--- title: Sometimes a Fence is All You Need - Perimeter Security Design Principles description: The 5 Ds of Perimeter Security and Why They Matter image: https://blog.theseuspro.com/hubfs/PerimeterFenceScalingFail.gif --- [Skip to the main content.](https://blog.theseuspro.com/theseus-blog/5-ds-of-perimeter-security-fence-scaling-fail#main-content) [![TPS_finalLogo_hf_FC](https://blog.theseuspro.com/hs-fs/hubfs/TPS_finalLogo_hf_FC.png?width=3000&height=986&name=TPS_finalLogo_hf_FC.png "TPS_finalLogo_hf_FC")](https://theseuspro.com/) [![Theseus](https://blog.theseuspro.com/hs-fs/hubfs/TPS_finalLogo_hf_FC.png?width=300&height=99&name=TPS_finalLogo_hf_FC.png "Theseus")](https://theseuspro.com/) - [Home](https://theseuspro.com/) - Resources & Downloads - [Data Center Security Webinar (On-Demand)](https://theseuspro.com/top-physical-security-needs-for-data-centers-webinar-access) - [Data Center Security Guide (PDF)](https://theseuspro.com/top-physical-security-needs-for-data-centers) - [Healthcare Ring of Security Webinar (On-Demand)](https://theseuspro.com/healthcare-ring-of-security-webinar-access) - 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[Careers](https://theseuspro.com/contact-us-1) - Example Link - Example Link - Example Link [Facebook](https://blog.theseuspro.com/theseus-blog/5-ds-of-perimeter-security-fence-scaling-fail#0) [Instagram](https://blog.theseuspro.com/theseus-blog/5-ds-of-perimeter-security-fence-scaling-fail#0) [Linkedin](https://blog.theseuspro.com/theseus-blog/5-ds-of-perimeter-security-fence-scaling-fail#0) [X](https://blog.theseuspro.com/theseus-blog/5-ds-of-perimeter-security-fence-scaling-fail#0) [YouTube](https://blog.theseuspro.com/theseus-blog/5-ds-of-perimeter-security-fence-scaling-fail#0) [Medium](https://blog.theseuspro.com/theseus-blog/5-ds-of-perimeter-security-fence-scaling-fail#0) ##### About our VOSB Designation ![vosb_large](https://blog.theseuspro.com/hs-fs/hubfs/vosb_large.png?width=90&name=vosb_large.png) Veteran Owned Small Business (VOSB) is a company diversity registration designated under the Veteran Benefits, Health Care, and Information Technology Act of 2006 (Public Law 109-461). Registration ensures that companies qualify for preferential procurement for federal contracts if they are owned and controlled by Veterans. This certification is non-industry specific and requires that the firm meets the small business requirements established by the Small Business Administration (SBA). Additionally, it requires that the company is at least 51% owned, operated and controlled by a veteran. - Testing 1 - Sub Nav 1 - Sub Nav 2 - Testing 2 - Testing 3 ##### About Us - Testing 1 - Sub Nav 1 - Sub Nav 2 - Testing 2 - Testing 3 2 min read # Sometimes a Fence is All You Need - Perimeter Security Design Principles [![Picture of Theseus Team](https://blog.theseuspro.com/hs-fs/hubfs/Theseus%20Icon%20-%20transparent.png?width=30&name=Theseus%20Icon%20-%20transparent.png) Theseus Team](https://blog.theseuspro.com/theseus-blog/author/theseus-team) : Oct 11, 2024 10:25:25 AM [Security Solution Design](https://blog.theseuspro.com/theseus-blog/tag/security-solution-design) [Data Center](https://blog.theseuspro.com/theseus-blog/tag/data-center) ![](https://blog.theseuspro.com/hubfs/PerimeterFenceScalingFail.gif)   Sometimes it's just better to let the fence do its job!    There are fences surrounding more properties than you can count in your community alone, strategically working in conjunction with various electronic security devices such as security cameras, motion-sensor lights, microwave detection beams, and a host of other advanced measures. However, have you ever stopped to consider why these security measures are present on some properties and not on others? What determines the precise location of the fence? And who exactly makes these crucial decisions and for what reasons? Fortunately, security consultants have a key principle that they rigorously adhere to in order to address these very questions – the concept of the 5 Ds. These 5 Ds serve as the foundation for designing and implementing effective perimeter security measures that safeguard properties and ensure the utmost protection.   