Construction Site Safety Signs

Caledonia Signs supplies a comprehensive range of construction site safety signs for trade customers and distributors across the UK. Our range includes building site signs, site safety boards, construction warning signs, PPE signs, restricted access signs, prohibition signs, mandatory signs, first aid signage and site information signs for commercial and construction environments.

Manufactured for use on active construction sites, our signage is available in a choice of sizes, materials and fixing options to suit temporary and permanent installations. The range includes signs for scaffolding, site traffic, personal protective equipment, hazardous areas, emergency information, welfare facilities and restricted zones, helping site managers communicate important safety instructions clearly and consistently.

As a UK manufacturer and trade supplier, Caledonia Signs supports safety suppliers, facilities providers, sign companies and distributors with durable construction safety signage for professional use. Browse the categories below to find the correct signs for site rules, PPE requirements, warnings, access control, first aid, emergency information and general construction site management.




Choosing the Correct Construction Site Safety Signs


Do not Alter or Adapt any Scaffold on Site without Prior Official Approval

Do not Alter or Adapt any Scaffold on Site without Prior Official Approval Safety Signs

A Do Not Alter or Adapt Any Scaffold On Site Without Prior Official Approval sign is crucial for safety and compliance on construction or maintenance ..

Symbol: ISO 7010: P001 - General Prohibition Safety Signs
Catalogue Page: 121 (EDITION 26)

Unauthorised Personnel must not Service or Adjust the Machinery

Unauthorised Personnel must not Service or Adjust the Machinery Safety Signs

Protect employees and visitors by clearly indicating that only trained and authorised personnel are allowed to operate, service, or adjust machinery. ..

Symbol: ISO 7010: P001 - General Prohibition Safety Signs
Catalogue Page: 25 (EDITION 26)

Danger - Men At Work

Danger - Men At Work Safety Signs

A vital safety warning used to notify people that workers are actively engaged in potentially hazardous activities nearby. This sign is commonly place..

Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)

Danger - Men Working Overhead

Danger - Men Working Overhead Safety Signs

Alert people that work is being carried out above ground level, such as on scaffolding, roofs, bridges, or elevated platforms. This sign warns of pote..

Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)

Danger - Men Working Below

Danger - Men Working Below Safety Signs

An essential safety warning that alerts people to the presence of workers performing tasks beneath a certain area, such as under scaffolding, elevated..

Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)

Danger - Deep Excavations

Danger - Deep Excavations Safety Signs

Used to alert people to the presence of large or deep holes, trenches, or pits in the ground, which pose serious risks such as falls, cave-ins, or ent..

Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)

Caution - Out of Order

Caution - Out of Order Safety Signs

A straightforward but important notice used to inform people that a piece of equipment, machinery, or facility is currently not functioning properly a..

Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 33 (EDITION 26)

Warning - Battery Charging in Progress

Warning - Battery Charging in Progress Safety Signs

An important safety notice used to alert people that batteries are currently being charged in the area. Battery charging, especially for industrial or..

Symbol: ISO 7010: W026 - Battery Charging Safety Signs
Catalogue Page: 29 (EDITION 26)

Caution - Arc Welding

Caution - Arc Welding Safety Signs

Alert people that arc welding operations are taking place nearby. Arc welding involves intense electrical currents and produces bright, ultraviolet li..

Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)

Danger - Test Area

Danger - Test Area Safety Signs

Used to indicate that a location is restricted due to testing activities that present potential hazards. It warns people that they are entering an env..

Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)

Danger - Quarry Workings

Danger - Quarry Workings Safety Signs

Warn people about the hazardous conditions present in or near an active quarry site. Quarry areas often involve heavy machinery, unstable ground, deep..

Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 121 (EDITION 26)

Warning - Hazardous Area

Warning - Hazardous Area Safety Signs

Alert people that they are approaching or entering a zone where dangers exist that could cause injury or harm. This general warning is often applied i..

Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)

Danger - Men Working On Plant

Danger - Men Working On Plant Safety Signs

Warn people that workers are carrying out maintenance, repairs, or operations on heavy machinery or industrial equipment (often referred to as plant--..

Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)

Warning - Stand Clear of Suspended Loads

Warning - Stand Clear of Suspended Loads Safety Signs

Alert people that heavy objects are being lifted or carried overhead by cranes, hoists, or other lifting equipment. This warning is critical to preven..

Symbol: ISO 7010: W015 - Overhead Load Safety Signs
Catalogue Page: 121 (EDITION 26)

Warning - Quarry Workings - Keep Out

Warning - Quarry Workings - Keep Out Safety Signs

Alert people to the hazards associated with active or abandoned quarries. Quarries pose multiple risks, including steep drops, unstable ground, loose ..

Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 53 (EDITION 26)

Warning - Quarry Workings - No Unauthorised Persons

Warning - Quarry Workings - No Unauthorised Persons Safety Signs

An essential safety notice used to restrict access to quarry sites and protect both the public and workers from hazards. Quarries present significant ..

Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 53 (EDITION 26)

Danger - Quarry Workings - Deep Water - No Swimming - Keep out

Danger - Quarry Workings - Deep Water - No Swimming - Keep out Safety Signs

A critical safety notice designed to prevent accidents at quarry sites where deep water is present. Quarries often contain sudden, steep drops and dee..

Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 53 (EDITION 26)

Warning - Strong Winds

Warning - Strong Winds Safety Signs

Alert people to the potential hazards caused by high winds in a specific area. Strong winds can create dangerous conditions, such as falling branches,..

Symbol: ISO 7010: W064 - Strong Winds Safety Signs
Catalogue Page: 33 (EDITION 26)

Danger - People Working Overhead

Danger - People Working Overhead Safety Signs

Alert personnel and visitors that work is being carried out above ground level, where tools, materials, or debris could fall and cause injury. The sig..

Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)

Danger - People Working Below

Danger - People Working Below Safety Signs

Used to alert personnel, visitors, and vehicle operators that work is being conducted at a lower level or underneath an elevated area. The sign commun..

Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)

Danger - People Working On Plant

Danger - People Working On Plant Safety Signs

Used to alert personnel, vehicle operators, and visitors that workers are performing tasks on or around industrial plant machinery, equipment, or vehi..

Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)

Warning - People Working Overhead

Warning - People Working Overhead Safety Signs

Inform personnel, visitors, and vehicle operators that work is being carried out above ground level, where tools, materials, or debris could fall and ..

Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)

Caution - People Working On Equipment

Caution - People Working On Equipment Safety Signs

Highlight to personnel, visitors, and vehicle operators that maintenance, repair, or operational work is being conducted on machinery or equipment in ..

Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 31 (EDITION 26)

Caution - Hot Contents

Caution - Hot Contents Safety Signs

Warn individuals that the contents of a container, machine, or surface are hot and could cause burns or injuries. This type of warning is essential in..

Symbol: ISO 7010: W079 - Hot Content Safety Signs
Catalogue Page: 28 (EDITION 26)

Warning - Moving Parts may cause Hand Crush Injuries

Warning - Moving Parts may cause Hand Crush Injuries Safety Signs

Alert personnel to the serious risk of hand injuries caused by machinery or equipment with moving components. It warns that placing hands near or in c..

Symbol: ISO 7010: W024 - Crushing of Hands Safety Signs
Catalogue Page: 29 (EDITION 26)

Environmental Safety Board

Environmental Safety Board Safety Signs

Promote comprehensive environmental awareness and compliance on-site. The board consolidates key environmental practices in a clear and visible format..

Symbol: Safety Product
Catalogue Page: 75 (EDITION 26)

Warning - You Are Entering a Confined Space Area

Warning - You Are Entering a Confined Space Area Safety Signs

Alert individuals that they are approaching or entering a space with restricted entry or exit, limited airflow, or potentially hazardous conditions wi..

Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)

Danger - Asbestos No Unauthorised Persons Beyond this Point

Danger - Asbestos No Unauthorised Persons Beyond this Point Safety Signs

Clearly identify areas where asbestos-containing materials are present and where only trained, authorised personnel are allowed entry. Asbestos is a h..

Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 52 (EDITION 26)

Danger - Tipping Exclusion Zone

Danger - Tipping Exclusion Zone Safety Signs

Warn personnel and visitors that a specific area is designated as a high-risk zone for tipping operations, such as the unloading or dumping of heavy m..

Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 121 (EDITION 26)

Danger - Hot Works in Progress - No Unauthorised Entry

Danger - Hot Works in Progress - No Unauthorised Entry Safety Signs

Alert personnel and visitors that hot work activities such as welding, grinding, cutting, or soldering are taking place in a designated area. Hot work..

Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 52 (EDITION 26)

Danger - Flammable Storage Area - No Hot Works Permitted

Danger - Flammable Storage Area - No Hot Works Permitted Safety Signs

Alert personnel that the area contains flammable materials, chemicals, or liquids, and that any activity that could produce sparks, flames, or heat su..

Symbol: ISO 7010: W021 - Flammable Material Safety Signs
Catalogue Page: 52 (EDITION 26)

Caution - Risk of Extreme Heat - Keep Hydrated and Wear Sun Protection

Caution - Risk of Extreme Heat - Keep Hydrated and Wear Sun Protection Safety Signs

Prolonged exposure to extreme heat can cause dehydration, heat exhaustion, heat stroke, and other heat-related illnesses. The sign serves as a prevent..

Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 28 (EDITION 26)

Wear Face Shield

Wear Face Shield Safety Signs

Used to instruct individuals to wear appropriate facial protection in areas where there is a risk of injury from flying particles, splashes, chemical ..

Symbol: ISO 7010: M013 - Wear a Face Shield Safety Signs
Catalogue Page: 37 (EDITION 26)

Eye Protection is Provided for Your Safety and Must be Worn

Eye Protection is Provided for Your Safety and Must be Worn Safety Signs

This sign is used to clearly communicate that eye protection is available on-site and must be worn to prevent eye injuries. It emphasises both the ava..

Symbol: ISO 7010: M004 - Wear Eye Protection Safety Signs
Catalogue Page: 36 (EDITION 26)

Eye Protection Must be Worn

Eye Protection Must be Worn Safety Signs

Crucial in areas where there is a risk of eye injury from hazards such as flying debris, chemical splashes, intense light, or dust. The sign serves as..

Symbol: ISO 7010: M004 - Wear Eye Protection Safety Signs
Catalogue Page: 36 (EDITION 26)

Wear Goggles Your Eyes Cannot be Replaced

Wear Goggles Your Eyes Cannot be Replaced Safety Signs

A strong, clear reminder that eye protection is critical because eyes are irreplaceable and vulnerable to serious injury. It emphasises the importance..

Symbol: ISO 7010: M004 - Wear Eye Protection Safety Signs
Catalogue Page: 36 (EDITION 26)

Eye Protection Must be Worn When Operating Machine

Eye Protection Must be Worn When Operating Machine Safety Signs

Essential in areas where machinery operation poses a risk of eye injury from flying debris, sparks, dust, or other hazards generated during the machin..

Symbol: ISO 7010: M004 - Wear Eye Protection Safety Signs
Catalogue Page: 36 (EDITION 26)

Face Shield Symbol

Face Shield Symbol Safety Signs

An important safety tool that clearly indicates the requirement to wear face shields in designated areas. Face shields provide critical protection by ..

Symbol: ISO 7010: M013 - Wear a Face Shield Safety Signs
Catalogue Page: 36 (EDITION 26)

Abrasive Wheel Machine - Safety Goggles - Only Qualified Users

Abrasive Wheel Machine - Safety Goggles - Only Qualified Users Safety Signs

Essential in areas where abrasive wheel machines are operated, as these machines pose significant risks from flying debris, sparks, and wheel fragment..

Symbol: ISO 7010: M004 - Wear Eye Protection Safety Signs
Catalogue Page: 36 (EDITION 26)

Safety Helmets Must be Worn in this Area

Safety Helmets Must be Worn in this Area Safety Signs

Used to enforce the mandatory use of head protection in areas where there is a risk of head injury due to falling objects, moving equipment, or low-ha..

Symbol: ISO 7010: M014 - Wear Head Protection Safety Signs
Catalogue Page: 36 (EDITION 26)

Safety Helmets and Safety Footwear Must be Worn

Safety Helmets and Safety Footwear Must be Worn Safety Signs

Used to mandate the simultaneous use of head and foot protection in environments where both types of personal protective equipment (PPE) are necessary..

Symbol: ISO 7010: M014 - Wear Head Protection Safety Signs
Catalogue Page: 36 (EDITION 26)

Wear Welding Mask

Wear Welding Mask Safety Signs

A Wear Welding Mask sign is used to require individuals to wear a welding mask or helmet to protect their eyes, face, and neck from hazards such as in..

Symbol: ISO 7010: M019 - Wear a Welding Mask Safety Signs
Catalogue Page: 37 (EDITION 26)

Bump Caps must be Worn in this Area

Bump Caps must be Worn in this Area Safety Signs

Inform and remind personnel that protective headgear is required to prevent minor head injuries from low overhead obstructions or protruding objects. ..

Symbol: ISO 7010: M014 - Wear Head Protection Safety Signs
Catalogue Page: 36 (EDITION 26)

Welding Mask Symbol

Welding Mask Symbol Safety Signs

Indicate that welding operations are taking place and that proper eye and face protection is required in the area. Welding produces intense light, spa..

Symbol: ISO 7010: M019 - Wear a Welding Mask Safety Signs
Catalogue Page: 36 (EDITION 26)

Protective Footwear Must be Worn

Protective Footwear Must be Worn Safety Signs

Used to require the use of safety shoes or boots in areas where foot injuries are a risk due to hazards such as heavy falling objects, sharp materials..

Symbol: ISO 7010: M008 - Wear Safety Footwear Safety Signs
Catalogue Page: 36 (EDITION 26)

Hand Protection Must be Worn

Hand Protection Must be Worn Safety Signs

Used to mandate the use of gloves or other protective handwear in areas where hands are at risk of injury from chemicals, cuts, abrasions, heat, cold,..

