6mm Composite Decking Locking Clips (Pack of 10)
Designed to work alongside Cladco T‑clips, these composite decking locking clips help secure Signature and ProDeck boards for improved stability. Each pack includes 10 clips and screws, reducing seasonal movement and ensuring a long‑lasting decking installation.
About Our 6mm Composite Decking Locking Clips
These 6mm composite decking locking clips are designed to be used alongside T‑clips when installing ProDeck and Signature composite decking boards. They act as a stabilising support clip that helps to secure each board centrally while the remaining joists are fixed using the appropriate fixing system.
Alongside T-clips, the locking clips help minimise board movement and maintain correct alignment and spacing, particularly during changing weather conditions. Use of these clips in combination with T‑clip fixings is suitable for both ProDeck and Signature decking installations.
Manufactured from durable stainless steel with a black finish, these clips reduce the risk of boards shifting due to seasonal expansion and contraction. Installed correctly, they reinforce the overall structure and help deliver a professional‑standard finish that remains stable over time.
Clip Specifications
- Clip length: 20mm
- Clip width: 15mm
- Clip height: 9mm
- Screw length: 40mm
- Material: Stainless steel
- Finish: Black
- Quantity: 10 clips and screws per pack
Installation Guidance
Use one locking clip per decking board, fixed centrally into the middle joist, in line with the centre of the board. On all remaining joists, secure the board using T‑clips for the rest of the run.
Do not over‑screw, as this may cause the clip to deform. Always install in conjunction with correct board gaps and joist spacing to allow for natural movement. Unsure about fitting? See the appropriate installation guide for more detailed advice.
Store clips in a dry, covered area and keep them in their original packaging until required on site.
Please note: These locking clips can be used alongside T-clips, but are not compatible with our hidden clips due to the size of the fixings, and the finished gap said fixing leaves
Looking for an alternative?
For T-clips, see our composite decking T-clip fixings and screws.
For ProDeck fixings, see our ProDeck T-clips and screws.
Or browse our trims and fixings department for composite decking fixings and more.
Order A Sample Pack!
Download our printable installation guide (1).
Click here to view the online installation guide (1).
Download the datasheet for 6mm Composite Decking Locking Clips (Pack of 10)
| Type | When? | Cost? | ||
|---|---|---|---|---|
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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 | |
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Millboard Delivery | Orders under £2,000 | Est. 5 working days* | £192.00 |
| Orders over £2,000 | Est. 5 working days* | FREE | ||
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Parcelforce Standard | (Small Parcels) | 3-5 working days* | £10.30 |
| (Large Parcels) | 3-5 working days* | £31.80 | ||
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Sample Packs via Courier | 5 working days* | FREE | |
*Please allow for public holidays and weekends (non-delivery days)
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:
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.
Our Okehampton HQ and Warehouses (Devon)
Our Andover Warehouses (Hampshire)
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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