Which of the following heights of fence deters only casual trespassers?

The correct answer is A. 3 to 4 feet. Physical security standards categorize fence heights by the level of deterrence they provide. A fence of 3 to 4 feet in height is low enough that a determined person can easily step over or climb it, so it deters only casual or opportunistic trespassers who are not motivated to…

Security Architecture & Engineering

Question

Options

A3 to 4 feet
B2 to 2.5 feet
C8 feet
D6 to 7 feet

How the community answered

(31 responses)

A
87% (27)
B
3% (1)
C
6% (2)
D
3% (1)

Explanation

Physical security standards categorize fence heights by the level of deterrence they provide. A fence of 3 to 4 feet in height is low enough that a determined person can easily step over or climb it, so it deters only casual or opportunistic trespassers who are not motivated to breach the perimeter. Fences of 6 to 7 feet are difficult to climb and deter most intruders. An 8-foot fence (often topped with barbed wire or other enhancements) is used for high-security perimeters. The 3-4 foot range is the recognized standard for minimal/casual trespasser deterrence in security certifications such as CISSP and Security+.

Topics

#physical security#fence height#perimeter control#physical barriers

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