Turnstile Gate Selection Guide: Types, Sizing and Specs

Most pedestrian access projects do not fail because the gate was badly built. They fail at the planning stage: the lane type does not match the way people actually arrive, the passage is too narrow for the bags and trolleys that pass through it every day, or an array of lanes is sized for the average hour instead of the morning peak. By the time the gates arrive on site, changing any of those decisions is expensive.

This guide is written for the stage before a quotation. It covers the form factors you will see in a real tender, how to calculate the number of lanes a site needs, what passage width and accessible lanes require, how credentials and building systems connect to the gate, and what to send a factory so that the equipment you receive matches the entrance you are building.

What a turnstile lane actually does

A turnstile or speed gate enforces one passage per valid credential. A card reader, QR scanner, face terminal, ticket reader or push button sends a dry-contact signal to the gate controller; the controller releases the barrier for exactly one person and relocks it. That single behaviour — one credential, one passage — is what separates a turnstile from a door with a reader on the wall.

Three characteristics follow from it, and they matter more than the shape of the barrier:

• Throughput per lane. Because each person must be validated and cleared before the next passage is released, the lane has a measurable capacity. That number, not the product photo, determines how many lanes you buy.
• Tailgating resistance. A physical barrier plus infrared or optical detection gives you control over whether a second person can follow an authorised user. The level of that control is a specification decision, not an accessory.
• Integration. The gate is the last device in a chain that starts at your access control platform. If the interface is wrong, the lane is a prop.

Everything else — finish, materials, lighting, voice prompts — is how the lane looks and how it feels to use. Those choices matter for the building, but they should be made after the three above.

The six lane types you will see in a tender

Almost every pedestrian access specification is built from a small set of form factors. Knowing where each one belongs prevents the most common error: buying high-security hardware for a lobby, or a lobby-grade gate for an unmanned perimeter.

Tripod turnstile (waist-high, three arms)

The classic rotating three-arm gate. Simple mechanics, small footprint, tolerant of heavy public use, and the most economical way to enforce one-person-at-a-time entry. Passage is by rotation, so it is slower than a motorised lane and not comfortable for wheelchairs, luggage or trolleys. It belongs at staff entrances, sports venues, factories, schools and secondary entrances where the traffic is constant but the security requirement is ordinary.

Full-height turnstile

A floor-to-ceiling rotating cage. This is the only form factor that physically resists climbing over and crawling under, so it is the standard choice for unmanned perimeters, labour accommodation, substations, depots and industrial sites. It is slower per passage and takes more floor space, and an accessible lane must be provided beside it.

Swing gate

Two swinging panels that open flat to create a wide, welcoming passage. The widest clear opening among motorised pedestrian lanes — our swing gate is specified with a passage of 550–1200 mm — which makes it the natural choice where wheelchairs, pushchairs, trolleys or bicycles must pass. It is common in office receptions, hospitals, hotels and VIP lanes.

Wing gate (retractable wing barrier)

Panels that retract into the cabinet rather than swinging outward, so the lane footprint stays compact even when the passage is wide. Our wing gate covers the same 550–1200 mm passage range and is normally specified where the entrance is tight but the passage still has to be generous.

Speed gate / high-speed access gate

Motorised glass or acrylic panels with fast opening and closing, a slim cabinet and a clean appearance. This is the form factor for high-traffic, high-image entrances: metro and station concourses, corporate lobbies, banks and stadiums. Our high-speed access gate is specified at 30–45 persons per minute with a 550–900 mm passage, which is why it is usually paired with a separate wide lane for accessible and bulky traffic.

Optical lane (no physical barrier)

Infrared beams and indicator lights only, with alarm on unauthorised passage. Attractive and very fast, but it deters rather than blocks, so it suits staffed lobbies with a visible guard or reception point — not an unmanned perimeter.

For a head-to-head on the two form factors most often compared in lobbies and stations, see our guide to speed gates versus turnstiles.

Match the lane type to the site

Use the table below as a first pass, then confirm with throughput numbers and site conditions. It reflects the way pedestrian access is normally specified in tenders, and it is deliberately conservative: an unmanned entrance should never rely on a form factor that can be stepped over.

