Fire Door Keep Closed - Safety Signs by Caledonia Signs

Reinforces the critical safety function of fire doors—preventing the spread of fire and smoke throughout a building. Fire doors are specifically designed to withstand fire for a certain period, helping to compartmentalise a structure, protect escape routes, and give occupants more time to evacuate safely. If left open, a fire door cannot perform its intended role, putting lives and property at greater risk.

The sign acts as a clear, visible reminder for building occupants, maintenance staff, and cleaners to keep the door shut at all times unless it is held open by an approved, automatic fire door holder that releases in an emergency. It helps prevent accidental or careless behaviour—like wedging fire doors open for convenience—that could seriously compromise fire safety.

These signs should be installed on the fire door itself, at eye level, so it’s easy to see when approaching or using the door. Typical locations include corridors, stairwells, kitchens, storage rooms, and between compartments in offices, hospitals, schools, factories, and residential buildings. Essentially, they are used wherever a certified fire door is fitted and must remain closed to maintain a fire-resisting barrier.

By using “Fire Door Keep Closed” signs, building owners and managers promote good safety practices, enhance the effectiveness of passive fire protection, and support compliance with fire safety regulations. These signs are a simple yet powerful tool for reducing the risk of fire spreading and helping protect lives in an emergency.

Materials Explained

Below is a more detailed description of the materials this particular safety sign is available in. Helping you decide which sign option is most suitable for your application.

Rigid Plastic: This lightweight, gloss white PVC is resistant to weather, moisture, chemicals, and general wear and tear, making it suitable for harsh environments. Its smooth, solid surface allows for crisp printing of text and graphics, enhancing readability and visual impact. Businesses who choose Rigid Plastic signs benefit from fewer replacements and minimal maintenance, making it a practical investment for reliable and effective safety signs.

Self-Adhesive Vinyl: Self-adhesive vinyl is easy to apply and it’s budget-friendly. Its adhesive backing allows for easy application to a variety of surfaces such as glass, metal, plastic, and painted walls, which simplifies installation and reduces setup time. Self-adhesive vinyl provides a clean, professional finish that suits many indoor environments including offices, retail, industrial sites, and vehicles. It is more affordable than many other material types and allows for custom shapes, colours, and graphics.

To achieve high performance in low light conditions and conform to ISO 16069 we recommend using Ultra Bright.

Ultra Bright Photoluminescent Rigid Plastic: Ultra Bright rigid plastic has a photoluminescent (glow in the dark) pigmentation which offers a highly effective, reliable, and energy-free visibility in low-light or blackout conditions, making them ideal for emergency exit applications. The afterglow properties exceed PSPA Class C grade, as measured to DIN 6751, provides razor sharp definition in blackout conditions.

Ultra Bright Photoluminescent Self Adhesive: Ultra Bright self adhesive vinyl is a flexible PVC with photoluminescent (glow in the dark) pigmentation. The self-adhesive backing enables quick, tool-free application on smooth, clean surfaces like walls and doors. The afterglow properties exceed PSPA Class C grade, as measured to DIN 6751, provides razor sharp definition in blackout conditions, making them ideal for emergency escape applications.

Rigid Plastic with Self Adhesive Backing: Our standard rigid plastic is a gloss white, smooth, solid material that allows for crisp printing of text and graphics - resistant to weather, moisture, chemicals. A strong peel & stick adhesive backing eliminates the need for tools or hardware, providing a long-lasting bond to most smooth surfaces, saving time and labour costs.