Any area that contains a prohibited sign is an indication to avoid entry or access to certain areas. On construction sites, they’re usually located at the front of the site entrance, to tell anyone trying to gain access that entry must be authorised. Prohibition signs are red with a red line across the symbol, signalling danger and warning anybody not to proceed further. The red part of the sign must take up at least 35% of the pictogram, in line with HSE guidelines.

With so many signs, shapes, colours and meanings to absorb, it can be a little overwhelming to remember each and every one. So, we’ve highlighted the five most common construction safety signs, providing a handy reference point with all the info you need about construction safety signage.

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Construction sites often contain various types of mandatory signs, meaning you and your employees must obey any message displayed on these types of safety signs. Design-wise, they appear as a blue circle with white text displaying the instruction that needs to be adhered to.

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Each of these five safety sign types has a distinctive look, with shapes and colours that make it easier to identify and understand their meaning. Let’s explore these in a little more detail…

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There are many different types of signs classified as mandatory, so we’ve narrowed our inclusions down to the most common signs you’re likely to find on a construction site:

Knowing where to locate fire equipment is essential for everybody on site. It is also a legal requirement for all workers to know exactly what to do in the event of a fire under the Regulatory Reform (Fire Safety) Order 2005. Without adequate construction safety signage that communicates fire safety protocols, the safety of everybody on-site could be threatened. It can also be extremely costly to your business too.

Fire safety signage will always be square and bright red, offering a distinction between other warning signs. Symbols and text on the signs will always be in white.

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Aside from their obvious importance in communicating safety warnings to workers, displaying construction site Health and Safety signs is a legal requirement.

Important for highlighting safety protocols, safe condition signs will always be green in colour. Rather than warning of hazards, they offer information that guides workers towards a safe space or piece of equipment. This will often depend on the type of situation that occurs on-site. All text and images must be white, and the shape of the sign is rectangular.

Employers and employees should have a good understanding of the different types of safety signage. Reducing risk means increasing safety, resulting in an aligned workforce.

A warning sign is self-explanatory, as it warns against dangers across a construction site. The design of a warning site is a yellow triangle with a black border. Equally, the imagery used on the sign should only contain black symbols against a yellow background. Yellow is a vibrant colour that stands out and striking to the human eye. This is extremely useful for warning signs, as it offers a clear indication that a hazard is present.

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Although there are hundreds of different signs that can be found across a site, there are five different categories of construction Health and Safety signs:

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Safety signs mean information and without it, well that would create chaos, particularly on a busy construction site! They communicate helpful information that benefits everybody. Construction sites contain lots of hazards to warn of any lurking danger to workers, visitors and contractors.

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If you work on a construction site, then you’ll need to be familiar with all the different types of safety signage. Construction Health and Safety signs carry colourful designs, displaying clear messages that safeguard both you and other workers on site.