Timber Knee Rail Fencing is a robust timber-based structure crafted using the “birdsmouth” jointing technique. This fencing style typically features securely positioned horizontal rails supported by vertical posts, also recognised within the industry as birdsmouth, ascot or diamond fencing.
The term 'Knee Rail' finds its origin in its design, strategically placed at a low height around knee level, serving to demarcate an area without impeding sightlines. The birdsmouth joint is a notch or cut at the end of the timber that fits tightly onto the post. It strengthens the structure by increasing the contact area between the rails and posts.
Strong and Stable Construction – Built using the traditional birdsmouth joint, ensuring excellent strength and stability between posts and rails.
Aesthetic and Functional Design – Maintains open sightlines while clearly defining pedestrian or landscaped areas.
Durable, Treated Timber – Pressure-treated for long-lasting resistance against rot, decay, and weathering.
Galvanised Steel Fixings – Supplied with optional galvanised post straps for corrosion resistance and long service life.
Choice of Sizes and Components – Rails in 1.8m or 3.6m lengths, with 75mm or 100mm sections; posts in 0.9m or 1.2m heights.
Multiple Strap Options – Choose from Bishop’s Hat, V-style, or Shoe-style straps to suit different rail sizes.
Low Maintenance – Requires only occasional inspection and staining to retain its appearance.
Quick and Easy to Install – Simple component-based design allows for efficient on-site assembly.
We have the perfect Knee Rail components for your fencing project! Choose from 1.8m or 3.6m rails in both 75mm x 75mm and 100mm x 100mm widths. Our 100mm x 100mm posts come in 0.9m or 1.2m heights to match your rail selection.
Plus, we offer three post strap styles: Bishop's Hat for 100mm top rails, V-style or Shoe-style for 75mm top rails. With this variety, you can easily build a knee rail fence that's perfectly customised to your needs.
Its versatility allows for application across diverse settings such as car parks, pathways, and walkways. Due to its height, this is not a security product; however, it efficiently defines boundaries, discourages trespassing on grass or flower beds, and manages designated parking spaces. Its cost-effectiveness makes it ideal in public settings where stringent security measures aren't paramount.
Durable, decay-resistant timber predominantly shapes this fencing style, rendering it particularly suitable for outdoor installations. To assemble, use top rails, birdsmouth posts, and galvanised straps. Galvanised straps come in straight or 'Bishop's Hat' style. Use nails to make a strong and long-lasting connection between the timber posts and rails. All these products are available from First Fence.
A major upside of timber knee rail is its minimal upkeep. With just periodic inspections and occasional stain touch-ups, it boasts a long lifespan, saving you time and effort in the long run.
Timber Knee Rail Fencing is commonly used across:
Car parks – for defining parking bays and guiding vehicle movement
Pathways and walkways – to safely direct pedestrians
Landscaped areas – to protect grass, flower beds, or decorative features
Public spaces – to create soft boundaries without introducing barriers
Although not designed for security, its presence effectively discourages access to restricted zones, helping maintain order and protecting landscaped environments.
Please note that our timber knee rails do not meet the specifications for highway use
Beyond knee rail, we offer a diverse range of timber fencing solutions to meet your specific needs. Whether you're seeking practicality or traditional charm, we have something for you:
Post and rail systems are versatile and useful for keeping animals, marking boundaries, and improving gardens. Their ease of installation makes them a popular choice for DIY enthusiasts.
Traditional Timber Panels: Add a touch of timeless elegance with our collection of pre-made panels. Choose from various styles and sizes and find the perfect match for your project. We also provide all the necessary accessories, like concrete or timber posts and gravel boards, for a seamless installation.
Explore our full range of timber fencing and discover the perfect solution for your space!
For more info on our timber knee rail fencing, contact our sales team at 01283 512 111 or sales@firstfence.co.uk. We are available on our live chat as well.