Fire Door Keep Locked Brass Signs are premium 100 x 100mm mandatory door control signs manufactured from 1.6mm polished brass. Designed to comply with BS 5499, they provide durable, high-quality instruction signage for UK commercial buildings, heritage properties and controlled access areas.

Where & How to Use this sign

Install on fire doors within offices, apartment blocks, plant rooms and commercial premises where doors must remain secured. Suitable for both modern facilities and heritage interiors requiring a refined brass finish while maintaining mandatory fire safety instruction.

Expected Safety Outcomes After Installation

✓ Improved door security control
✓ Clearer fire safety instruction

✓ Enhanced compliance confidence
✓ Consistent mandatory messaging

✓ Long-lasting premium appearance
✓ Strengthened access management

Specifications

Conforms to BS 5499
Sign type: Mandatory
Text: Fire Door Keep Locked
Format: Text only
Size: 100 x 100 mm (H x W)
Orientation: Horizontal

Shape: Rectangle
Material: Solid brass
Material thickness: 1.6 mm
Finish: Polished brass surface
Fixing method: Bolted
Pre-drilled fixing holes

Application: Indoor and outdoor use
Photoluminescent: No
Reflective: No
Background colour: Blue
Text colour: Brass finish lettering
Supplied individually

ⓘ Installation Guidance

Extra Guidance for Installers and Safety Managers

Common Mistakes

❌ Misaligning fixing holes before drilling
❌ Installing below standard viewing height
❌ Mixing finishes on adjacent doors

When NOT to use this sign

❌ Where reflective visibility is required
❌ On temporary site hoarding
❌ Where photoluminescent signage is mandated

Professional Installer Guidance

✅ Use corrosion-resistant fixings
✅ Mount centrally at eye level
✅ Clean surface before securing

? Customers Questions

Customers frequently asked questions

What are Fire Door Keep Locked Brass Signs? Fire Door Keep Locked Brass Signs are polished metal mandatory signs designed to instruct that fire doors remain secured in accordance with UK fire safety requirements.

Are fire door keep locked signs legally required in the UK? Fire safety regulations require clear signage where doors must remain secured to maintain compartmentation and controlled access. Mandatory signage supports compliance during inspections.

Why choose a brass fire door keep locked sign instead of plastic? Brass signs provide a premium, durable finish suited to commercial offices, heritage buildings and residential developments where appearance and longevity are important.

Where should a fire door keep locked sign be positioned? It should be mounted at eye level on the door face or adjacent wall so that the instruction is clearly visible before opening the door.

Is the 100 x 100mm Fire Door Keep Locked brass sign suitable for outdoor use? Yes, the solid brass construction and bolted fixing method make it suitable for both internal and sheltered external applications.

✔ Features & Benefits

Features & Benefits

Features

✓ Manufactured from 1.6mm solid brass
✓ Polished premium surface finish
✓ Pre-drilled for secure bolted fixing
✓ BS 5499 compliant design
✓ 100mm square horizontal format
✓ Suitable for indoor and outdoor use

Benefits

✓ Provides durable long-term performance
✓ Enhances appearance in heritage settings
✓ Maintains mandatory door control messaging
✓ Supports fire safety compliance
✓ Resists everyday wear and handling
✓ Improves clarity of access instructions

More keep locked fire door options

For a straightforward mandatory message, fit symbol fire door keep locked signs where the instruction must stand out clearly without a decorative finish. Useful for staff areas, back corridors and service entrances.

When the door surface is small, choose compact square fire door keep locked signs for a tidy instruction that remains easy to notice. A sensible choice for riser cupboards, plant access and narrow doors.

For a more resilient everyday sign, use aluminium keep locked signs for fire doors in busier areas where durability is a priority. Suitable for schools, workplaces, warehouses and public building routes.

Where lighting may be reduced, specify Xtra-Glo keep locked fire door signs to help the message remain more visible in darker conditions. Useful around stairwells, escape routes and emergency access doors.

For a full comparison before you standardise, view mandatory fire door keep locked signs across the category. This helps you choose the right format for each door type and interior setting.

🚚 Delivery

Estimated Delivery Day

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Based on an estimated 3 working day delivery timeframe from today, excluding weekends and bank holidays. Delivery dates are provided as a guide only and may vary depending on the product ordered, stock availability at the time of purchase, production or printing lead times.