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Recycled Plastic Joist, 50mm x 125mm x 3m length, Black

£42.80
(3)

Manufactured using 100% recycled plastics, these 50mm x 125mm joists are a high-quality, robust and durable product that is easy to handle during installation. Plastic joists will ensure your garden decking is well supported and structurally sound. Available in 3m lengths to fit specific decking subframe requirements.

SKU: PLAS5012530BL

delivery NATIONAL DELIVERY - checking... from £0.00
ANDOVER COLLECTION
OKEHAMPTON COLLECTION
Total Price: £42.80 inc VAT
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Details

Discover Our 100% Recycled 3m Plastic Joists

A sturdy base is crucial for any quality decking build. Properly installed, structurally sound, and secure joists are essential for long-lasting decking boards.

Our plastic joists are made from 100% recycled end-user plastics, for a robust and high-quality decking joist. These black joists can be installed underneath Nordeck, Millboard®, timber or composite decking boards.

Joist specifications

  • Length: 3m
  • Width: 125mm
  • Height: 50mm
  • Colour: black

To make these joists, the plastics are melted down, shaped into moulds and cooled to form strong and heavy-duty support battens. Not only do they offer eco-friendliness through recycling but also come with a 20-year warranty.

Other benefits include

  • Greater strength compared to timber.
  • Manufactured in the UK.
  • Eco-friendly, lasting alternative to timber.
  • Suitable for installation on grass, concrete, or uneven terrain.
  • Compatible with multiple decking boards
  • Resistant to splintering and rot.
  • No need for varnish, treatment, or sanding
  • Virtually maintenance-free.
  • Simple to install, recycled plastic joists can be cut to custom sizes using traditional hand tools, ensuring a seamless fit for your decking project regardless of its shape or size.

Looking for a longer plastic post?

See our 3.6m recycled plastic joist, 50mm x 100mm

Looking for another size?

See our 3m recycled plastic joist, 100mm x 100mm

Or browse our recycled joist department for decking frames and more…

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Samples plus minus

Order A Sample Pack!

The best way to choose your preferred colour is with our Sample Packs. Order Sample Packs
Specifications plus minus
Weight
8.00kg
Technical Information plus minus

pdf Download the datasheet for Recycled Plastic Joist, 50mm x 125mm x 3m length, Black

Technical Image 1 Technical Image 2
Delivery plus minus
Type When? Cost?
National Delivery Orders under £1,000 Est. 5 working days*
Roofing items 7-10 working days*
£192.00
Orders over £1,000 Est. 5 working days*
Roofing items 7-10 working days*
£96.00
Orders over £1,500 Est. 5 working days*
Roofing items 7-10 working days*
FREE
Scotland Delivery Postcodes: PA, PH, DD, AB, IV, & KW Est. 15 working days*
Roofing items 7-10 working days*
£360.00

Millboard Delivery Orders under £2,000 Est. 5 working days* £192.00
Orders over £2,000 Est. 5 working days* FREE

Parcelforce Standard (Small Parcels) 3-5 working days* £8.50
Parcelforce Standard (Large Parcels) 3-5 working days* £30.00

Sample Packs via Courier 5 working days* FREE

*Please allow for public holidays and weekends (non-delivery days) 

Collection plus minus

Some of our products are available for collection from our warehouses in Okehampton (Devon) and Andover (Hampshire) - This option will show at checkout, when available.

Standard collection lead time is 3-5 working days, this may vary depending on the product. If you would like to collect your order after 2 hours, please choose this option at checkout.

Please note that collections are only available from Monday-Friday, 08:00 - 17:00 & Saturday, 08:00 - 12:30 (Note: this IS the cut off time for collections, despite our closing time of 13:00)

Please Note The Following Prior To Collection:

No Cutting On Site

PPE/Hi-Vis Must be Worn At All Times

AlL Visitors Must Report to Reception


Vehicles we can and cannot load

Cladco Profiles will only load flatbed lorries and flatbed trailers for insurance purposes. If the appropriate vehicle is not available, two people would be required for a collection.

