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View Treble Bay Easy Access Timber Composter video

Treble Bay Easy Access Timber Composter

In a nutshell....

This is the full treble bay unit from our famous New Zealand Box system. The kit builds a composter measuring 270cm (9ft) by 90cm by 120cm (4ft) high. Also features our unique brackets enabling you to easily remove the front of the composter for easy emptying.


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Our 3 bay New Zealand Box composter is the ultimate composting system. The design works by using the three separate bays to bring you garden and kitchen waste through three distinct stages of composting to produce a perfectly mixed, rich and dark end product. The system works by adding material to the first bay until full and partially broken down. The part finished compost is then transferred to the second bay which mixes it and adds air to the pile while you add any new material to the now vacant first bay. The composting process starts again in bay 2 and allows the heap to rot down further. Finally the material is added to the third bay where it will be extracted from once the material has broken down fully into what gardeners call 'black gold'. When working correctly the New Zealand Box composter always has 3 working bays with material at various stages of decomposition; it's not just a compost bin, it's a composting system!

The unit is made up of sturdy 3 inch square (7.5cm) corner posts with timbers permanently fixed to the back and sides of the unit. The centre posts also feature an internal groove which allows the dividing wall to be added and removed easily when moving material from one side to the other. Our composters also include our unique bracket system on the front of the box which allows the retaining boards to be removed for filling and emptying the bin; our system even allows you to remove the bottom row of boards without removing the top!

The corner fixing posts are designed to be buried in the ground but can also be easily modifies to suit placing on a hard surface. Please contact us if this is a requirement for your garden.

Our wooden composters are the most forgiving type of bin as the increased air circulation afforded by the slatted sides means you need not be as careful with your mix as you would with a closed plastic unit.

The Kit features as follows:

5 no. 180cm (6ft) by 17.5cm tall treated timber boards.
27 no. 90cm (3ft) by 17.5cm tall treated timber boards.
8 no. 7.5cm (3inch) square and 4ft high treated timber corner posts.
21 no. 85cm (2ft 9inch) by 15cm (6 inch) tall treated timber boards for removable front slats.
42 no. Heavy duty injection moulded fixing brackets.
90 no. 5.0 x 60 Self tapping wood screws.
84 no. 4.0 x 30 Self tapping wood screws.
1 no. 270cm (3ft) 3in x 2in Joining rail.

Click the link below for Assembly Instructions:

Treble Bay Composter Assembly Instructions

Mounting Bracket Templates:

LH Mounting Bracket Template

RH Mounting Bracket Template


Write a Review
April 10th, 2019
The 3 bay compost unit is quite difficult to setup. It is not a one person job. The instructions are very hard to follow. It didn't help that it was not all the parts were delivered in the same day. Putting on the plastic brackets that the wood slides into is a very time consuming part. I don't see why holes cannot be pre drilled. The paper template is not great at all. In the end I had to pay someone to help me out. One of the Middle cuts of wood was 2cm to long and had to be cut. The end product is nice but we found it was difficult to line up the brackets exactly so it is not the straightest at the front which is a pity, but after 4 hours we were done with it! I think with a few tweeks this could be made a lot easier for the end user to setup
June 15th, 2018
Took me a couple of hours to assemble but not too difficult. The three bin composter was different than that depicted in the video in that I didn't need to set posts in concrete. This in fact gave me more flexibility to select a location and the possibility of moving it if this site doesn't work out well. I was able to move the assembled frame on my own but would suggest that it really requires two people. The slants on the front and the brackets for holding them were very easy to assemble. The slats make emptying the wheel barrow very easy. It looks neat and tidy in the garden. Here's to buckets of compost. There isn't anything negative I can say about this product.
January 23rd, 2018
I bought the three bay New Zealand compost system as I to put it quite frankly was too lazy to build my own :) I had one area for composting which was made from old wood pallets, This construction was easy enough to assemble with two people, (I would recommend two people) and has been in working order since it was put together, a very good piece of kit for anyone interested in a system used for Composting household waste and garden vegetation. Very happy with the product, would recommend to anyone, looks pretty and serves a great purpose! Thank you....
March 14th, 2017
We have had a homemade DIY new Zealand compost bed system for years. As it was starting to fall to pieces we thought we would treat ourselves to this state of the art one. The video shows clearly how the compost process works. There was a good bit more assembly than we had bargined for - you definitely need two people and a good electric screw driver. When we had problems with construction Andrew was very helpful in sorting them out.The end product is sturdy, easy to use and holds a lot of compost. Hope it lasts as long as the old ones and then it will have been worth the work of putting it togather
Ask a Question
Asked By Amanda
on March 22nd, 2019
In the kit list it states the posts are 4ft but the compost bins are 4ft which suggests they will not be long enough to go into the ground. Should they not be 6ft? If so this means you would also have to level the ground where the bins are to be located.
Answered by Niall
on March 25th, 2019
Hi Amanda These kits used to be supplied with posts that went in to the ground however we now only supply them to sit on the surface as driving them in ground was overfill and a lot of people were struggling with that. This is explained in the product description as the video on Youtube is an older version Regards Niall Quickcrop
Asked By colin naylor
on July 27th, 2016
the composter in the video looks bigger than the spec. advertised. Is this an option, if so where can i see this on your web?
Answered by Andrew
on July 27th, 2016
Hi Colin. Unfortunately we had to make the composter slightly smaller due to shipping weight restrictions but not by much. I am afraid the dims available on the site are the only versions available. Sorry! Andrew

All UK Standard Deliveries only £3.95, heavy orders only £9.95.

