Gorilla Netting
High-security perimeter netting with razor wire fencing at a correctional facility
Built Gorilla Strong.®

Security Perimeter Netting Systems

Security perimeter netting is the facility-grade barrier Gorilla Netting designs and installs around correctional and high-security sites to stop unauthorized access and toss-over paths. Turnkey: assessment, stamped engineering where required, poles and anchorage, hang.

  • 5-year warranty
  • Fully insured
  • Self-performing crews
  • 20+ years installing
  • US and international

What is a Gorilla Netting Security Perimeter Netting System?

Gorilla Netting sizes mesh density, panel height, and cantilever extensions to your fence line, using high-tenacity polypropylene, nylon, or polyester with fire-retardant options where specifications require.

Each system is built to your facility's specific height requirements, with netting material and size options based on your needs and surrounding climate conditions. The netting is designed to withstand environmental conditions and potential threats.

For overhead yard coverage and integrated contraband prevention, see our contraband netting page.

Security perimeter netting on wood poles along the fence line at CoreCivic McRae Correctional Facility
CoreCivic McRae Correctional Facility.

What security perimeter netting stops

The primary purpose is to deter or prevent the delivery of contraband by:

  • Contraband delivered by perimeter fence toss-overs
  • Other launch methods, such as potato guns, slingshots, or sports balls

Correctional Facility Netting

Security perimeter netting for jails, prisons, and detention campuses adds vertical and overhead barriers that deter toss-overs and launch methods along the fence line. Completed perimeter work includes CoreCivic McRae, Northeast Ohio Correctional Center (NEOCC), CoreCivic Wheeler, and Puerto Rico Department of Corrections.

Questions Facility Managers Ask

How does procurement work?
Share fence lengths, target heights, existing infrastructure, and site photos under your procurement process. We deliver scope-based quotes with stamped engineering documentation to support your bid or sole-source package.
Attach to existing fence or standalone poles?
Both. Many projects extend existing perimeter fence with overhead netting, cantilever arms, or vertical panels. Standalone wood or steel pole structures are available when the fence line cannot carry the added load or height.
Can you install in an active yard?
Yes. Our crews install under facility security protocols for active correctional environments: phased schedules, escorted access, and coordination with security staff throughout the install.
Perimeter netting following the fence line and patrol road at CoreCivic McRae Correctional Facility
Perimeter netting along the fence line at CoreCivic McRae.

The Growing Threat of Contraband

The methods used to bring contraband into secure facilities are becoming increasingly sophisticated, ranging from high-tech drone drop schemes to low-tech methods like tossing items over perimeter security fences.

Narcotics, phones, tobacco, and weapons are often hidden in bags or sports balls and thrown over fences, posing a significant threat to the security and safety of your facility.

Custom Netting System Options

Options to meet your facility's specific security requirements:

  • Netting extensions at the top or bottom of existing perimeter fence
  • Confidential material options available
  • Poles can be painted to blend with facility environment
  • Chemical and weather resistant
  • UV-treated for durability
  • Meets security standards

Why Choose Gorilla Netting for Your Security Perimeter Netting Needs?

Gorilla Netting has a background in working with law enforcement, giving us a critical understanding of security and attention to detail. Our leadership's experience in this field allows us to provide custom solutions that address the specific challenges faced by your facility.

With a focus on innovation and a commitment to using the best materials, we design each system to protect your facility from contraband toss-overs and other security threats. Our installations are built to stand the test of time, and our team works quickly, efficiently, and safely to install your netting system.

Perimeter netting on wood poles along the fence line at Northeast Ohio Correctional Center
Northeast Ohio Correctional Center.

What Security Perimeter Netting Costs

Every perimeter system is quoted on its scope. Call for a ballpark before you request a formal quote.

Security perimeter netting

Attached to existing perimeter fence or built as a standalone structure on wood or steel poles.

Wood or steel poles
Call for a ballpark

What moves the number

  • Fence line length
  • Target netting height
  • Attaching to existing fence or building standalone poles
  • Cantilever or fence-top extensions
  • Netting material and mesh specifications

Plan before you quote

Use the Gorilla Planner to explore layout and cost drivers for security perimeter netting before requesting a formal estimate.

Free guides

Get cost and spec clarity before you request a quote.

Prefer reading online? Visit Resources & Guides.

What Happens After You Call

Here's what a typical schedule looks like, from first call to final walkthrough.

  1. 01

    Site info and quote

    3 to 5 business days

    Send dimensions, photos, a site plan if available, and a description of the containment goal. Remote estimating from photos and plans is valid for most projects. A site visit isn't always required at the quote stage.

  2. 02

    Engineering review

    1 to 2 weeks

    Pole design, cable sizing, foundation specs, and wind-load documentation are finalized. Facilities requiring stamped drawings for permitting receive those as part of this deliverable.

  3. 03

    Material lead time

    2 to 4 weeks

    Standard knotless netting and galvanized cable are typically in the shorter range. Custom mesh specifications or specialty pole fabrication push toward the longer end.

  4. 04

    Installation

    3 to 7 days

    Most projects install in 3 to 7 days. Larger projects can take 2 weeks or more, and we set that schedule with you up front. We phase work around your operating schedule so you stay open where you can.

  5. 05

    Tensioning and walkthrough

    1 day

    Panels are tensioned to the span and load, then we walk the system with you, confirm the scope is complete, and hand over warranty sign-off. One phone number, one warranty.

Times vary with project size. Your schedule is confirmed with your quote.

A note on permitting

The owner or general contractor submits the permit application. We provide stamped engineering drawings to support that application. We don't handle permitting on behalf of owners, but we give you everything you need to move it through.

Security Perimeter Netting FAQ

What does security perimeter netting installation include?

Perimeter installs include height study for toss-over prevention, cantilever or fence-top extensions, high-tenacity polypropylene or nylon panels, attachment to existing fence or standalone poles, and installation under security protocols for active correctional facilities.

How does prison netting stop contraband toss-overs?

Prison netting and contraband netting systems add vertical and overhead barriers that block footballs, bags, and launch devices from clearing the fence line. Height, mesh density, and cantilever design are matched to your facility’s threat profile and local wind loads.

Do you install security perimeter netting nationwide?

Yes. Gorilla Netting installs contraband and perimeter netting for jails, prisons, and secured campuses across the United States and internationally, with experience in law-enforcement and correctional environments.

How can I get pricing for security perimeter netting?

Facility security teams should share fence lengths, target heights, existing infrastructure, and photos under your procurement process. Request a project quote at gorillanetting.com/get-quote or call 1-800-274-1079. Pricing is scope-based after we review site layout, heights, materials, and access, not a flat per-foot rate.

Fast 2-Step QuoteStep 1 of 2

Get a Security Perimeter Netting Quote

Share your facility perimeter details and location for a fast, custom quote.

No obligation

Rather talk it through first?

Call +1 (800) 274-1079