension bin/s remove some of the separating panels and drag the materials across to the empty bin (using a rake) occasionally to aerate the compost. Adding a little garden soil each time you do this will rapidly increase the rate of decomposition.

PLEASE NOTE: The compost bin add-on is 3 sides only, allowing you to add to your original compost bin. The pictures are to show the combinations possible with the product.

Select Colour

Brown, Green

Floor Type

Grass / Soil, Patio

Compost Bin Lid

No, Yes

2 reviews for Plastic Compost Bin Expansion Add-On

  1. Sarah

    I have recently purchased the Tekplas compost bin with two add-on sections to replace my rotted and collapsed timber compost bins and I must say that already I am mighty impressed. The slats just slot in and lift up again with so much ease I wondered why I struggled with the timber version that warped and swelled for so long. They look really smart as well. I was surprised that they were only slightly more expensive than the cheapest timber ones on the market but I’m certain that they will last much longer so were very much worth the small extra cost.
    I went for the patio version that screw together at the bottom as I had paving slabs in place already; just make sure you have someone there to push against when drilling the pilot holes otherwise you can accidently loosen the structure and miss all the pieces you are trying to grip together.
    The top clamping sections are brilliant at holding everything in place and can be temporarily used on the first or second section up when erecting/fixing together (easier to jump out when that pesky wasp shows up!) and moved up to the top when you are finished.
    Great to know they use a proportion of recycled plastic. Would definitely recommend to others.

  2. Mr & Mrs C Wade

    “This Tekplas compost bin is fantastic! What can I say – it arrived within days of ordering, and with no drills or screws needed, was assembled in under an hour, and that was for a three bin run! The tongue and groove interlock design means it all just slots together. Another great feature are the steel rods that slot down the posts and into the ground to stabilise and anchor it.
    We love it!”
    Mr & Mrs C Wade

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Compost Bin Add On Assembly Instructions