Building Sites Are Dangerous Keep Out Signs
Dual-message Building Sites Are Dangerous Keep Out sign designed for perimeter fencing and site entrances, reinforcing hazard awareness and access control.
Building Sites Are Dangerous Keep Out Sign is a BS EN ISO 7010 compliant dual-message safety sign used on construction perimeters to warn of site hazards and prevent unauthorised access. Combining a clear hazard warning with a keep out instruction, it strengthens boundary control and supports site safety obligations.
Where & How to Use this dual-message sign
Install on perimeter fencing, temporary hoarding, scaffold access points and vehicle gates before individuals approach active work areas. Position at eye level along pedestrian and delivery routes so both the hazard warning and keep out instruction are clearly visible from a distance.
Expected Perimeter Safety Outcomes
- ✓ Clear warning of construction hazards
- ✓ Reduced unauthorised site entry
- ✓ Stronger compliance with UK safety regulations
- ✓ Improved control of pedestrian boundaries
- ✓ Increased awareness among contractors and visitors
- ✓ Professional presentation of site risk management
Specifications
- Conforms to BS EN ISO 7010
- Conforms to BS 5499
- ISO Codes: W001, M001
- Sign Type: Dual-Message
- Orientation: Landscape
- Supplied As: Single Sign
- Finish: High Gloss
- Sizes: 300 x 400 mm
- Sizes: 450 x 600 mm
- Sizes: 600 x 800 mm
- Materials: Self-Adhesive Vinyl
- Materials: Rigid Plastic
- Materials: Fluted Polypropylene
- Application: Indoor & Outdoor Use
- Background Colours: Yellow and Blue
- Text Colours: Black and White
- Symbol Colours: Black and White
- Pictograms: General Hazard & Mandatory
- Non-Photoluminescent
- Non-Reflective
- Message Text: “Building Sites Are Dangerous” / “Keep Out”
Boundary Control & Compliance Guidance
- ❌ Placing signs inside the site instead of at entry points
- ❌ Using small sizes on wide fencing runs
- ❌ Mounting where plant equipment obstructs visibility
- ❌ Where deep excavations require specific hazard symbols
- ❌ Where mandatory PPE signage must be added
- ❌ Where vehicle movement warnings are required
- ✅ Install at every pedestrian and vehicle access point
- ✅ Choose rigid materials for exposed boundaries
- ✅ Review placement during regular site inspections
Customers frequently asked questions
Are Building Sites Are Dangerous Keep Out signs legally required? Where construction hazards are present, UK regulations require clear warning signage to inform the public and prevent unauthorised access.
Where should a construction keep out sign be positioned? It should be fixed to perimeter fencing, hoarding and entry gates before anyone reaches the work area.
What ISO symbol is used on this type of sign? ISO 7010 code W001 is used for general hazard warnings, often paired with a mandatory instruction for clarity.
Which material is best for outdoor building sites? Rigid plastic or fluted polypropylene performs well in exposed areas, while vinyl suits smooth internal surfaces.
What size sign is recommended for large construction boundaries? Larger formats such as 600 x 800 mm improve visibility across wide fencing lines and busy access routes.
Features & Benefits
- ✓ Prominent dual-message construction warning format
- ✓ ISO 7010 compliant hazard symbol integration
- ✓ Large format visibility for perimeter fencing
- ✓ Suitable for temporary or long-term sites
- ✓ Multiple durable material options available
- ✓ Deters unauthorised access to active work areas
- ✓ Reinforces contractor safety responsibilities
- ✓ Supports compliance with UK signage regulations
- ✓ Enhances boundary awareness for the public
- ✓ Contributes to safer, better managed sites