Accurate Bollard Dimensions: Avoid the Pitfalls of Poor Installation

Are you trying to figure out the correct bollard dimensions for your project?
Wondering how the size affects safety, functionality, or aesthetics?
Or maybe you’re worried about making a costly mistake because of incorrect sizing?

Trust me, I get it. Bollard dimensions are a bigger deal than most people realize.
Get it right, and you have a solid foundation for durability, safety, and design.
Get it wrong, and you could face a range of issues — from functional failures to expensive fixes.

So, let us dive in and cover everything you need to know.

Before we get into the dimensions, let us make sure we are all on the same page.

Bollards are those sturdy posts you see used for traffic control, security, or guiding pedestrians.
They serve various purposes, like protecting buildings, vehicles, and even people from accidents.

But here’s the catch: the size of bollards matters just as much as their placement.
Get the bollard dimensions right, and you are set for safety and longevity.
Get them wrong, and you are asking for trouble.

When it comes to bollards, size is not just about aesthetics.
A bollard’s dimensions directly affect its effectiveness, safety, and usability.
From controlling traffic flow to preventing property damage, the right size makes all the difference.

Let us break down what you need to consider when sizing bollards for your project.

• Typical Heights: Most bollards range from 800mm to 1,500mm tall.
• Choosing the Right Height: If you need to deter vehicles, go higher (around 1,200mm to 1,500mm).
• Pedestrian Areas: For guiding foot traffic, you can use bollards that are around 1,000mm tall.
• Design Aesthetic: The height also depends on the look you want — shorter bollards can feel more subtle, while taller ones make a bold statement.

• Standard Diameter: Most bollards have a diameter of 150mm to 200mm.
• Larger Diameters for Impact Resistance: If your bollard needs to absorb heavy impact, go for a larger diameter (200mm+).
• Smaller Diameters for Decorative Use: Decorative bollards typically have a smaller diameter (100mm to 150mm).

The base size determines how sturdy your bollard will be.

• Wider Bases = More Stability: A wider base ensures the bollard can withstand impacts without tipping over.
• Narrower Bases: These might be used for aesthetic purposes but could be prone to damage in high-traffic areas.

• Thickness for Security: A thicker wall adds strength, making the bollard more resistant to damage.
• Standard Thickness: For most applications, you’ll see a wall thickness of around 5mm to 8mm.
• Larger Thickness for Impact Protection: If you’re worried about vehicle collisions, opt for thicker walls.

The material you choose for your bollard also affects its size.
Let’s talk about a few popular materials and their typical dimensions.

• Weight and Size: Concrete bollards tend to be larger in size, with diameters of 250mm to 300mm.
• Height Range: Concrete bollards usually range from 1,000mm to 1,500mm tall.
• Strength: The heavier the bollard, the more impact-resistant it is.

• Steel for Security: Steel bollards are often used for high-security areas.
• Typical Sizes: Expect diameters between 150mm and 200mm, with heights ranging from 800mm to 1,500mm.
• Custom Steel Bollards: Steel bollards can also be custom-sized for specific security needs.

• Lightweight and Flexible: Plastic bollards are lighter but are often used in non-collision scenarios.
• Sizing: They usually have a smaller diameter of around 100mm to 150mm.
• Height Range: The heights of plastic bollards typically fall between 800mm and 1,000mm.

Understanding the dimensions of your bollards is essential, but how do you actually pick the right size for your needs?

If you’re installing bollards to control vehicles, think about how much traffic the area will get.

• High Traffic Areas: Bigger, more robust bollards are needed to handle heavy vehicles.
• Low Traffic Areas: You can go for smaller bollards or ones designed more for aesthetics than security.

• Pedestrian Safety: If pedestrians are the focus, choose bollards that are tall and sturdy enough to stop errant vehicles.
• Building Protection: For protecting property, you’ll want strong bollards that can take the brunt of impacts.

Think about where the bollards will be placed.

• Urban Areas: You may need taller, more durable bollards to handle vehicles that might veer off course.
• Rural Locations: You might be able to use smaller, decorative bollards.

Even the best bollard dimensions will not do you any good if you do not install them correctly.

• Proper Depth: The depth of the hole is as important as the bollard’s size.
• Concrete Base: Bollards with a concrete foundation are less likely to shift over time.

Check your bollards every so often to make sure they are not being damaged.

• Check for Wear and Tear: Over time, even well-installed bollards can weaken, especially in high-impact areas.
• Repair or Replace: If you see cracks or damage, it might be time to replace or reinforce the bollard.

Make sure your bollards do not block paths for disabled access.

• Consider Space Between Bollards: Ensure there is enough room for wheelchairs or prams to get through.

The size and design of the bollards should complement the area.

• Larger Areas: For wider streets or large public spaces, bigger bollards might be more fitting.
• Smaller Spaces: For narrow areas consider smaller bollards that will not overwhelm the design.

Bollards are long-term investments.
Choosing the right dimensions from the start ensures that your bollards will stand up to the test of time.

• Material Matters: Choose materials that hold up well in the specific environment (steel for strength, concrete for impact).
• Size for the Job: Always size your bollards for their intended function, whether that is security, traffic control, or aesthetics.

When choosing the right bollard dimensions, you cannot afford to guess.
Understanding the correct sizes is essential for both safety and functionality.
With the right height, diameter, and material, your bollards will serve their purpose and stand the test of time.

So, make sure you take the time to get your bollard dimensions spot on.
Get it right from the start, and you will not have to worry about costly repairs down the line.

And remember, the right bollard dimensions aren’t just about measurements — they’re about protecting people and property.