All our UK deliveries are only £3.95 no matter how many products we deliver anywhere in mainland UK. For heavy items like ponds or garden furniture we charge only £9.95 per complete order. We also deliver to other countries in Europe, please see our rates below.

Our delivery fee is an absolute bargain and is far cheaper than any of our competitors, please take this into account when comparing product prices.


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Heavy goods deliveries
For heavy pond or garden furniture deliveries we charge an extra £4.00 to our standard delivery rate. Our rates below are our standard rates, please add £4.00 for heavy goods. All delivery rates are automatically added to your order when you add a product to your cart.

Where do we deliver to?
We deliver nationwide to the UK, the island of Ireland, Austria, Benelux Countries, Czech Republic, Denmark, Finland, France, Germany, Hungary, Italy, Norway, Poland, Portugal, Spain, Slovakia, Slovenia, Sweden and Switzerland. Please see our delivery rates below:

£3.95 - The United Kingdom and Island of Ireland (Highlands and Islands may incur a surcharge, please contact us on 0044 1788 298 795 for details)

£9.95 - Austria, Belguim, The Netherlands, Luxembourg, Denmark, France, Germany, Switzerland.

£19.95 - Czech Republic, Hungary, Italy, Poland, Slovakia, Slovenia, Sweden.

£24.95 - Finland, Norway, Portugal, Spain.


How long does delivery take?
Stock permitting we aim to dispatch your goods within 1 - 2 working days of receiving your order. The average time taken from order to delivery is 3 - 4 days in the UK and Ireland, and up to 6/7 working days for France, Germany and the Benelux countries.

Can I track the parcel myself?
When the order has been dispatched we will provide you with a tracking number for your shipment, you will be able to log on to the relevant couriers website and see where your parcel is at any time. You can also call the office on 01788 298 795 or email if you need more information.

What If I'm not in at time of delivery?
The driver will leave a note with the depot contact number. Delivery can be arranged for the next day or a later date. The driver will not leave the parcel without a signature however they can leave your parcel with a neighbour if instructed to do so in our notes section at the checkout stage on the website. If your order is for Raised beds or Ponds it will be delivered by Tuffnells carriers and they do not require a signature for the delivery. They will leave your order in a safe place and put a note in your door telling you where it is (typically down the side of the house or around the back)

I'm ordering several items, do they all arrive at the same time?
All items dispatched at the same time will normally be delivered in one delivery. The exceptions are bulk bags of soil or compost which comes in a separate delivery using a different delivery company.

What if my parcel is damaged or I wish to return the goods I have ordered?
Contact our office on 01788 298 795 and we will arrange collection and refund or replacement of faulty or damaged goods free of charge. We have a 'no quibble' policy on damages and will replace immediately once we receive an emailed photo of the damaged item.

If you wish to return an undamaged item for any reason we do charge a collection fee which may vary depending on the number of parcels, each case is different so please call us to arrange. We promise to keep returns fees fair and as low as possible. To arrange a return please contact our sales team on 01788 298 795

Quickcrop Returns Policy

Great customer service is what we are all about. You will never have to worry about damages, the item not being as expected or simply deciding you don’t want the item and you wish to return it. If you've changed your mind about your purchase, please return it in its original condition with proof of purchase within 35 days of receiving your order and we'll exchange or refund it. We will also refund the standard delivery charge, provided you return the full order. If you're only returning some of the items on your order, then we will only refund the cost of those items. We do not cover the cost of returning the item to our warehouse.

Please note that the goods must be returned in the same condition that they left us so if you have opened your parcel you must ensure it is well enough packed to make it back to us undamaged.

Damaged Goods Returns
If the parcel is visibly damaged upon delivery, Do Not Sign for the Order. After that just email us on and we will do the rest. Obviously it is not always possible to spot a damage in that moment of delivery so don’t worry. As soon as you open your parcel if the goods are not as they should be just email us a photo of the issue clearly explaining the problem. We will be back to you within the day with a solution. This is normally to arrange a collection at a time that suits you and arrange for a replacement to be sent out. We have very few damages so we act very quickly. Please note the Photo is important so that we can claim off our couriers.

A Simple Return
So you have decided on receipt of the goods that you simple don’t want them. Again simple. Just email us at explaining that we want to return your goods clearly stating your name and your order number. We will arrange for collection on an agreed day. Once the goods arrive back in our warehouse and they have been checked as in the condition they left us we will refund you less 15% of the product value. We won’t even charge you for the collection. Now it doesn’t get any better than that.

European Returns
Customers outside of the UK and Ireland are covered by the damages Returns policy above. If you want to return your goods due to the fact that you no longer want it you simply email us on and let us know. You will then need to return your goods to the following address and once it arrives back to us in the condition it left us we will refund you less the 15% restocking charge.

The address for European Returns is:
Quickcrop Ltd – Unit 13 Block A, Flurrybridge Business Park, Lower Foughill Road, Newry, Northern Ireland BT358SQ

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Treble Bay Easy Access Timber Composter
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