What is a roller door?
A roller door is a door that does not swing on hinges but slides or rolls on rollers or bearings. The term covers two principles in practice: a leaf that slides sideways or upwards along a track, and a curtain of hinged slats that coils onto a barrel above the opening. In Dutch both are called a roldeur.
Main applications
- Garages and commercial buildings — the slatted curtain travels vertically and coils into a box above the opening. It takes almost no ceiling space, unlike a sectional or up-and-over door, and leaves the driveway clear.
- Cupboards and fitted storage — horizontally or vertically sliding doors running on rollers in a top and bottom track. They save floor space compared with hinged doors.
- Stores and carports — lightweight shutter doors closing off a bike store or a carport.
- Locks and hydraulic engineering — large rolling gates that travel sideways out of a gate chamber to close a lock chamber. This is the heaviest version of the principle.
Roller door, roller shutter or sectional door?
These three get confused:
- A roller shutter normally sits in front of a window or screen, is lighter in construction and serves mainly for shading, blackout and burglary delay.
- A roller door is a way through: heavier, deeper in profile, and made to walk or drive through.
- A sectional door consists of a few wide panels that run on tracks back under the ceiling. It insulates better than a slatted curtain but takes up space inside the garage.
What to check when buying
- Insulation. Standard foam-filled slats insulate only modestly; for a heated garage or workshop look at the quoted U-value and at the perimeter seals.
- Security. Ask about an anti-lift device, and on powered doors about automatic locking. A roller door without one can be levered up with simple tools.
- Safety of the drive. A powered door should have obstacle detection or force limitation that stops it the moment something gets underneath.
- Headroom. The roller box needs space above the opening — work out beforehand how much clear height you will be left with.
- Maintenance. Keep the guides clean, check spring tension annually and lubricate as specified. Springs are under high tension; leave replacement to a trained fitter.
Related terms
- Roller shutter
- Lintel
- Anti-burglar hardware
- Curved hinge
- Door
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