Some functionality on this website does not support Internet Explorer.For the best experience, please try another browser such as Microsoft Edge, Google Chrome or Mozilla Firefox.
Begin Your Aluminium Decking Project With Our Aluminium Joists
Creating the supportive foundation for your aluminium decking boards is vital to ensure a high-quality finished product. Cladco aluminium joists will enable you to correctly install your decking boards upon a secure and supportive substructure.
These Joists can also be installed as a supportive substructure for timber and composite decking installations as well as aluminium boards.
Manufactured from high-quality powder-coated aluminium, these joists are 4m in length and are available in black only. Due to the joists being concealed beneath the decking boards, they have no need to be colour-matched to the boards themselves.
These joists have an A2 fire rating alongside an S1 non-combustible rating and so can be installed in living spaces that are more than 18m high. Before carrying out any installation, ensure you have checked all information with your building regulator and contractor prior to purchase.
Sample packs are sent via Courier and delivered within 3-5 working days.
Pricing Table
TYPE
WHEN?
HOW MUCH?
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
Postcodes: PA, PH, DD, AB, IV, & KW
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
£8.50
Parcelforce Standard (Large Parcels)
3-5 working days
£30.00
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.
Are the aluminium decking Joists available in multiple colours?
No, these boards are only available in black - the colour of the joist does not need to match the decking boards as they will not be visible in the foundations of the deck.
What are the dimensions of the decking joists?
They are 4m in length, 50mm wide and 50mm thick. They also weigh approximately 4.04kg.
Can Cladco aluminium joists be used with other decking materials?
Yes. While ideal for aluminium decking, these joists are also suitable for supporting timber or composite decking boards, offering versatility across different project types.
Do the joists require any specific installation tools?
Standard tools are generally sufficient. For best results, refer to our official aluminium decking installation guide and always use the recommended fixings and accessories suited to your decking type.