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Street Solutions UK  |  SKU: 2031738

Mandatory Fire Safety Signs - Keep Locked Shut When Not in Use

£0.50 Ex. VAT
£0.60 Inc. VAT
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Why it works

Clear instruction, built to last

Clear mandatory instruction

Blue and white "Keep locked shut when not in use" wording is instantly recognisable as a mandatory instruction.

Supports fire door security

Reminds anyone using the door to keep it locked, helping maintain fire safety and access control.

Fixes your way

Self-adhesive or drill-fix mounting covers most materials, with channel fixing on the 200mm Vinyl Composite for posts, barriers and gates.

Five material choices

From self-adhesive vinyl to fully waterproof vinyl composite, suited to indoor and outdoor doors.

Photoluminescent option

Charges in ambient light and stays visible if the power fails.
Overview

Mandatory Fire Safety Signs - Keep Locked Shut When Not in Use - Overview

The Keep Locked Shut When Not in Use sign is a blue and white mandatory sign that instructs people to keep a door locked when it is not in active use, supporting fire safety and site security. It is available in two sizes and five materials, with self-adhesive, drill-fix or channel mounting to suit the door and its surroundings.
100-200mm
Sign width
2sizes
Available
5materials
Choices
3fixings
Mounting methods
Dimensions
Width100mm / 200mm
Height100mm / 200mm
Details
ColourBlue and white
MaterialsSelf-adhesive vinyl, rigid PVC (1mm), foam PVC, photoluminescent PVC, vinyl composite
FixingSelf-adhesive, drill holes, or channel (200mm Vinyl Composite only)

Frequently asked questions

Does this sign mean the door should always be locked?
No - it means the door should be kept locked whenever it is not actively in use, rather than being locked at all times.

How big is the sign?
It is supplied in two sizes, 100mm x 100mm and 200mm x 200mm, so you can match it to how visible the door needs to be.

Can this go on any door, not just a fire door?
Yes - it is suited to any door where security or fire safety depends on it staying locked outside of use, not just fire-rated doors.

Which material suits a door that gets a lot of use nearby but should be locked overnight?
Rigid PVC or vinyl composite hold up well near frequent handling; self-adhesive vinyl is best on a smooth surface that will not be knocked.

Can it be fixed to a post or barrier instead of a door?
Yes - the 200mm Vinyl Composite option comes with a horizontal or vertical channel fixing for posts, barriers or gates, as well as flat drill-fix mounting.

What is the point of the photoluminescent version?
It absorbs ambient light and glows in the dark, so the instruction stays visible if the lighting fails or is switched off overnight.

Is this sign suitable for shared buildings like apartment blocks?
Yes - it is designed for doors in hotels, warehouses, apartment blocks, commercial kitchens and laboratories where controlled access matters.

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