Automatic doors fall into three practical groups. Pedestrian doors, such as sliding and swing doors, handle people at entrances and corridors. Industrial and service doors, such as roller shutters, sectional doors and high-speed doors, handle vehicles, equipment and larger openings. Access systems, such as parking gate barriers and automatic gates, control who and what enters a site. Each type moves differently and needs different space, which is why each one suits some openings far better than others.
Pedestrian doors
Automatic sliding doors
One or two leaves slide horizontally on an overhead track, triggered by a motion or presence sensor. They are the standard choice for mall, office, hotel and hospital entrances because they need no swing space and move people through quickly. The trade-off is wall space: sliding doors need clear room beside the opening for the leaves to park.
Automatic swing doors
A powered operator opens a hinged leaf, much like a conventional door. Swing doors work where there is no side space for sliding, and in internal corridors, accessible washrooms and some healthcare rooms. Plan the swing area carefully so the moving leaf does not become a hazard.
Emergency exit doors
Designed to support evacuation and often linked to the fire alarm system. Their selection and location depend on local safety requirements, so confirm these with the relevant authority or your consultant.
Industrial and service doors
Roller shutters and roll-up doors
Interlocking slats coil around a drum above the opening. Roller shutters are common on warehouses, shopfronts and service entrances because they take up almost no internal space and close the opening securely.
Sectional overhead doors
Horizontal hinged panels run up side tracks and park under the ceiling. Sectional doors, sometimes called American doors, are widely used on loading docks, warehouses, workshops and garages, and insulated panels are an option where temperature control matters. They need adequate headroom and depth inside the building. For a side-by-side view, see roller shutters vs sectional doors.
High-speed doors
Flexible-curtain doors that open and close considerably faster than conventional industrial doors. That reduces air exchange between zones and cuts waiting time for forklifts. They suit busy internal openings in factories and distribution centres, chilled-to-ambient transitions and dust-sensitive areas. Our article on when a facility needs a high-speed door covers the decision in more detail.
Air curtains
Not a door as such, but a unit mounted above the opening that blows a controlled air stream to limit heat, dust and insects while the door is open. Usually a complement to a door, not a replacement.
Vehicle and access systems
Parking gate barriers
A boom arm that raises and lowers to control vehicles at car parks, residential compounds and facility gates. Gate barriers are typically linked to card readers, number plate recognition or a parking management system. See our parking gate barrier selection guide.
Automatic sliding and swing gates
Motorised sliding or swing gates on perimeter fences for compounds, factories and commercial sites. The right type depends on opening width, ground conditions and the space beside the gate.
Access control
Card readers, biometric readers, keypads and similar devices that work with doors and gates to decide who can pass and when.
What applies to every type
Whichever type you lean toward, the same questions come up on every project. Answering them early makes quotes easier to compare.
- Space: side room for sliding, swing area for hinged doors, space above for roller shutters, headroom and depth for sectional doors.
- Control: motion sensor, push button, card reader or security desk. Decide at design stage, not after installation.
- Safety: obstruction detection on every powered door or gate, plus a clear manual release for power cuts.
- Maintenance: busy doors need regular service, so ask about access to parts and spare parts supply. See our maintenance service.
Matching type to opening
- Busy visitor entrance: usually an automatic sliding door.
- Entrance with no side space: an automatic swing door.
- Service entry or shopfront: a roller shutter.
- Loading dock or insulated area: a sectional door.
- High-traffic internal opening: a high-speed door, possibly with an air curtain.
- Car park or compound entry: a gate barrier or automatic gate with access control.
These are starting points, not rules. Site conditions decide the final choice. For a step-by-step approach, read how to choose the right automatic door.
Next step
If your project has several kinds of openings, it helps to review them together. Share the details on the Request a Quote page, or book a site survey and our engineers will recommend a suitable type for each opening.