ISO 7010:2019 / ISO 3864-1

ISO E034 Door slides left to open Sign

ISO E034 Door slides left to open Sign means the E034 sign indicates that a sliding door opens by moving its leaf to the left, from the viewpoint of the person about to operate it, so the first pull on a heavy or unfamiliar door is the correct one. It should be used where the cited standard, facility risk assessment, SDS, emergency plan, or written safety procedure requires this hazard or safety message to be communicated.

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ISO E034 Door slides left to open Sign symbol
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Reference artwork: Wikimedia Commons · License: CC0

Technical Data

Legal Standard ISO 7010:2019 / ISO 3864-1
Color Codes #009933 / RAL 6032 Signal Green
Viewing Distance 100 mm: approximately 5 m; 200 mm: approximately 10 m; 300 mm: approximately 15 m; 400 mm: approximately 20 m; 600 mm: approximately 30 m.
Review Status approved / last reviewed 2026-07-07
Jurisdiction Scope Global, United States, European Union
Keywords e034, iso 7010, emergency, door, slides, left, open, indicate, direction, which, sliding

Standard Dimensions Table

Sign Size Recommended Visibility
100 mm approximately 5 m
200 mm approximately 10 m
300 mm approximately 15 m
400 mm approximately 20 m
600 mm approximately 30 m.

Where This Sign Is Used

It suits manual sliding doors on machinery enclosures, insulated cold-store leaves, and escape-route sliding doors whose emergency operation is sliding by hand with the power off. Because a sliding door's travel direction mirrors on each face, the same panel typically carries E034 on one side and E033 on the other — a point of care on rail vehicles, vessels, and modular plant, where nominally identical units can be assembled with opposite-handed doors.

In-Depth Guidance

Leftward Travel on a Track

E034 belongs on a sliding door whose leaf moves to the left, from the viewpoint of the person about to open it. ISO 7010 defines the sign simply as indicating the direction in which a sliding door opens, and the green-and-white pictogram pairs the door leaf with a left-pointing arrow so the required movement is understood before the hand reaches the handle. E033 is the corresponding sign for rightward travel.

The instruction sounds trivial until the door is heavy, manual, and unfamiliar. A steel enclosure panel or an insulated cold-store leaf can weigh enough that hauling it toward the closed end produces no perceptible movement, and the person concludes the way is blocked. In an evacuation, that misreading sends someone back into the space they were leaving. The arrow exists to make the first pull the correct one.

One Door, Two Signs: the Viewpoint Problem

Sliding doors have a property hinged doors lack: their opening direction is a mirror image on each face. The identical panel that travels left for a person inside a machinery enclosure travels right for a colleague outside it. Any door whose both faces meet escape approaches therefore typically wears E034 on one side and E033 on the other, and ordering two copies of the same sign for the two faces is a standing procurement mistake worth checking for on site.

The verification method is physical: stand on each approach in turn, operate the door, and record the travel direction as seen from that spot before signs are ordered. Rail vehicles, vessels, and modular plant complicate this further because nominally identical units can be assembled with opposite-handed doors, so fleet operators should sign per door as built rather than per drawing.

Power Operation, Breakout, and Failure Modes

Automatic sliding doors add layers the sign must be honest about. Many pedestrian units in public buildings have a breakout feature that lets the panels swing outward under push during an emergency — in which case the emergency operation is not sliding at all, and marking should follow the manufacturer's emergency-egress instructions rather than a bare E034. Purely manual escape operation, via a release that lets the leaf be slid by hand, is the case where the leftward arrow genuinely describes what the user must do with the power off.

Whatever the drive arrangement, escape-route sliding doors need scheduled functional checks: track obstruction, roller wear, and frozen or debris-fouled bottom guides all raise operating effort past what a smaller occupant can deliver. The inspection should be done at the door's worst credible state — power failed, from the escape side — because that is the state in which the sign will be relied on.

Frequently Asked Questions

What does the E034 door sign mean?

The door it is fixed to opens by sliding, and the leaf travels to the left from where you are standing. Take the handle and move the panel leftward along its track instead of pushing, pulling, or looking for a hinge. It is part of the ISO 7010 green escape-information series.

Do both sides of a sliding door get the same direction sign?

No — they usually get opposite ones. A sliding leaf that moves left as seen from one face moves right as seen from the other, so a door serving escape approaches on both faces would carry E034 on one side and E033 on the reverse. Always confirm the direction from each approach before ordering.

How do automatic sliding doors work in a power failure?

It depends on the model. Some fail open, some hold their last position with a manual release for hand sliding, and many pedestrian units have breakout panels that swing open when pushed. Signage must match the actual emergency behavior: a leftward-slide arrow is only correct if manual leftward sliding really is the escape operation with the power off.

Why do people push sliding doors instead of sliding them?

Because most doors in daily life are hinged, and a closed sliding leaf gives few visual cues about its mechanism. Under stress, people default to pushing, and a slab that will not swing reads as locked. Direction signs like E034, mounted next to the handle, break that default at the moment it matters.