Ryno
DS75C 3.6m Aluminium Decking Joist Substructure - 75mm x 48mm - Mill Finish
DS75C 3.6m Aluminium Decking Joist Substructure - 75mm x 48mm - Mill Finish
SKU:55.0001
Est Delivery between 6th Feb and
12th Feb.

Add £400£480 to your overall order to unlock FREE delivery.
How much will I need?
We recommend adding 10% of additional product to the calculation to account for errors, damages, and obstacles in your project
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Product Information
Introducing the DS75C 3.6m Aluminium Decking Joist Substructure – a premium, non-combustible aluminium support joist specifically designed to enhance the stability and durability of Ryno decking systems. Measuring at 75mm x 48mm with a mill finish, this joist substructure is the ideal foundation for creating a safe and enduring outdoor living space.
Crafted from high-grade Aluminium alloy 6063 – T6, the DS75C joist combines incredible strength with lightweight properties, making it easy to handle and install. It is designed to support various Ryno systems, ensuring compatibility with a wide range of applications. Whether securing to decking pedestals or cleats, this joist provides a robust and reliable support structure that is engineered to last.
This joist substructure is engineered to withstand the rigors of outdoor environments. It is resistant to moulds, algae, alkali, bitumen, and UV, ensuring long-term performance without the degradation commonly associated with other materials. With an allowable load of uniformly distributed >4.0kN/m^2 and a concentrated load of 2kN, the DS75C is capable of supporting significant weight, making it suitable for a wide range of outdoor decking projects.
Compatible with ADC, RD-FR, RDA-C, RDF, RDC supports, the DS75C 3.6m Aluminium Decking Joist Substructure offers a comprehensive solution for your decking needs, providing a strong, durable, and fire-safe foundation for your outdoor spaces. Whether for commercial or residential use, this joist substructure represents the pinnacle of decking support technology, ensuring your deck remains safe, stable, and beautiful for years to come.
Technical Specifications
Brand | Ryno |
Length | 3.6m |
Material type | Aluminium Alloy 6063 |
Width | 48mm |
Datasheets
Delivery Information
Est Delivery between 6th Feb and
12th Feb.


Delivery will always take place on a weekday (Mon - Fri excl. public holidays).
An exact delivery charge will be calculated at checkout based on your order and location.
Frequently asked questions
How do I track my order?
As soon as your order is dispatched, you'll receive a dispatch email with delivery dates and details for your order.
If you require an update on your order, you can email customerservice@i4lgroup.co.uk with your order number for assistance.
Can I order now and pay later?
Yes, we offer a variety of flexible payment options to all our customers.
When checking out online, you'll be able to avail of multiple buy now, pay later options with Klarna or PayPal.
The flexible payment options available to you at checkout will be based on the total value of your order.
For B2B customers, you can apply for a 30-day trade credit account, and you'll also unlock:
- Dedicated trade pricing
- Loyalty points and rewards
- A dedicated account manager
Do you really have the best prices online?
Yes! We even have a price match guarantee.
We are so confident that we have the best prices out there that we will match the price of any other online or local retailer.
If you find the same product cheaper elsewhere, we will match the price — just send us the quote or website link.
Read more: Price Match Guarantee
I have a large-scale project, can I get a quote?
Yes, if you are carrying out a construction project that requires a large quantity of materials, email sales@i4lgroup.co.uk with the following information and we will get back to you with your very own bespoke price quote:
- Delivery postcode and address
- Mobile number
- Company name
- A list of required materials and their quantities
Learn more on opening a trade account.
Can I open a trade account?
Yes! Trade customers can open a B2B account to unlock bespoke pricing, B2B discounts, trade credit, loyalty points, and a dedicated personal account manager.
You can learn more here: Open a Trade Account
Can I cancel or amend my order after placing it?
Yes, if your order has not yet been processed for dispatch, cancellation/ amendments should be possible.
Our team works quickly to get your order delivered as soon as possible so it is likely that your order will be processed for dispatch within 2-3 hours of purchase.
Contact us immediately via customerservice@i4lgroup.co.uk or call 020-3481-1978 during opening hours.
If you wish to amend your order after it has been processed by our team, it will be treated as a return or a separate new order.
Read more: Returns
What is your returns policy?
Changed your mind about your order? no problem! we offer a 14 day returns period after your order is delivered.
To avail of this your order must be unused, in its original packaging, and suitable for resale.
Refunds are issued immediately after the goods are received and inspected by our team.
If an item arrives damaged or incorrect, you must notify us within 48 hours of delivery.
Prior approval is needed before returning any goods – do not return without authorization.
Special order items are exempt from returns.
Read more: Returns