Curious to learn more about these vital principles? Look no further than Eric Moreau, an expert in security consultation. In an insightful clip from his on-demand webinar, Eric expertly lays out the 5 Ds, unraveling the mysteries behind the placement and selection of security measures. With his vast knowledge and experience, he sheds light on the decision-making process that goes into securing properties, opening the door to discussion about the intricate web of factors that determine the why, where, and how of fences and electronic security devices.   Remember, keeping maximum distance between bad actors and your valuable assets and personnel is crucial. Don't miss out on the opportunity to enhance your understanding of this concept by tuning into our informative on-demand webinar. Access the entire on-demand webinar [here >>](https://theseuspro.com/top-physical-security-needs-for-data-centers-webinar-access?__hstc=45788219.f9b5b5fdfa828f816f7403bbff6eed64.1705514417382.1705514417382.1705514417382.1&__hssc=45788219.1.1705514417382&__hsfp=1342182235) [![image-png-Jan-09-2024-09-39-11-2421-PM](https://blog.theseuspro.com/hs-fs/hubfs/image-png-Jan-09-2024-09-39-11-2421-PM.png?width=287&height=303&name=image-png-Jan-09-2024-09-39-11-2421-PM.png)](https://theseuspro.com/top-physical-security-needs-for-data-centers-webinar-access)     #### FREE: PHYSICAL SECURITY RISK ASSESSMENT CONSIDERATIONS GUIDE [![IN-HOUSE SECURITY RISK ASSESSMENT CONSIDERATIONS magazine cover](https://blog.theseuspro.com/hs-fs/hubfs/IN-HOUSE%20SECURITY%20RISK%20ASSESSMENT%20CONSIDERATIONS%20magazine%20cover.png?upscale=true&width=347&height=234&name=IN-HOUSE%20SECURITY%20RISK%20ASSESSMENT%20CONSIDERATIONS%20magazine%20cover.png)](https://blog.theseuspro.com/theseus-blog/download-our-free-in-house-security-risk-assessment-considerations-guide) We understand the challenges that security professionals face in securing their facilities and creating a safe environment within their budget. We also recognize the difficulty in finding the right resources and expert advice to achieve this mission. That's why we're excited to announce the release of our considerations guide, designed specifically to help security professionals conduct their own in-house security risk assessment. This comprehensive guide aims to assist you in identifying any missing or inadequate physical security measures that may compromise the safety and security of your assets, people, property, and critical business functions. While we highly recommend consulting with a third-party expert like Theseus Professional Services in certain cases, this guide will empower you to take a proactive approach to assess and address security risks within your organization. The findings of a security risk assessment play a vital role in measuring and communicating the level of risk to your organization. By following the guidelines outlined in this guide, you can enhance the overall security of your facility while staying within your budget. We believe that knowledge is power, and we're committed to providing you with valuable resources to help you achieve your security goals. Download our considerations guide today and take control of your facility's security. - Process Evaluation - Threats - Vulnerability Assessment Highlights - Electronic Security Systems Considerations - Site Considerations - Building Entrances and Exits - Common Functional Areas - Building Envelope - Utilities and Building Services - Building Systems [Download here >>](https://blog.theseuspro.com/theseus-blog/download-our-free-in-house-security-risk-assessment-considerations-guide) [![IN-HOUSE SECURITY RISK ASSESSMENT CONSIDERATIONS magazine