10 Must-Have Signs on Every Construction Site

Construction sites are busy, high-risk environments where safety, organisation, and communication are absolutely essential. One of the simplest yet most effective ways to ensure compliance and prevent accidents is through clear, durable, and strategically placed signage.

At Cora Graphics, we work with construction companies across the UK to provide signs that keep workers safe and projects running smoothly. Here's our expert list of the top 10 must-have signs that every construction site should display.

Site Safety Board

A comprehensive safety board is typically displayed at the site entrance. It includes emergency contact details, site rules, PPE requirements, and health & safety notices.

Why It's Essential: This is your first line of communication with anyone entering the site. It helps establish expectations and ensures legal compliance.

PPE Requirement Signs

These signs inform workers and visitors of the personal protective equipment (PPE) required on site, such as hard hats, hi-vis jackets, gloves, goggles, and steel-toe boots.

Why It's Essential: Ensures that everyone knows what protective gear is mandatory, helping to reduce the risk of injury.

Danger – Construction Site Keep Out

Warning signs around the perimeter of the site deter unauthorised access and alert the public to potential hazards.

Why It's Essential: Protects the general public and helps prevent accidents or liability issues.

Site Induction Required

Signage at the site entrance should indicate that no unauthorised persons are allowed entry without completing an induction.

Why It's Essential: Ensures all workers are properly briefed on site rules and hazards before starting work.

No Unauthorised Access

Reinforces restricted access zones and prevents non-workers from entering potentially dangerous areas.

Why It's Essential: Maintains control over who can access which parts of the site, reducing security and safety risks.

Emergency Assembly Point

A clearly marked sign showing where to gather in case of an evacuation or emergency.

Why It's Essential: Helps everyone know exactly where to go during emergencies, ensuring a quick and organised response.

First Aid Station / First Aider

Identify where first aid kits are located or who the appointed first aider is on site.

Why It's Essential: Quick access to first aid can be critical in emergencies, and signage helps avoid confusion.

Fire Point / Fire Extinguisher Location

Highlight fire extinguishers and fire points across the site.

Why It's Essential: In the event of a fire, fast identification of firefighting equipment is crucial.

Vehicle Movement Warning Signs

Signs like "Beware – Vehicles Reversing" or "Heavy Plant Crossing" alert workers and visitors to moving machinery.

Why It's Essential: Helps prevent collisions and injuries, especially in high-traffic zones.

Warning Signs for Specific Hazards

Depending on your site, this might include signs like “Deep Excavation,” “Overhead Work,” “Live Cables,” or “Asbestos in Area.”

Why It's Essential: Every site has unique hazards, and these signs help keep those dangers visible and top of mind.

Why Signage Matters

In the construction industry, signage isn’t just about ticking health & safety boxes—it’s a vital tool to communicate, protect, and manage your workforce and the general public.

At Cora Graphics, we supply fully customisable, weatherproof, and regulation-compliant construction signage that’s tailored to your project’s needs.