Understanding the true cost of anti-ram perimeter security fencing
Purchasing an anti-ram perimeter security fence system is only half the financial battle in securing a property’s border against vehicle-borne attacks—the cost of installation still looms. Contractors, architects, and owners can realize significant savings by looking beyond the initial purchase price of the fence system and exploring the steps, materials, and equipment necessary to complete the project.
Extensive amounts of hardware, intermediate posts, wire rope, and concrete are all requirements of traditional cable-based fence systems driving up the total project cost and lengthening the construction schedule.
Ross Technology’s XL-501 Post and Beam Fence eliminates these components to cut installation costs nearly in half while providing crash-tested certification to ASTM F2656, Standard Test Method for Crash Testing of Vehicle Security Barriers, with a M50-P1 rating.
Added costs of installing cable-based fence systems
Over a 1000-m (3280-ft) span, cable-based fence systems can include up to 20 anchor posts and 380 line posts, which support multiple runs of cable. With up to 400 post holes in just a 1000-m stretch, the cost of materials and labor hours begins to add up quickly, considering each hole requires auguring, concrete fill, and a rebar cage.
To effectively prevent vehicles from penetrating the fence, spools of cable must be run in multiple lines—sometimes up to eight—through line posts and anchor posts in time-consuming fashion. The whole system also requires a significant amount of hardware to maintain its safety standards, using cable clamps and nuts to tension each cable.
Further, the maintenance and work is not finished when the cable-based fence install is complete. Cables must be checked and re-tensioned periodically to adjust tensioning and maintain the fence’s ability to prevent vehicle penetration.
All this work is above and beyond what is needed to install the XL-501 Post and Beam Fence.
XL-501 as a solution to installation woes
Ross Technology’s solution to the anti-ram fence installation dilemma is straightforward—simplicity in design.
Vertical anchor posts are spaced 9.1 m (30 ft) apart and connected by a single tubular beam fabricated with patented technology that absorbs the energy of a crash as opposed to relying on multiple runs of wire rope and the line posts that support them. The result is 110 posts in a 1000-m span, versus the 400 posts used with a cable-based fence system. This is nearly 75 percent fewer holes to dig—and that is before factoring in the different-sized holes, and the time it takes to switch back and forth between auger bit sizes.
While the rebar cage must be priced and built separately with a cable-based fence system, Ross Technology includes rebar sticks in every proposal. To install, contractors simply insert the rebar into predrilled holes in the anchor posts. The XL-501 Post and Beam Fence is the only anti-ram fence system that does not require additional rebar—no extra expenses or extra labor to build elaborate cages.
Additionally, Ross’ Post and Beam fence has been engineered to be extremely simple and efficient in terms of the hardware used and the effort required for construction. In fact, each fence section is made up of a surprisingly small number of components—two posts, one beam, one nut, and one bolt per post to secure the assembly, and a top cap to protect it.
The time-saving design, ultimately, leads to abundant savings.
Big savings: Benefits of the XL-501 Post and Beam Fence
Digging 75 percent fewer post holes speaks for itself, but the XL-501 Post and Beam Fence directly saves time and labor costs in several other ways:
- no time is spent building rebar cages;
- post hole foundations are 457 mm (18 in.) shallower than cable-based anchor posts, and require less concrete; and
- installing a single beam, connected by one nut and one bolt on each post, is easier than requiring multiple runs of cable and a pile of hardware.
This simplicity in installation, coupled with high crash-test standards, led to the XL-501 Post and Beam Fence being specified to protect a Saudi Aramco facility—the world’s largest oil and gas company. The Saudi Aramco crew installed the post and beam fence at a rate of 1000 m per week with a relatively small crew— this is a process that is two to three times faster than installing a cable-based fence system.
“Installation of the XL-501 Post and Beam Fence saved us a tremendous amount of time—at least 50 percent versus other fence systems,” says Peter Saroufim at BRC Industrial (Saudi) Ltd., in Jeddah, Saudi Arabia. “There is less excavation and less concrete to use. The whole process is much simpler, and you’re left with a product that does an exceptional job of protecting a perimeter and will not need any maintenance once it’s installed.”
The Ross XL-501 Fence is ideal for:
- high-threat facilities where the entire perimeter necessitates anti-ram defense;
- access control points (alongside vehicle barriers to increase the level of protection for adjacent areas also vulnerable to vehicle impact);
- perimeters with minimal setbacks where immediate stopping power is critical;
- urban and corporate settings where visual appeal is an important consideration; and
- upgrades for existing fencing (chain link, ornamental, and other natural barriers can easily be upgraded to meet higher threat requirements).
Potential high-risk facilities suitable for XL-501 fence include:
- embassies and government sites;
- commercial buildings;
- stadiums and arenas;
- mass transportation;
- data centers;
- oil and gas refineries;
- chemical plants;
- utility stations; and
- military bases.
Integrating fence protection for complete perimeter security
The Ross XL-501 Post & Beam Fence Gate is engineered to integrate seamlessly with the Ross XT-4200 Anti-Ram Gate to create a turnkey perimeter security solution. Its extra-wide design allows the XT-4200 gate to maintain integrated protection with the XL-501 fence by providing gate protection for two-lane entrances.
In addition to the anti-ram fence and gate, Ross Technology designs and manufactures a complete line of crash-tested perimeter security solutions that go beyond providing simple traffic control and security to address the threat of vehicle-borne attacks.
These products include:
- fixed and portable wedge barriers;
- gates and fences;
- active bollards; and
- passive bollards.
About Ross Technology
Ross Technology manufactures a diverse line of physical security and public safety solutions that protect people, property, and products in a wide range of applications, including antiterrorism/force protection, Occupational Safety and Health Administration (OSHA) compliance, and industrial storage. Based in Leola, Pennsylvania, the company supports construction and capital improvement projects throughout the world. For more information, visit www.rosstechnology.com.
All information listed in this section was submitted by Ross Technology.
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