What Are The Different Types Of Security Turnstiles? How Do They Work?

A turnstile is a type of gate designed to control and monitor pedestrian access to a secure area. You’ll typically find them at entrances to buildings, facilities, and event spaces where it’s important to manage foot traffic and restrict entry to authorised individuals.

As security and compliance demands have increased across commercial, industrial, and public sector environments, turnstile systems have become a preferred choice for managing who can come in and when.

From warehouses and data centres to leisure facilities and transport hubs, organisations are turning to turnstile access control to strengthen perimeter security while keeping operations running smoothly.

In this article, we’ll explain what a turnstile is, explore the different types available, break down how each one works, and help you determine the best solution for your site.

What Is a Security Turnstile?

Core Purpose and Functionality

A security turnstile is a gate mechanism that controls the flow of pedestrians in and out of a secure area. It acts as a physical checkpoint, allowing only one person through at a time, and only when they’ve been granted permission via an access control system, such as a fob, swipe card, keypad, or biometric scan.

Turnstiles don’t just manage the flow of people; they actively help prevent tailgating and unauthorised entry.

By restricting access to one person per valid entry, they create a secure barrier that’s ideal for both monitored and unmanned entrances. Whether used at reception, a staff-only corridor, or a secure facility perimeter, they form a crucial part of your wider access control strategy.

Types of Security Turnstiles

Full Height Turnstiles

Full height turnstiles provide the highest level of physical security for pedestrian access. These rotating barriers extend from floor to ceiling, forming a secure cage-like structure that only allows one person through at a time.

We typically install them at perimeter points where access must be tightly controlled, such as stadiums, utility sites, data centres, and other high-risk or unmanned locations.

Because they fully restrict the space, they’re highly effective in preventing tailgating or forced entry. If you’re looking for a robust solution that acts as a secure pedestrian gate, full height turnstiles are the ideal option.

Half Height Turnstiles

Half height turnstiles are more compact and approachable, sitting at waist level. They offer a sleek, professional solution for managing foot traffic in monitored settings such as reception areas, gyms, or staff-only entrances.

These systems guide users through in a controlled, one-at-a-time motion, and work seamlessly with access credentials like cards or keypads. While they don’t offer the same physical barrier as full height models, they’re well suited to supervised environments where flow and speed are just as important as access control.

Swing Gates and Pedestrian Gates

Where accessibility or goods transport is required, we often pair turnstiles with swing or pedestrian gates. These gates operate manually or via access control, such as keypads or swipe cards, and provide an alternative route for wheelchair users, pushchairs, or deliveries.

You’ll usually see them in places like schools, leisure centres, and office buildings, where maintaining access for all users is essential. Installed alongside standard turnstiles, they help ensure your entrance remains secure without compromising convenience or compliance.

Optical and Speed Gates

Optical or speed gates use infrared sensors and fast-acting barriers, or sometimes no physical barrier at all, to control access. These systems are designed for speed and efficiency, with the ability to process high footfall without causing bottlenecks.

We recommend them for corporate offices, high-end commercial premises, or data centres where fast but secure entry is key. These gates integrate easily with biometric scanners, access cards, or QR codes, making them a modern solution for environments that balance security with user experience.

How Turnstile Security Systems Work

Access Control Integration

At BID Group, we design every turnstile installation to integrate seamlessly with your chosen access control system. That could include RFID cards, biometric scanners, QR codes, keypads, or even intercom systems.

When a user presents valid credentials, the turnstile unlocks, allowing one person to enter. If the access is denied, the barrier remains locked. This simple but effective system ensures only authorised individuals gain entry to your premises.

Physical and Sensor Mechanisms

Different types of turnstiles use different mechanisms to control access. Mechanical turnstiles, like full or half height models, use rotating arms to physically block or allow movement. Optical systems, on the other hand, rely on sensors to detect motion and trigger a barrier response.

Most of the systems we install also include built-in safety features. These may include pinch-point sensors, obstruction detection, or anti-tailgating alerts, all designed to keep users safe while ensuring your site stays secure.

Integration with Wider Site Security

Turnstiles don’t operate in isolation. We can link your turnstile system with wider site security infrastructure, such as CCTV cameras, intruder alarms, building access software, or time-and-attendance systems.

