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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 Noel
on July 16th, 2019
The instructions delivered with the wood differs a bit from the ones on the web page. Which ones should I follow?
Answered by Niall
on July 17th, 2019
Hi Noel Sorry about that. I will talk to the warehouse to see what they are sending out. The instructions on the website are the most up to date Niall Quickcrop
Asked By Mary
on May 26th, 2019
Want to put composter against block wall. Is the easiest way to do this to attach back panels to posts before installing all against wall ?
Answered by Niall
on May 27th, 2019
Hi Mary Yes. That is probably the easiest way however you can build the complete unit without the front and with 3 people lift it in to position as well. This might be easier structurally to do Niall Quickcrop
Asked By Micheal D Looney
on March 19th, 2019
Is the wood pressure treated? How long on average will it last?
Answered by Niall
on March 19th, 2019
Hi Micheal Yes the wood is treated. These units will last 8/10 years maybe longer. I have one up now for over 8 years and it doesn't look like it is going anywhere anytime soon Niall Quickcrop
Asked By Ian
on March 17th, 2019
How do I order the 12ft version, I can only see the 9ft version on the website?
Answered by Niall
on March 18th, 2019
Hi Ian Each of the bays are 3ft wide so the treble bay is 9ft. I am not sure what has you thinking it is available in 12ft however we could give you 4 bays to make up your 12ft Regards Niall Quickcrop
Asked By Danny Farragher
on March 02nd, 2019
Regarding the query about the larger composter shown in your youtube video, is that correct that the 12ft version is cheaper than the 9ft version you are offering as standard
Answered by Niall
on March 04th, 2019
Hi Danny No. The 12ft starts at 295 and the 9ft is 195 Regards Niall Quickcrop
Asked By Johanna Mc Donald Steenkist
on October 14th, 2015
How much would the larger unit as seen in your you- tube cost, they look fantastic, love the brackets. Regards
Answered by Andrew
on October 14th, 2015
The larger one is €249.

Quickcrop European deliveries

All Standard Quickcrop Deliveries only €3.95, heavy goods deliveries only €9.95.

All our deliveries are only €3.95 no matter how many products we deliver anywhere in Ireland. For heavy items like ponds or furniture we charge only €9.95 per complete order. We also deliver to the UK and other European countries, please see our delivery rates below. Our flat delivery rate is an absolute bargain and is far cheaper than any of our competitors, please take this into account when comparing product prices.


Quickcrop Deliveries

Heavy goods deliveries
For heavy furniture or pond deliveries we charge an extra €5.00 to our standard delivery rate. Our rates below are our standard rates, please add €5.00 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 island of Ireland, the U.K., Austria, Benelux Countries, France, Germany and Switzerland. Please see our delivery rates below:

€3.95 - The Island of Ireland

€12.95 - The United Kingdom (Highlands and Islands may incur a surcharge, please contact us on 353 1524 0884 for details)

€14.95 - Austria, Belguim, The Netherlands, Luxembourg, Denmark, France, Germany, Switzerland.

How long does it take?
Stock permitting we aim to dispatch your goods within 2 working days of receiving your order. The average time taken from order to delivery is 2 - 3 days for Irish and UK orders, and up to 8 working days for other European destinations.

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.

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 01 524 0884 and we will arrange collection and refund or replacement of faulty or damaged goods.

If you wish to return goods for any reason other than damaged or faulty items please return the item to us at the following address and we will organise a refund. Goods must be undamaged and in their original packaging. Please take care when parceling returned goods to ensure it reaches us in good condition.

Our returns address is: Quickcrop ltd., Unit 4, Ballymote Industrial Estate, Ballymote, Co.Sligo.


If you are unsure about any aspect of our delivery service we're always delighted to take your call in the office on: 01 524 0884

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Treble Bay Easy Access Timber Composter
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