Traditional Birdsmouth Fencing (Knee Rail)
Birdsmouth fencing, often referred to as Knee Rail fencing, is the perfect solution for defining boundaries without obstructing views. Its low-profile design is a popular choice for commercial car parks, retail parks, and public walkways.
The name comes from the distinct “V” shape cut into the top of the post—the birdsmouth joint—which allows a square timber rail to sit securely at a 45-degree angle, creating a robust and aesthetically pleasing continuous rail.
Joint Style: 45-degree “V” Notch
Why choose Birdsmouth Fencing?
- Classic Aesthetic: The diamond orientation of the rail provides a premium, professional look for front gardens and driveways.
- Tanalised Protection: Pressure-treated to ensure resistance against rot and decay, essential for timber sitting close to ground level.
- Sturdy & Permanent: Heavy-duty square-sawn timber provides a solid barrier capable of withstanding high-traffic environments.
- Unobstructed Views: Effectively defines boundaries and prevents vehicle encroachment without blocking the landscape.
Installation & Components
We provide everything required for a professional setup, including precision-notched Birdsmouth Posts, high-quality Square Rails, and the essential metal Birdsmouth Straps and fixings to bolt the system securely.
Local supply & delivery
For over 25 years, 414 Fencing has been a trusted supplier across Harlow, Hertfordshire, and Essex. Whether for commercial car parks or domestic kerb appeal, we offer fast delivery from our Stanstead Abbotts yard.