The UK's most affordable, high-quality decking board

4m Composite Joists/Batten

73% of 100

About this product

Use Cladco 4m Composite Joists/Batten as composite joists for decking or use them as composite battens for exterior wall cladding. They're made from the same composite material as our Decking and Cladding Boards and are perfecty combined as composite decking joists and composite cladding battens.
Total Price: £11.88 Inc VAT
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4m Composite Joists/Batten

4m Composite Joists/Batten
4m Composite Joists/Batten Everything you need to know about Cladco Composite Joists and Structural Composite Joists

Online Decking Calculator

Use our calculator to work out how many boards and fixings you need for your project.


About Our 4m Composite Joists/Battens

Bring your composite decking or cladding project to life with our 4m Composite Joists/Battens. As a vital component to your decking or cladding design, Cladco Composite Joists/Battens provide adequate support for boards to be installed onto.

They're perfect as joists for composite decking and provide a weather-resistant base. Additionally, you may use them as battens for composite cladding - installed vertically or horizontally according to your design. 

Joist Specification
Length: 4m
Width: 50mm
Height: 30mm
Weight per Joist (approx.): 5.16kg

Cladco Composite Joists/Battens are supplied in a Charcoal colour. Each joist should be spaced no more than a maximum of 400mm apart for decking. When applied as battens for wall cladding, they should be spaced no more than a maximum of 500mm apart.

We recommend, as a rule of thumb, purchasing one joist for every square metre of decking.

We highly recommend that for decking projects, joists are used in conjunction with a hard concrete base. This ensures the supporting substructure is sturdy and reliable for the rest of your project. 

*Cladco Composite products are available as FSC® Certified for the same cost. If you require FSC® Certified products, please ask for these when placing your order.

Please note: These 30x50mm Composite Joists are not structural and will need to be supported along their entire length on any decking or cladding installation.

Please note: Images are used for illustration purposes only. Actual item may vary slightly from the image above.


Please click on the variable options on our checkout page.

Cladco offer a Nationwide delivery service (UK Mainland) We offer a range of options, please see the table below.

Useful Links: Delivery Policy | Collection Policy


Delivery is estimated 5 working days (1 week).


Collection from our Okehampton or Andover warehouse. Please note we need 2 hour notice.

Sample Packs

Sample packs are sent via Courier and delivered within 3-5 working days.

Pricing Table

National Delivery (Orders under £1,000) Estimated 5 working days* £192.00
(Orders over £1,000) Estimated 5 working days* £96.00
(Orders over £1,500) Estimated 5 working days* FREE
Scotland Delivery Estimated 15 working days* £360.00
Millboard Delivery (Orders under £2,000) Estimated 5 working days* £192.00
(Orders over £2,000) Estimated 5 working days* FREE
Parcelforce Standard
(Small Parcels)
3-5 Working Days £5.99
Parcelforce Standard
(Large Parcels)
3-5 working days £24.99
Sample Packs 5 Working Days FREE
*Please allow for public holidays and weekends (non-delivery days)

When your goods are delivered these are sometimes delivered on a pallet with the necessary associated packaging to ensure they arrive with you in the best possible condition. We view the pallet and packaging as necessary for the protection of the goods and therefore will be a part of what is delivered to you. It is your responsibility to dispose of these items in a responsible manner when appropriate.

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