This level of integration gives you a comprehensive overview of who’s entering your site, when, and under what authorisation. It helps strengthen your security protocols and improves both accountability and operational control.

Benefits of Security Turnstile Gates

Improved Site Security

Turnstiles offer a reliable way to control pedestrian access and maintain a secure perimeter around your premises. By allowing only one person through at a time, and only when authorised, they make it much harder for anyone to tailgate or enter without permission.

We install turnstiles as part of a wider security solution that helps you keep track of who’s entering your site and when, improving both safety and accountability across the board.

Efficient Traffic Management

Turnstile gates help manage the flow of foot traffic in busy areas. By guiding individuals through a single, clearly defined access point, they reduce confusion and prevent crowding, particularly at peak entry times like shift changes or event openings.

Whether installed in a warehouse, gym, school, or corporate office, our systems make day-to-day operations smoother and more predictable for both visitors and staff.

Supports Compliance and Health & Safety

In many industries, access control isn’t just about convenience, it’s about compliance. Our turnstiles can help ensure only approved individuals enter secure or restricted areas, which supports your site’s safeguarding policies, GDPR protocols, and health and safety requirements.

From keeping students safe in educational settings to controlling visitor access at secure facilities, we design each system to meet your regulatory obligations as well as your operational needs.

Choosing the Right Turnstile for Your Site

Assessing Entry Type and Throughput

When choosing a security turnstile, we start by understanding how your site operates. High-traffic entrances, such as those at stadiums or distribution hubs, typically require full-height turnstiles or speed gates that can handle continuous use.

In contrast, low-traffic or monitored entry points may be better suited to half-height models or swing gates.

We also consider whether the access point is staffed or unstaffed. This affects whether you need a physical barrier for full access control or a lighter-touch solution that works alongside on-site personnel.

Indoor vs Outdoor Installation

Your environment plays a big role in the type of turnstile we recommend. For outdoor installations, we use weatherproofed materials and reinforced structures to ensure long-term durability, especially in exposed locations.

Indoor turnstiles, on the other hand, can prioritise aesthetics and speed, with compact designs ideal for reception areas, leisure facilities, and internal staff entrances. Whatever your needs, we’ll configure a solution that’s fit for purpose and built to last.

BID Group’s End-to-End Service

From initial planning to long-term maintenance, we take care of every stage of your turnstile installation. We’ll carry out a full site survey to assess your layout and entry requirements, before recommending a tailored solution that integrates with your existing systems.

Once installed, our nationwide engineers provide ongoing servicing and technical support to keep everything running smoothly, so you can focus on running your business with confidence.

Request a free consultation with BID Group

Turnstile Security Gates FAQs

What are turnstiles used for?

Turnstiles are used to manage and restrict pedestrian access, helping to ensure that only authorised individuals can enter secure or monitored areas. They’re commonly found in places like warehouses, stadiums, leisure facilities, and office buildings.

What are the different types of turnstiles?

The most common types include full height turnstiles, which offer maximum physical security, and half height turnstiles, which are better suited to monitored internal areas. We also install swing gates for accessibility and high-speed optical gates for fast-moving environments like corporate offices or transport hubs.

How does a turnstile access control system work?

Turnstiles work in tandem with access control systems such as RFID cards, fobs, keypads, or biometric scanners. When a valid credential is presented, the mechanism unlocks, allowing controlled entry. This system can also be linked to wider site security infrastructure like CCTV or visitor management systems.

Are turnstiles secure?

Yes, particularly when they’re installed correctly and integrated with access control. Full height turnstiles act as a robust physical barrier, while sensor-equipped speed gates can detect tailgating. We tailor each system to meet your security requirements and usage patterns.

Can turnstiles be used in outdoor environments?

Absolutely. We supply full height turnstiles designed specifically for outdoor use. These are built from weather-resistant materials and are ideal for securing perimeter access to sites like depots, utility facilities, and stadiums.

Does BID Group install turnstile security gates?

Yes, we provide a full end-to-end service across the UK. From planning and installation to integration with access control and ongoing maintenance, we ensure your turnstile system is reliable, compliant, and tailored to your site.