What Are Concrete Gravel Boards?

What Are Concrete Gravel Boards?

What Are Concrete Gravel Boards?

Concrete gravel boards are wooden, concrete, or composite boards, usually around 140-150mm in height. They’re positioned underneath your fence panels and sit on top of the ground to protect your fence against wet soil, debris, and insect damage.

Essentially, gravel boards are used to improve the lifespan of your fence.

By installing concrete gravel boards, you not only extend your fence’s life but also get the added benefit of preventing soil and debris from accumulating on the panels, which can lead to decay. Plus, as insects become less of a threat, you can enjoy your backyard without worry.

There are a few reasons why you might want to consider installing a gravel board system. For one, they can help to keep your fence looking newer and shinier for longer.

Additionally, gravel boards can help to protect your fence against wet soil, debris, and insect damage – meaning that your fence will last longer and be less likely to need repairs.

How Do You Lay Concrete Gravel Boards?

Laying concrete gravel boards can be tricky, but with the right tools and techniques, it can be a breeze.

  1. First, nail the cleat to the timber fence post at the desired depth from the face of the post. It is recommended 22mm, but this is entirely up to you.
  2. Next, nail the gravel board onto the face of the cleat. Make sure the board is level and flush with the top of the cleat, and then nail it in place using a couple of screws.
  3. Finally, the gravel board installation is complete.

Should Concrete Gravel Boards Touch The Ground?

No, concrete gravel boards should not touch the ground. Concrete gravel boards are a popular option for raised garden beds because they provide a stable base for plants and prevent water from pooling on the ground.

However, some people worry that the boards will touch the ground, which could lead to localized flooding or puddles.

The problem with contacting the ground can cause the boards to rot. If the concrete is damp, the boards can swell and break, leading to more water damage.

To prevent this from happening, you can try to elevate the boards above the ground by using bricks, rocks, or even a wooden frame. Alternatively, you could try using gravel specifically designed for raised garden beds, which is less likely to contact the ground and absorb water.


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