Site type	Typical lane choice	Why
Corporate office lobby	Speed gate or wing gate, with one wide swing lane	High throughput, clean appearance, low tolerance for queues at 9 a.m.
Metro / station concourse	High-speed access gates in a multi-lane array	Highest passage rate per lane; ticket, QR and card readers in one bank
Factory or staff entrance	Tripod turnstile, or swing gate for shift-change waves	Continuous traffic, robust mechanics, straightforward attendance integration
School or university	Swing gate at the main gate, tripod in secondary buildings	Bags and equipment need width; supervising staff are present
Hospital or clinic	Wide swing lane for wheelchairs and bed traffic	Accessibility is a design requirement, not an option
Data centre or utility site	Full-height turnstile, plus a wide accessible lane	Unmanned perimeter, physical resistance is the requirement
Parking lobby / paid area	Speed gate or swing lane with ticket or QR reader	Payment validation per person, high walk-up rate
Community or residential gate beside a vehicle barrier	Swing lane paired with the vehicle lane	Residents carry bags and children; see pedestrian access beside a barrier gate

Throughput: how many lanes does the entrance need?

Count the people, not the doors. The number that sizes a pedestrian lane array is the peak arrival rate — the busiest 10 to 15 minutes of the day, not the daily total.

1. Count the peak. A factory with 900 staff starting a shift over 20 minutes needs to clear about 45 people per minute at that entrance. A 600-person office arriving between 08:30 and 09:15 needs roughly 15–20 people per minute, with most of it inside three or four minutes.
2. Apply the lane rate, then derate it. Published passage rates are measured with a credential that works every time and a queue that moves perfectly. Our wing and swing lanes are specified at 20–35 persons per minute and the high-speed access gate at 30–45; tripod turnstiles in this class are typically quoted around 25–40 per minute, and full-height turnstiles slower still. Derate the number you plan with by 20–30% for real badge fumbles, visitors and deliveries.
3. Add a lane for resilience. If a lane is out of service for maintenance, the remaining lanes become the entrance. In practice, most commercial sites plan one spare lane or one wide lane that can absorb overflow, and any site with a single lane is one fault away from an open gate.
4. Check the queue space in front of the lane. Capacity is limited by the space where people wait. A lane bank that backs into a road, a lift lobby or a stair landing creates its own problems regardless of the gate specification.

A worked example: 480 people arriving at a staff entrance between 07:45 and 08:00 means 32 people per minute. Two lanes rated at 20–35 per minute minus a 25% derating gives roughly 15–26 usable passages per minute each — enough, with headroom, provided a third wide lane exists for deliveries and visitors.

Passage width, accessible lanes and emergency egress

Passage width is where pedestrian access projects most often come back to the drawing board, because two requirements pull in opposite directions: narrow passages control traffic, wide passages keep the building usable for everyone.

• Standard lanes. Most waist-height and speed gate lanes are built around a passage of roughly 550–650 mm, which is comfortable for one adult with a shoulder bag and awkward for anything else.
• Wide lanes. Our wing and swing gates are specified with 550–1200 mm passages and the high-speed access gate with 550–900 mm. A wide lane in this class is what carries wheelchairs, trolleys, luggage and bicycles.
• Accessibility. Where accessibility legislation applies, an accessible route must exist through the entrance. In the United States the ADA Standards require a clear width of 36 in (915 mm) on an accessible route, with 32 in (815 mm) at a door opening; in practice that means at least one lane per bank in the 900 mm class, or a separate accessible gate beside the turnstile bank. Confirm the local requirement with your consultant — it is a design decision, and it is much cheaper to make before the cabinets are ordered.
• Egress. Pedestrian barriers must never be the only way out of a space. Life-safety codes such as NFPA 101 require the means of egress to stay usable, so lanes on an egress path must release on fire alarm or power failure — the standard fail-safe behaviour where panels open or arms drop when power is removed. Specify fail-safe explicitly in the tender, and test it during commissioning.
• Direction of travel. Decide lane by lane whether it is entry, exit or bidirectional, and whether the gate reports direction for counting. Bidirectional lanes are common in small lobbies; they are also where tailgating goes unnoticed.

