Product description
Product Code: CG-CO36CR
CMC Corrosion Resistant 3.6m Main Runner – Class D Suspended Ceiling Grid
The CMC Corrosion Resistant 3.6m Main Runner forms the primary structural framework of the CMC Class D suspended ceiling grid system. Designed for use in aggressive and high-humidity environments, this enhanced corrosion resistant component delivers long-term durability where standard grid systems may rust or deteriorate.
Manufactured to exacting performance standards, this 24mm grid system provides both structural strength and resistance against moisture, chlorine exposure and chemical vapours — making it ideal for specialist commercial applications.
Do not mix and match grid brands. If you are installing CMC suspended ceiling grid, all main runners, cross tees and perimeter trims must be CMC corrosion resistant components to ensure correct interlocking, structural integrity and long-term corrosion protection.
Key Features
- Length: 3.6 metres
- Face Width: 24mm (T24)
- Finish: Enhanced Corrosion Resistant
- Quantity Supplied: Box of 15 Lengths
- Reaction to Fire: A1 (Non-Combustible)
- Corrosion Class: D
- Extra galvanised with double-sided protective coating
- Designed for harsh environments including swimming pools and commercial kitchens
Technical Information
- System Type: Exposed Suspended Ceiling Grid (T24)
- Environmental Rating: Class D
- Fire Classification: A1
- Typical Use: Main structural framework member
- Compatibility: CMC Corrosion Resistant Grid System Only
Complete Your Ceiling Grid System
To complete your installation, ensure all components are CMC corrosion resistant compatible.
Browse Suspended Ceiling Grid Systems
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Ceiling Tiles suitable for high-humidity and specialist environments.
Frequently Asked Questions
What is Corrosion Class D?
Class D is a high corrosion resistance rating suitable for environments exposed to constant humidity, chlorine or chemical vapours such as swimming pools and commercial kitchens.
Is this suitable for swimming pool ceilings?
Yes. This corrosion resistant main runner is specifically designed for high-moisture and aggressive environments.
What does A1 fire classification mean?
A1 indicates the product is non-combustible and meets the highest European fire performance classification.
Can I mix corrosion resistant grid with standard grid?
No. Corrosion resistant components must only be installed with matching CMC corrosion resistant components to maintain system durability and performance.






