A fence gravel board is an essential component in fencing, serving as a protective barrier at the base of your fence panels. It is a wooden or concrete board usually around 140mm in height that slots under your fence panels and sits on top of the ground to help protect the fence from wet ground, insect attack and debris (Source: 10-Jul-2019).
Understanding the Purpose of a Gravel Board
The primary function of a gravel board is to create a physical separation between the fence panel and the ground. This separation is crucial for prolonging the life and maintaining the integrity of your fence.
Key Characteristics and Functionality
- Height: Typically around 140mm, providing sufficient elevation for the fence panel.
- Placement: Designed to slot directly beneath fence panels and rest on the ground, or be secured between fence posts.
- Material: Commonly made from durable materials like treated timber (wood) or concrete, chosen for their resistance to moisture and pests.
Why Are Gravel Boards Important?
Gravel boards offer several significant benefits that contribute to the longevity and stability of a fence:
- Protection from Moisture: By lifting the main fence panel off the ground, gravel boards prevent direct contact with damp soil, standing water, and splashes. This significantly reduces the risk of wood rot and decay.
- Defense Against Pests: They act as a barrier against ground-dwelling insects and other pests that could otherwise infest and damage the fence panels.
- Prevention of Debris Accumulation: Gravel boards help prevent soil, leaves, and other garden debris from building up directly against the fence panel, which could trap moisture and accelerate deterioration.
- Enhanced Durability: They absorb the initial impact from lawnmowers, strimmers, and general garden activities, protecting the more delicate fence panels from damage.
- Ease of Replacement: In the event of damage or deterioration, a gravel board is much easier and more cost-effective to replace than an entire fence panel.
- Improved Aesthetics: They provide a neat and uniform finish to the base of the fence, contributing to a clean and professional appearance.
Types of Fence Gravel Boards
Gravel boards are primarily available in two main materials, each offering distinct advantages:
Wooden Gravel Boards
- Appearance: Often preferred for their natural look, which can seamlessly blend with wooden fence panels.
- Treatment: Usually pressure-treated to resist rot, fungal decay, and insect attack.
- Flexibility: Easier to cut and customize on-site.
Concrete Gravel Boards
- Durability: Highly resistant to moisture, rot, and insect damage, offering superior longevity.
- Strength: Provides robust support and stability at the base of the fence.
- Low Maintenance: Requires virtually no upkeep once installed.
Installation and Maintenance
Gravel boards are typically installed by slotting them into channels within fence posts or by securing them to the base of fence panels. While they are designed to be robust, occasional checks for signs of wear, particularly for wooden boards, can help ensure your fence remains well-protected for years to come.
In essence, a fence gravel board acts as the first line of defense for your fence, safeguarding it from the elements and extending its functional lifespan.