Keep Locked Sign | Mandatory Safety Sign

Description

This sign instructs personnel to keep a door, gate, or cabinet locked at all times, preventing unauthorised access and protecting people or property from harm.

Also commonly referred to as a Keep This Door Locked sign.

Product at a Glance
Product detail: Keep Locked
Sign type: Mandatory Sign safety sign
Colour: Blue and white
Orientation: Portrait
Materials: Aluminium Composite, Corriboard (Correx), Self-Adhesive Vinyl
Sizes: 100mm x 150mm, 200mm x 300mm, 400mm x 600mm, 600mm x 900mm
Suitable locations: chemical storage rooms, server rooms and data centres, electrical distribution cupboards, medicine cabinets in healthcare facilities
Delivery: Nationwide Ireland delivery
SKU: VGAM023

Where Should a Keep Locked Sign Be Used?
chemical storage rooms, server rooms and data centres, electrical distribution cupboards, medicine cabinets in healthcare facilities

Which Material Should I Choose?
Aluminium Composite: Best for permanent indoor or outdoor signage and locations requiring a rigid, durable sign.
Correx: A lightweight, economical option for temporary or shorter-term signage.
Self-Adhesive Vinyl: Best for application directly to smooth, clean surfaces such as doors, panels and equipment housings.

Why this sign: It should be displayed on any access point where unauthorised entry poses a safety, security, or compliance risk, such as hazardous substance stores, restricted plant rooms, or secure enclosures. The sign addresses the risk of accidental or deliberate access by unauthorised individuals, which could result in theft, injury, or exposure to dangerous materials.

Compliance note: In Ireland, employers must provide appropriate safety signage where hazards cannot be avoided or adequately reduced by other measures, based on the workplace risk assessment, under the Safety, Health and Welfare at Work (General Application) Regulations 2007. This sign is suitable for use as part of a workplace safety-signage system where identified by that risk assessment.

Frequently Asked Questions

What does a Keep Locked sign mean?
A Keep Locked sign instructs anyone using or passing the marked door, gate, or enclosure to ensure it remains locked at all times to prevent unauthorised access.

Where should a Keep Locked sign be displayed?
Place the sign at or near chemical storage rooms, server rooms and data centres, or wherever the relevant action is required.

Is a Keep Locked sign a mandatory sign safety sign?
Yes. It uses the blue and white mandatory sign-format design. In Ireland, employers must provide appropriate safety signage where hazards cannot be avoided or adequately reduced by other measures, based on the workplace risk assessment.

What is the difference between “Keep Locked” and “Keep This Door Locked”?
They communicate the same instruction. “Keep This Door Locked” is also commonly used for this type of sign.

Which material should I choose?
See the material guide above — Aluminium Composite for permanent/outdoor use, Correx for temporary signage, and Self-Adhesive Vinyl for direct application to smooth surfaces.

Can this sign be used outdoors?
Aluminium Composite and Self-Adhesive Vinyl are suitable for outdoor use. Correx is best suited to indoor or short-term outdoor use, as extended exposure to the elements can affect its lifespan.

What sizes are available?
Available in 100mm x 150mm, 200mm x 300mm, 400mm x 600mm, 600mm x 900mm.