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All wood plastic composite (WPC) products will contract and expand subject to the current ambient temperature. Therefore, during the installation of your composite fencing, you must ensure to add space between the fence boards and the fence posts. 

The gap between the composite fence boards and posts will allow for expansion and contraction. Correct spacing of your composite fencing during installation will prevent the fencing from warping or splitting as it expands when the outdoor temperature rises. 

Do Composite Fencing Panels Need Space?

Why Composite Fencing Requires Gaps

Composite fencing material is affected by a change in ambient temperature. What this implies is that fluctuating temperatures will affect your composite fence after installation. The way fluctuating temperatures affect composite materials is different from how it affects wood fencing. 

Composite materials are durable, strong and able to withstand the toughest conditions that Mother Nature will place upon them. Instead of your composite fencing cracking or splintering when the temperature changes, it will expand. This can be easily managed by adding space or expansion gaps between the fencing panels and the fence posts.

By not adding space or expanding gaps between the composite fencing panels, they will expand and touch one another. The pressure the fence panels place on each other when they touch can cause them to splinter or warp. Worse still, it may even dislodge the panels out of place.

What Is the Right Space for Composite Fencing?

When installing your composite fencing panels, follow the best practices outlined by the manufacturer. The correct space or expansion gap between the fence panels and the fence posts will allow for expansion, we recommend that you leave a minimum of a 5mm gap.

Do Composite Fencing Panels Need Space?

Note that the space between your composite fence panels should not be smaller than 5mm. A space smaller than 5mm may not be enough for your composite fencing panels when expansion occurs. In addition, the space between your composite fencing panels and the fence posts should not be too broad.

If you leave a space of more than 10mm, the space will be too obvious. Objects such as leaves, or pollen will accumulate between the gaps if they are too wide. 

Conclusion

During the installation of composite fencing, leave a minimum expansion gap of 5mm between the fence panels and the fence posts. This will allow the panels to expand when the temperature changes to prevent them from warping or splitting.

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