cover](https://blog.theseuspro.com/hs-fs/hubfs/IN-HOUSE%20SECURITY%20RISK%20ASSESSMENT%20CONSIDERATIONS%20magazine%20cover.png?upscale=true&width=175&height=118&name=IN-HOUSE%20SECURITY%20RISK%20ASSESSMENT%20CONSIDERATIONS%20magazine%20cover.png)](https://blog.theseuspro.com/theseus-blog/download-our-free-in-house-security-risk-assessment-considerations-guide)           - [Tweet](https://twitter.com/share) ##### SERVICES SERVICES - [Security Engineering, Consulting, & Design](https://theseuspro.com/security-engineering-consulting) - [Quality Assurance](https://theseuspro.com/quality-assurance) ##### Featured Projects Featured Projects - [Healthcare](https://theseuspro.com/projects) - [Data Center](https://theseuspro.com/projects) - [Government](https://theseuspro.com/projects) - [Commercial](https://theseuspro.com/projects) ##### EXPERTISE EXPERTISE - [Access Control](https://theseuspro.com/technologies) - [Video Surveillance](https://theseuspro.com/technologies) - [Intrusion Detection](https://theseuspro.com/technologies) - [Perimeter Intrusion detection](https://theseuspro.com/technologies) - [Voice, Mass Communication, & Intercom](https://theseuspro.com/technologies) - [Physical Perimeter](https://theseuspro.com/technologies) - [CPTED](https://theseuspro.com/technologies) - [Lighting Considerations](https://theseuspro.com/technologies) - [Locking Hardware](https://theseuspro.com/technologies) ##### Recent Blog Recent Blog [Featured Blog Image](https://blog.theseuspro.com/theseus-blog/system-modernization-for-real-operations-my-field-guide-for-clients) ###### [System Modernization for Real Operations: My Field Guide for Clients](https://blog.theseuspro.com/theseus-blog/system-modernization-for-real-operations-my-field-guide-for-clients) By Eric Moreau, Partner at Theseus Professional Systems Modernizing a security program is not about... [![Theseus white transparent](https://blog.theseuspro.com/hubfs/Theseus%20white%20transparent.png)](https://www.theseuspro.com) - [Legal Information](https://theseuspro.com/legal-information) - [Privacy Policy](https://theseuspro.com/privacy) - [Terms of Use](https://theseuspro.com/terms-of-use) - [Cookie Policy](https://theseuspro.com/contact-us-0-0-0) © 2026 Theseus Professional Services, LLC [Facebook](https://www.facebook.com/TheseusPro)[Linkedin](https://www.linkedin.com/company/theseus-professional-services-llc)[YouTube](https://www.youtube.com/@TheseusProfessionalServices) Return to top ![](https://www.facebook.com/tr?id=5478791795538184&ev=PageView&noscript=1) ```json { "@context" : "https://schema.org", "@type" : "VideoObject", "contentUrl" : "https://22146785.fs1.hubspotusercontent-na1.net/hubfs/22146785/Perimeter%20Fence%20Scaling%20Fail.mp4", "dateModified" : "2024-10-11T14:23:19.266Z", "duration" : "PT11S", "height" : 522, "name" : "Perimeter Fence Scaling Fail", "thumbnailUrl" : "https://22146785.fs1.hubspotusercontent-na1.net/hubfs/22146785/Perimeter%20Fence%20Scaling%20Fail.mp4/medium.jpg?t=1728656599266", "uploadDate" : "2024-10-11T14:23:19.261Z", "width" : 932 } ``` ```json { "@context" : "https://schema.org", "@type" : "VideoObject", "contentUrl" : "https://22146785.fs1.hubspotusercontent-na1.net/hubfs/22146785/5Ds%20Teaser%202%20Final.mp4", "dateModified" : "2024-05-01T19:25:51.807Z", "duration" : "PT1M31.52S", "height" : 1080, "name" : "5Ds Teaser 2 Final", "thumbnailUrl" : "https://22146785.fs1.hubspotusercontent-na1.net/hubfs/22146785/5Ds%20Teaser%202%20Final.mp4/medium.jpg?t=1714591551807", "uploadDate" : "2024-05-01T19:25:51.800Z", "width" : 1920 } ``` ```json { "@context" : "https://schema.org", "@type" : "VideoObject", "contentUrl" : "https://22146785.fs1.hubspotusercontent-na1.net/hubfs/22146785/5Ds%20Teaser.mp4", "dateModified" : "2024-01-25T23:06:27.308Z", "duration" : "PT1M9.2S", "height" : 1080, "name" : "5Ds Teaser", "thumbnailUrl" : "https://22146785.fs1.hubspotusercontent-na1.net/hubfs/22146785/5Ds%20Teaser.mp4/medium.jpg?t=0", "uploadDate" : "2024-01-25T22:03:02.824Z", "width" : 1920 } ```