Credentials and integration: what the gate has to accept

The gate controller is a switch with intelligence. It should accept a simple dry-contact (NO) input from any reader, so that you are not locked into one brand of access control platform. Beyond that, the interfaces that matter are:

• Reader types. RFID cards and tags, QR and barcode, tickets, fingerprint, palm and face recognition. Face terminals are usually mounted on or beside the gate cabinet for touchless passage — our lanes support face recognition terminals directly.
• Wiring and protocols. Our wing, swing and high-speed access lanes provide RS-485/232 and TCP/IP interfaces, with four pairs of infrared sensors per lane and buzzer voice prompts. That combination covers two common topologies: a serial or network link to the gate controller from the access control system, or a reader wired directly to the lane.
• Passage logic. Ask for the settings you intend to use: one-passage-per-credential, passage memory for queued signals, timeout and auto-relock if nobody walks through, anti-passback, and an alarm contact for forced entry.
• The bigger system. In mixed vehicle and pedestrian entrances, the pedestrian lane usually belongs to the same access control platform as the vehicle barrier gate and the ANPR camera. Our access control system range and the pedestrian access gate range are built to sit in that chain; for sites where people and cars share one entrance, our guide to parking lot access control covers how the two sides are normally arranged.

Anti-tailgating: level 1 and level 2

Tailgating is the failure mode that turns an expensive access control system into a counting device. There are two levels of protection, and they are specified differently.

• Level 1 — physical. A barrier that physically occupies the passage: the rotating arms of a tripod or full-height turnstile, or the panels of a speed gate. One credential releases one passage. A determined person can still follow closely through a swing or wing lane.
• Level 2 — sensor-based. Infrared or optical detection inside the lane that watches whether more than one person passed on a single authorisation, and raises an alarm or refuses the next credential if the passage does not add up. This is the feature to specify at reception desks, cash areas, data halls and any lobby where a guard cannot see every lane. Our lanes carry four pairs of infrared sensors per lane for this purpose; the effective detection zone, and the alarm behaviour, are commissioning items you should agree with the supplier.

What you should not accept is a verbal promise. Ask for the detection logic in the manual: how many beams, what happens on a second person, what the controller logs, and whether the alarm can be sent to your access control platform.

Indoor, outdoor and weather

An outdoor pedestrian lane is a different specification from a lobby lane, and the differences are visible on the data sheet.

• Materials. Our pedestrian lanes use a brushed SUS304 stainless steel chassis with 10 mm acrylic panels — durable outdoors and easy to clean. Confirm the grade and finish if the site is coastal, where salt exposure accelerates corrosion on lower-grade steel.
• Ingress protection. Our wing, swing and high-speed access lanes are specified IP24: protection against solid objects 12.5 mm and larger, and against water splashing from any direction (IEC 60529). That is appropriate under a canopy or inside a covered entrance. For a gate standing fully exposed to driving rain or wash-down, discuss a higher water rating with the supplier rather than assuming the standard cabinet is enough.
• Temperature range. Operation is specified from −30 °C to +75 °C with ambient humidity to 95% (non-condensing), which covers most export destinations including cold-climate and hot-humid markets. Very cold sites still need a check on lubricants and on whether the controller cabinet is heated.
• Power. AC 220 V ±10%, 50 Hz, with a power consumption of 120 W per lane class. Ask for the supply tolerance where the site voltage is unstable, and allow for a separate power feed so a lane fault does not take out the entrance lighting.

Installation, cabling and commissioning checks

The lane is a piece of site work as much as a product. Most commissioning problems trace back to the floor, the cabling or a setting nobody checked.

