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How to Make a Fence Climb-Proof

Hello everyone, we are the Fenceshop team and today we want to talk to you about how to make a fence climb-proof. In this article, we will explore various solutions to improve the security of your fences, both for private and professional use.

The Climb-Proof Extension

The first product we want to talk about is a climb-proof extension. This accessory is made of iron in a triangular shape, plastic-coated in green, and with a thickness of 3 mm, which makes it very robust. The extension features three holes on the lower end, useful for threading horizontal tension wires. Additionally, it has an approximately 12 cm long insert that easily fits into posts with a section of 35x35 mm.

Technical Features and Uses

This extension is versatile and can be used both by private individuals to prevent pets like dogs from leaving the perimeter, and in professional settings such as military, airport, and industrial fences. It is perfect for those looking for an effective and easy-to-install security solution.

Installing the Extension

Installation is quick and easy. Simply insert the extension into the AT post, section 35x35 mm, and fix it with a self-tapping screw if necessary. Once fixed, tension wires can be threaded through the holes and, if desired, barbed wire or concertina can be laid to increase security.

Other Climb-Proof Systems

In addition to the extension, there are other solutions to make a fence climb-proof. Some manufacturers offer already bent posts, either inward or outward from the fence. However, these products are niche, have minimum sections of 40x40 mm or 50x50 mm, are quite expensive, and require a minimum order of 300 pieces, making them unsuitable for hobbyist or private use.

Alternative Supports

For those looking for more flexible alternatives, there are supports that can be applied on top of the posts. These supports allow for the choice of internal bends, external bends, or double bends (Y-shaped) and are ideal for airport fences. However, they require posts with sections of 40x40 mm or 50x50 mm and specific holes for installing the supports.

Materials and Costs

The supports are available both hot-dip galvanized and galvanized and plastic-coated. However, they have a high cost: for instance, the described support costs about 30 euros. Despite the price, they represent an elegant solution to make the fence climb-proof.

DIY Solutions

For those who are handy, there is a DIY solution to make a fence climb-proof. You can cut the T-post on the edge, bend it into the desired shape, and, if necessary, weld it back. This solution is economical and can be achieved with tools like a disc grinder or a band saw. However, it requires some experience and manual skills.


We hope this information has been helpful in understanding how to make a fence climb-proof. If you have further questions or need assistance, do not hesitate to contact us. We invite you to visit our institutional website and our e-commerce to discover all our products. Thank you for your attention and see you next time!

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