Description
Internal Corner Trim for Fortex Cladding
The Internal Corner Trim provides a neat, colour-matched finish where two Fortex-clad walls meet at an internal 90-degree corner. Its two-part design covers the cut board edges and installation fixings, giving the completed cladding a clean and professional appearance.
This genuine Freefoam trim is suitable for domestic, commercial and renovation projects. It can be used around internal wall returns, recessed entrances, alcoves, dormers and other areas where two clad surfaces meet at an inward-facing corner.
Delivery & Collection
Special-order product with an estimated lead time of 1–2 weeks. Available via Local North East Delivery or Store Collection only.
How the Internal Corner Trim Works
First, fix the rear section of the trim to suitable supporting battens before installing the cladding. The Fortex boards are then cut and positioned inside each side of the profile. Once the boards are secure, the colour-matched front section clips into place. As a result, the cut edges and installation fixings remain hidden.
The two-part construction also makes it easier to fit the boards accurately. There is no need to slide a complete 3m corner profile over the ends of the installed cladding.
Features and Benefits
- Genuine Freefoam Fortex cladding accessory
- Designed for internal 90-degree cladding corners
- Two-part clip-together construction
- Covers cut board edges and installation fixings
- Creates a neat, colour-matched corner finish
- Smooth PVC surface finish
- Suitable for horizontal and vertical installations
- Compatible with Fortex embossed cladding boards
- Durable and low-maintenance PVC-U construction
- Suitable for refurbishment and new-build projects
- Supplied as one 3m length
Compatible Fortex Cladding
The trim is designed for use with Freefoam Fortex embossed cladding systems. These include Fortex Double Shiplap, Feather Edge and compatible Shadow Gap installations. Choose a trim colour that matches the selected boards for a consistent finish across the completed elevation.
The trim has a smooth surface rather than the embossed finish used on the main cladding boards. This creates a defined and tidy border around the corner without copying the wood-effect grain of the boards.
Internal Corner Trim Specification
- Manufacturer: Freefoam Building Products
- Range: Fortex
- Product: Two-part internal corner trim
- Manufacturer range code: FC307E3
- Length: 3 metres
- Corner type: Internal 90-degree corner
- Material: PVC-U
- Surface: Smooth finish
- Installation: Rear fixing profile with clip-on cover
- Manufacturer pack quantity: 5 lengths
- TWS sale quantity: One 3m length
Installation Guidance
Provide suitable supporting battens at both sides of the internal corner. Fix the base section before installing the surrounding cladding boards. Allow the ventilation and expansion clearances stated in the Freefoam fitting instructions.
After fitting the boards, cut the front cover to the required length and clip it into the fixed base. Use suitable corrosion-resistant cladding screws throughout the installation. Finally, check that the cover is fully engaged along the entire corner.
Browse our Fortex cladding trims and accessories for matching edge trims, external corners, joint profiles and installation accessories.
For further technical and fitting information, visit the Freefoam FC307E3 Internal Corner Trim page.


















