Warning This Building Site Is Dangerous Site Safety Signs
Multi-message Warning This Building Site Is Dangerous sign designed for construction and demolition sites to prevent unauthorised entry and reinforce safety compliance.
Warning This Building Site Is Dangerous Safety Sign is a BS EN ISO 7010 compliant multi-message construction sign used to protect the public and workforce on active projects. Combining hazard warnings, mandatory PPE instructions and access control messaging, it helps prevent unauthorised entry and supports legal safety responsibilities on UK building sites.
Where & How to Use this multi-message sign
Install at site entrances, perimeter fencing, temporary hoarding and scaffold access routes before individuals approach active construction areas. Position clearly at eye level so hazard warnings, PPE requirements and reporting instructions are visible to pedestrians, contractors and vehicle drivers.
Expected Safety Impact After Installation
- ✓ Clear communication of site dangers to the public
- ✓ Reduced unauthorised site access incidents
- ✓ Improved PPE compliance among contractors
- ✓ Stronger documentation of safety controls
- ✓ Enhanced parental and visitor awareness
- ✓ Professional construction site presentation
Specifications
- Conforms to BS EN ISO 7010
- Conforms to BS 5499
- ISO Codes: W001, M001, M014
- Sign Type: Multi-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
- Background Colours: Green, Yellow, Red & Blue
- Text Colours: Black and White
- Symbol Colours: Yellow, Red and Blue
- Pictograms: Hazard Warning, Mandatory & Prohibition
- Non-Photoluminescent
- Non-Reflective
- Message Text: Full multi-message construction safety wording
Related Construction & Site Safety Signage
Construction Site Risk & Compliance Guidance
- ❌ Installing behind gates that remain open
- ❌ Mounting too low on perimeter fencing
- ❌ Using undersized formats for wide entrances
- ❌ Where traffic management warnings apply
- ❌ Where deep excavation notices are needed
- ❌ Where asbestos removal is underway
- ✅ Install at every pedestrian and vehicle access point
- ✅ Select rigid materials for exposed areas
- ✅ Review visibility during routine site inspections
Customers frequently asked questions
Are warning building site signs legally required in the UK? Where risk assessments identify hazards to workers or the public, safety signage must be displayed in accordance with the Health and Safety (Safety Signs and Signals) Regulations 1996.
Where should a building site danger sign be positioned? It should be installed at every site entrance, perimeter boundary and vehicle access route before individuals approach hazardous construction areas.
What ISO symbols are used on building site danger signs? ISO 7010 code W001 is used for general hazard warnings, combined with mandatory and prohibition symbols where PPE and access restrictions apply.
Which material is best for outdoor construction sites? Rigid plastic and fluted polypropylene provide strong durability against weather exposure, while vinyl suits smooth internal surfaces.
What size building site warning sign should I choose? Larger formats such as 600 x 800 mm are recommended for perimeter fencing to ensure visibility from distance.
Features & Benefits
- ✓ Multi-message construction safety format
- ✓ ISO compliant hazard and PPE symbols
- ✓ Large format visibility for perimeter fencing
- ✓ Suitable for temporary or long-term projects
- ✓ Durable materials for harsh site conditions
- ✓ Protects public from entering dangerous areas
- ✓ Reinforces contractor PPE responsibilities
- ✓ Supports compliance with safety legislation
- ✓ Reduces risk of unauthorised access
- ✓ Demonstrates responsible site management