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What is Razor Wire?

Mary McMahon
By
Updated May 17, 2024
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Razor wire is a type of fencing usually used in security applications, or to prevent extremely stubborn livestock from escaping. It is similar to barbed wire in construction, but features sharp razor like shapes cut from steel tape, rather than barbs. Although the words “razor wire” conjure up an image of fencing festooned with razors, the name is actually taken from an early brand name, “Razor Ribbon,” which was used to distinguish the fencing from barbed wire.

Manufacture of razor wire began in the First World War, when several German companies realized that cutting steel tape with dies was cheaper and more efficient than making barbed wire. This early product was called razor tape, and was actually weaker and easier to pass through than barbed wire, as a set of shears could quickly cut through it. In the 1980s, razor wire with a reinforced core of steel wire began to be offered. This type of razor wire is made by crimping razor tape onto the wire core.

While razor wire comes in large coils designed to be installed in strung lines, it is more commonly seen in the form of concertina wire. Concertina wire is wire which stays coiled, making it more difficult to pass over or through. The coils range in size, and are designed to pack down flat, making concertina wire ideal for military applications. When a length of wire is needed, it can be quickly pulled out, and the coils can be left tight or more loosely arranged, depending on how much of a deterrent needs to be created.

Typically, razor wire is used to top security fences. An unprepared individual attempting to get into or out of a secured area will have difficulty getting around razor wire, especially if the concertina configuration is used. Commonly, security fences are also curved, to make climbing even more difficult, and determined security companies may also electrify the wire. It is also used on livestock fences, as some livestock will crash through barbed wire fencing, but not razor wire.

In a contest with razor wire, an unprepared and unprotected individual will probably emerge with painful cuts and scratches. However, it is possible to get over razor wire, with the assistance of protective clothing, shears, and pads to lay over the razor wire. Many militaries train their soldiers in how to deal with razor wire and barbed wire, so that they do not become trapped on the battlefield.

About Mechanics is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Mary McMahon
By Mary McMahon

Ever since she began contributing to the site several years ago, Mary has embraced the exciting challenge of being a About Mechanics researcher and writer. Mary has a liberal arts degree from Goddard College and spends her free time reading, cooking, and exploring the great outdoors.

Discussion Comments
By anon291280 — On Sep 13, 2012

How long is the life span of razor coil in different environmental conditions. How long before rust will be visible.

By jmanthn — On Oct 27, 2010

What type of PPE should be worn when installing razor wire other than designated gloves? Thank you.

By anon112344 — On Sep 20, 2010

i like the article. it has really shed some light on the subject.

By rajl — On May 07, 2009

We are removing razor wire (coiled) and I want to know any special precautions?

By anon15216 — On Jul 05, 2008

Can you suggest some method(s) of unravelling and reusing Razor Ribbon?

Mary McMahon
Mary McMahon

Ever since she began contributing to the site several years ago, Mary has embraced the exciting challenge of being a...

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