• Floor and anchoring. Lanes need a level, sound floor — typically a concrete pad — with anchoring that matches the load. Uneven paving shows up as misaligned wings and false alarms.
• Two conduits per lane. Keep the mains feed and the low-voltage data cable in separate conduits; running them together invites interference. Allow for network cabling if the lane reports to a server or to the cloud.
• Commissioning tests to record. Power-up and self-test; credential read and release; relock after passage; timeout and auto-relock when nobody walks through; alarm on forced entry; level-2 anti-tailgating detection with two people; behaviour on power failure and on fire alarm (fail-safe release); voice prompt volume; event log export to the access control system; and a full pass with the actual credential the site will use. Sign these off in writing — it is the fastest way to settle a dispute later.
• Maintenance. Sensor faces need periodic cleaning (dust causes false alarms), and mechanical lanes need occasional lubrication. Ask for the maintenance interval and the spare parts list with the quotation.

What to send a supplier for a factory-direct quotation

Quotations go wrong when the specification is a single sentence. If you send the items below, a factory can respond with a configuration instead of a guess — and you can compare offers against each other.

1. Number of lanes, direction of each lane, and whether an accessible or wide lane is included.
2. Peak headcount and the arrival window (for example, 480 people in 15 minutes).
3. Site type and location (indoor, covered, fully exposed), with a photo of the entrance and the available footprint.
4. Required passage width per lane, in millimetres.
5. Credential type: card, QR, ticket, face, fingerprint, or a mix per lane.
6. The access control platform the lanes must integrate with, and the interface you expect (dry contact, RS-485, TCP/IP, cloud).
7. Barrier preference and finish, including steel grade and any colour or logo requirement for OEM supply.
8. Power supply available on site, including voltage tolerance and whether a UPS or battery backup is required.
9. Fail-safe behaviour required for egress, and how it is triggered.
10. Documentation expected at handover: wiring diagram, interface list, test records, warranty terms.
11. Commercial terms: quantity per phase, packing, delivery schedule, destination port and Incoterms, plus any spare parts you want in the first shipment.

Send those eleven points and the reply becomes a technical proposal you can evaluate line by line. That is also how you compare a factory against a trading company: a manufacturer will answer the interface and fail-safe questions from its own engineering department.

Conclusion: size the lane before you buy the gate

Pedestrian access control is decided by numbers and interfaces, not by the shape of the barrier. Count the peak arrival rate, choose the form factor that matches the site and its security level, make sure at least one lane in every bank is wide enough for accessibility and bulky traffic, specify fail-safe release for egress, and agree the integration and anti-tailgating behaviour before the order is placed. Then the equipment is simply a delivery.

If you are planning an entrance — or an array of lanes for a station, an office building or a factory — send us the lane count, the peak headcount and a site photo. Our engineering team will return a lane-by-lane configuration, the interface list and a factory-direct quotation. You can also review the pedestrian gate models we build before you write the specification.

FAQ

How many turnstile lanes does a building entrance need?

Count the peak arrival rate, not the daily total. 600 people arriving in 45 minutes need about 15-20 people per minute, which two lanes rated at 20-35 passages per minute cover with headroom. Add one wide lane for accessible and bulky traffic.

Are turnstiles suitable for wheelchair users?

Not on their own. A wide swing or wing lane in the 900 mm class, or a separate accessible gate beside the turnstile bank, is normally provided. In the United States the ADA Standards require a 36 in (915 mm) clear width on an accessible route.

Can pedestrian gates be installed outdoors?

Yes. Our lanes use a brushed SUS304 stainless steel chassis with 10 mm acrylic panels and are specified from -30 C to +75 C with IP24 protection, which suits covered outdoor entrances. For a fully exposed site, discuss a higher water rating with us before ordering.

Can a turnstile work with our existing card or face recognition system?

Yes. The gate controller accepts a dry contact (NO) input from any reader, and our lanes provide RS-485/232 and TCP/IP interfaces, so they can work with a card platform, face recognition terminals or a ticket system.

What happens to a turnstile during a power failure or fire alarm?

Lanes on an egress path are specified fail-safe, so panels open or arms drop when power is removed. Specify this explicitly and test it at commissioning: life-safety codes such as NFPA 101 require the means of egress to stay usable.

What do you need to quote an OEM pedestrian gate project?

Lane count and direction, peak headcount and arrival window, indoor or outdoor conditions with a site photo, required passage width, credential type, the access control platform and interface, power supply, fail-safe requirement and any branding or colour needs.