Warning construction site keep out sign with hazard and access restriction symbols
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Warning Construction Site Keep Out Sign

Warns unauthorised personnel to stay away from construction areas with a clear and direct safety message.

  • Provides a clear warning to keep out of hazardous construction zones
  • Ideal for building sites, renovation areas, and restricted work zones
  • High-contrast design ensures excellent visibility and readability
  • Manufactured from durable materials suitable for indoor and outdoor use
  • Helps reduce risk of accidents and supports site safety control

Sign Size

  • 400mm x 300mm
  • 600mm x 200mm
  • 600mm x 450mm

Sign Material

  • Aluminium Composite (3mm)
  • Aluminium Composite With Fixing Channel (3mm)
  • Rigid Plastic (1mm)
  • 2mm Rigid Plastic
  • Self Adhesive
  • Correx (4mm)

Sign Size:

Sign Material:

£6.86 Tax included

5.72 Tax excluded

Product Overview

This Warning Construction Site Keep Out Sign combines a clear hazard warning with a strict access restriction message to prevent unauthorised entry into potentially dangerous construction areas. Featuring highly recognisable symbols and bold text, it ensures that individuals are clearly alerted to risks and instructed to stay out, helping maintain a safe and controlled work environment.

Where to Use

  • Construction sites
  • Building renovation areas
  • Industrial work zones
  • Restricted access areas
  • Temporary hazard zones

Key Features

  • Clear “Warning Construction Site” and “Keep Out” message
  • Recognisable hazard and mandatory symbols for quick understanding
  • High-contrast colours for maximum visibility
  • Easy to install in a variety of locations
  • Helps prevent unauthorised access and reduce risk

Materials & Options

  • Aluminium Composite (3mm)
  • Aluminium Composite With Fixing Channel (3mm)
  • Rigid Plastic (1mm)
  • 4mm Recyclable Correx ®

Compliance

This sign supports compliance with UK health and safety regulations, including:

  • Health and Safety at Work etc. Act 1974
  • Safety Signs and Signals Regulations 1996

Frequently Asked Questions

Where should this sign be installed?
This sign should be installed at entrances to construction sites, restricted zones, or any area where unauthorised access must be prevented.

Is this sign suitable for outdoor use?
Yes, it is available in durable materials designed to withstand outdoor conditions as well as indoor environments.

What does this sign indicate?
It warns of a construction hazard and clearly instructs individuals to keep out of the area to avoid potential danger.

Reference WAC.21C-SA

Trade Discounts

Rainbow Safety supplies safety signs to trade professionals across the UK.

Our trade customers include:

  • Fire safety service companies
  • Fire risk assessors and safety consultants
  • Electrical wholesalers
  • Facilities management companies

Approved trade customers receive:

  • Preferential trade discounts
  • Better margins for reselling safety signs
  • Marketing support to help you sell more signs
  • Access to our full range of safety signs
❝ Trade Customer Success Story
“Working with Rainbow Safety has transformed our safety sign sales.”
Before partnering with Rainbow Safety, our safety sign sales were less than £300 per month.
With the support and marketing tools provided, our sales have grown to over £3,000 per month.

Fire extinguisher servicing margins are not what they used to be, so supplying safety signs has become a valuable additional revenue stream for our business. On one warehouse safety survey alone we invoiced £5,100 on a single order.

We can now compete with internet prices and still make a healthy margin.

We were regularly asked to supply safety signs, but struggled to compete with internet prices while maintaining a worthwhile margin.

Working with Rainbow Safety has changed that. We can now offer our customers a competitive range of safety signs while still making a healthy margin for our business.

Apply for Trade Discounts
✓ Quick Approval   •   No Obligation

Loyalty Rewards

Rainbow Safety rewards regular customers across the UK who order safety signs on an ongoing basis.

Examples of our loyalty customers include:
  • Schools and colleges
  • Facilities management companies
  • Contractors and maintenance teams
  • Offices and commercial premises
Regular Customer Benefits:
  • Preferential pricing for regular customers
  • Free design service for custom safety signs
  • Access to exclusive promotional offers
  • Dedicated account manager if required
❝
Loyalty Customer Success Story

“Rainbow Safety has become our go-to supplier for safety signs.”

We regularly need safety signs for maintenance work, refurbishments and ongoing compliance updates. Since ordering from Rainbow Safety, the process has been straightforward, reliable and cost-effective.

The loyalty rewards and special offers have helped us save money across repeat orders, while the wide product range means we can usually source everything we need in one place.

Fast ordering, consistent quality and ongoing rewards have made Rainbow Safety a valuable supplier for our business.

✓ Quick Approval   •   No Obligation

Reviews

Grade 
Thomas Grey

Well made and feels sturdy. Used on a construction fence and it’s stayed looking good despite the weather. The size and material choices make it easy to get what’s needed.

Grade 
Sarah Patel

No complaints at all. The sign looks professional and does the job. A few different options to choose from depending on mounting or location, which is useful.

Grade 
Jack Wilson

Good quality sign and arrived quickly. The print is bold and easy to see. Useful that there are size and material options depending on what’s needed for the site.

Grade 
Olivia Harper

Does exactly what it’s supposed to. Text is clear, colours stand out, and it feels durable. Handy that it’s available in different materials depending on where it’s being used.

Write your review

Warning Construction Site Keep Out Sign

Warns unauthorised personnel to stay away from construction areas with a clear and direct safety message.

  • Provides a clear warning to keep out of hazardous construction zones
  • Ideal for building sites, renovation areas, and restricted work zones
  • High-contrast design ensures excellent visibility and readability
  • Manufactured from durable materials suitable for indoor and outdoor use
  • Helps reduce risk of accidents and supports site safety control

Write your review