Heavy Duty Triple Compost Bin
Heavy Duty Triple Compost Bin
SKU: NT-PF-COMB-HD-TRI-BLANot sure which colour? Order free samples · Questions? Speak to an expert
Product benefits
Why choose Grainex® composite
Up to 25-Year Warranty
The most comprehensive warranty available on UK composite products. Residential and commercial cover included.
Zero Maintenance
Never sand, paint, stain or treat. A simple wash with soapy water is all that's ever needed.
Anti-Slip Both Sides
Embossed grip texture on both board faces provides safe footing in wet conditions year-round.
Fade & Stain Resistant
UV-stabilised composite won't fade, splinter or rot. Resists mould, algae, oil and wine stains.
Weatherproof
Handles British frost, rain and UV without warping, cracking or delaminating.
Eco-Responsible
Made from recycled wood fibres and reclaimed plastics. FSC-certified. A sustainable timber alternative.
About this product
Heavy Duty Triple Compost Bin — three-bay recycled plastic composter
The Heavy Duty Triple Compost Bin gives you three bays to manage compost across multiple stages at once — fresh, maturing and ready-to-use — making it ideal for agricultural, community and large garden projects. Reinforced corners give it the strength to withstand heavy, continuous use.
Made in the UK from carefully selected recycled plastic and available in brown or black tones, it is weatherproof, splinter-free and extremely low maintenance. Removable front slats make loading and turning compost easy.
Key features
- Heavy duty three-bay compost bin with reinforced corners
- Removable front slats for easy access and multi-stage composting
- Long-lasting, weatherproof and extremely low maintenance
- Made in the UK from 100% recycled plastics
- 25-year commercial warranty · black or brown finish
Specifications
- Dimensions: 800mm x 750mm x 2400mm
- Weight: 221kg
- Material: 100% recycled plastic · finish: black or brown
Parts list
- 1 x pre-assembled right panel
- 1 x pre-assembled left panel
- 3 x pre-assembled back panel
- 2 x pre-assembled middle panel
- 3 x top tie
- 15 x removable slat
- 12 x M6 x 90mm bolt · 12 x washer · 12 x nut
- 6 x 70mm stainless steel screw
Delivery & warranty
Delivery: We offer an express (3-5 working day) and economy (7-10 working day) delivery service. Once your order has been picked, our logistics team will contact you to arrange a suitable delivery date and discuss any special requirements.
Warranty: Because of the high product quality and durability, we are able to offer a limited 25-year warranty for residential and commercial applications, covering material defects on recycled plastic furniture products.
Any questions?
We're happy to help with any technical or purchase enquiries. Please get in touch via our contact page.
Technical Specifications
| Product name | Heavy Duty Triple Compost Bin |
| SKU | NT-PF-COMB-HD-TRI-BLA |
| Material | Co-extruded composite (WPC) — recycled wood fibre & HDPE |
| Board length | 3.6m |
| Board width | 145mm |
| Board thickness | 25mm |
| Weight per board | approx. 6.2kg |
| Coverage per board | approx. 0.52m² |
| Core construction | Hollow twin-wall |
| Surface finish | Co-extruded cap both sides, anti-slip emboss |
| Minimum joist spacing | 400mm perpendicular / 300mm diagonal |
| Fire classification | Euroclass E |
| Residential warranty | Up to 25 years |
| Commercial warranty | 10 years |
Compare the Full Range
Find the right grade for your project and budget.
| Feature | Lite | Essential | Classic | Advanced | Deluxe |
|---|---|---|---|---|---|
| Price (from) | £19/board | £23/board | £28/board | £32/board | £38/board |
| Core | Single wall | Single wall | Hollow twin | Solid | Solid + cap |
| Co-extrusion | ✕ | ✕ | ✓ | ✓ | Premium |
| Colours available | 4 | 4 | 4 | 8 | 8 |
| Fade resistance | Good | Good | Very Good | Excellent | Superior |
| Residential warranty | 10 years | 15 years | 20 years | 25 years | 25 years |
| Best for | Budget builds | Standard decks | Mid-range | Quality finish | Premium projects |
Installation Guide
A professional-finish composite deck can be installed by a competent DIYer over a weekend.
Plan and measure your area
Mark out your deck area and calculate the total square meterage. Add 10–15% for cuts and wastage.
Prepare the sub-frame
Install pressure-treated C24 timber or aluminium joists on a firm, level base. Joist spacing must not exceed 400mm centre-to-centre for perpendicular boards, 300mm for diagonal laying.
Lay the first board
Start at the most visible edge or against the house wall. Allow a 5mm gap from any fixed structure. Use the supplied starter clips — slot into the board's groove and screw into each joist.
Continue laying boards
Press each board firmly into the previous clips, then add middle clips to the exposed groove. Check alignment every 3–4 boards. Stagger butt joints by at least 600mm across rows.
Cut and finish edges
Use a fine-tooth circular saw with the cut side face-up. Seal cut ends if the deck will be exposed to standing water at that edge.
Add trims and fascia
Finish exposed edges with matching fascia, corner trims, and skirting. Fit edge boards using stainless screws colour-matched to your boards.
Frequently asked questions
Also in this range