Cladco Profiles will NOT load any vehicles with roof racks, horse boxes, cattle lorries or fixed-sided trailers. Cladco Profiles has the right to refuse loading a vehicle for any reason.

Before arranging a collection, please read our Customer Collection Notice below.

Okehampton

Our Okehampton HQ and Warehouses (Devon)

Hampshire

Our Andover Warehouses (Hampshire)

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Customer Collection Notice

Please ensure you have pre-booked your collection slot before travelling to site.

When arriving to collect your order, please report to a member of our Warehouse Team who will register your arrival and locate your goods. Once ready, your items will be picked and brought to your vehicle loading area.

During busy periods, there may be a short wait while our yard team assist other customers or complete other loading tasks. We always do our best to work within your booked collection time.

We respectfully draw your attention to the following important points:

  • Loading is ultimately the customer’s responsibility. While our team can assist with mechanical loading using forklifts, we cannot handball items into enclosed vehicles. Customers must ensure their vehicle is suitable and that goods are safely loaded and adequately secured before leaving the premises.
  • Sharp sheeting, metal goods, and long/heavy items may pose additional handling risks. Please come prepared with high-quality protective gloves, and any appropriate protection materials to avoid damage to your vehicle or restraints (e.g. ropes or straps). The edges of roofing sheets and metal products can be extremely sharp, and care should be taken when handling.
  • We strongly recommend that customers bring their own straps, ropes, or other securing materials, as we are unable to provide these at the point of collection.
  • If you are unsure of your vehicle’s load capacity, we can advise the approximate weight of your order in advance. It is your responsibility to ensure your vehicle is suitable for transporting the goods safely and legally.
  • Cladco will not be held liable for any damage to your vehicle or goods once they have been loaded and leave our premises. Loading assistance is provided entirely at the customer’s own risk.

Click & Collect – Pre-Booking Required

You are welcome to collect your order from either our Okehampton (Devon) or Andover (Hampshire) site. All collections must be pre-booked in advance so your items can be picked, packed and ready for you.

Please do not travel to site without a confirmed collection time, as we cannot guarantee your order will be available.

Once your items are ready, you will receive an email with a link to book your collection slot. Please note, same-day collections are not available and bookings must be made at least two hours in advance.

When you arrive, please bring your order confirmation and follow the signage to the collection area where a member of our team will assist you.

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Frequently Asked Questions
Yes, Cladco recycled plastic joists are designed to be compatible with all our decking ranges, including Signature composite, ProDeck, Nordeck, Millboard®, bamboo, and timber. They provide a strong, long-lasting, and low-maintenance subframe option that will not rot, warp, or splinter. This makes them an ideal choice for creating a stable and durable base, regardless of which type of Cladco decking you choose.
Our recycled plastic joists have a 20-year warranty to give you peace of mind that your decking boards are built on a solid and long-lasting foundation.
They can be installed on various surfaces, including grass, concrete, and uneven terrain.  
We recommend using pilot holes for any screws. Some self-drilling screws may work without pilot holes, but effectiveness can vary depending on the brand. Carpenter’s Mate and Timco screws work best in our experience. For installations involving long chains of profiles (e.g. joists in boardwalks), we recommend using coach bolts. Holes should be drilled 3mm oversized in these cases to allow for thermal expansion and contraction.

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Reviews
Customer Reviews
5 Based on 3 reviews
Long-lasting and sturdy

Price

Quality

Value

Super strong and easy to work with! Cutting was simple and it's great that it's an eco-conscious product.
Worth the investment

Price

Quality

Value

I used these under my Millboard decking and they worked great in my sloped back garden. They are a tad heavy but they're so easy to cut so it doesn't affect the installation time.
So little maintenance

Price

Quality

Value

The rot and splinter resistance means no ongoing maintenance, which is a huge win.
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