Symbol: ISO 7010: M009 - Wear Protective Gloves Safety Signs
Catalogue Page: 37 (EDITION 26)

Respirators Must be Worn

Respirators Must be Worn Safety Signs

Used to mandate the use of respiratory protective equipment in areas where the air may contain harmful dust, fumes, gases, vapors, or biological hazar..

Symbol: ISO 7010: M017 - Wear Respiratory Protection Safety Signs
Catalogue Page: 37 (EDITION 26)

Respirator Symbol

Respirator Symbol Safety Signs

A safety icon used to indicate that respiratory protection must be worn in a specific area. Typically, the symbol features a stylised face wearing a r..

Symbol: ISO 7010: M017 - Wear Respiratory Protection Safety Signs
Catalogue Page: 36 (EDITION 26)

Masks Must be Worn When Working Here

Masks Must be Worn When Working Here Safety Signs

Used to require the use of protective masks or face coverings in specific work areas where inhalation of dust, fumes, chemicals, or airborne contamina..

Symbol: ISO 7010: M016 - Wear a Mask Safety Signs
Catalogue Page: 37 (EDITION 26)

Personal Protective Equipment is Provided for your Health and Safety and Must be Used

Personal Protective Equipment is Provided for your Health and Safety and Must be Used Safety Signs

Used to inform workers and visitors that Personal Protective Equipment (PPE) is available on site for their use. This sign reassures people that the n..

Symbol: ISO 7010: M001 - General Mandatory Action Safety Signs
Catalogue Page: 37 (EDITION 26)

Protective Garments Must be Worn

Protective Garments Must be Worn Safety Signs

Used to mandate the wearing of specific protective clothing such as lab coats, coveralls, aprons, or gowns in areas where there is a risk of contamina..

Symbol: ISO 7010: M010 - Wear Protective Clothing Safety Signs
Catalogue Page: 37 (EDITION 26)

Protective Clothing Provided for Your Safety Must be Worn

Protective Clothing Provided for Your Safety Must be Worn Safety Signs

Used to inform and remind workers and visitors that protective clothing is supplied and must be worn in designated areas to ensure their safety. This ..

Symbol: ISO 7010: M010 - Wear Protective Clothing Safety Signs
Catalogue Page: 37 (EDITION 26)

Clip On When Working At Height

Clip On When Working At Height Safety Signs

Using a Clip On When Working At Height sign offers several important benefits for workplace safety, especially in environments where employees are exp..

Symbol: ISO 7010: M018 - Wear a Safety Harness Safety Signs
Catalogue Page: 37 (EDITION 26)

High Visibility Clothing Must be Worn in this Area

High Visibility Clothing Must be Worn in this Area Safety Signs

Using a High Visibility Clothing Must Be Worn in This Area sign provides several important benefits for workplace safety, particularly in environments..

Symbol: ISO 7010: M015 - Wear High Visibility Clothing Safety Signs
Catalogue Page: 36 (EDITION 26)

Approved Personal Protective Equipment Must be Worn At All Times

Approved Personal Protective Equipment Must be Worn At All Times Safety Signs

Used to enforce strict safety requirements in hazardous environments by clearly indicating that wearing the correct PPE is mandatory at all times with..

Symbol: ISO 7010: M001 - General Mandatory Action Safety Signs
Catalogue Page: 37 (EDITION 26)

Noise Level - Ear Protectors Available On Request

Noise Level - Ear Protectors Available On Request Safety Signs

Used to inform individuals that the area may have elevated noise levels, and that hearing protection is available if needed, even if it is not mandato..

Symbol: ISO 7010: W087 - High Sound Volume Levels Safety Signs
Catalogue Page: 33 (EDITION 26)

Safety Footwear Must be Worn On this Site

Safety Footwear Must be Worn On this Site Safety Signs

Used to mandate the use of protective footwear to prevent foot injuries caused by hazards such as heavy objects, sharp materials, chemicals, or slippe..

Symbol: ISO 7010: M008 - Wear Safety Footwear Safety Signs
Catalogue Page: 36 (EDITION 26)

Wear Visor

Wear Visor Safety Signs

A Wear Visor sign is used to require individuals to wear a face shield or visor to protect their face and eyes from hazards such as flying debris, che..

Symbol: ISO 7010: M013 - Wear a Face Shield Safety Signs
Catalogue Page: 37 (EDITION 26)

Wear Gloves

Wear Gloves Safety Signs

instruct individuals to wear protective gloves in areas where their hands may be exposed to harmful substances, sharp objects, extreme temperatures, o..

Symbol: ISO 7010: M009 - Wear Protective Gloves Safety Signs
Catalogue Page: 37 (EDITION 26)

Wear Masks

Wear Masks Safety Signs

Wear Masks signs are important because they serve as a clear reminder that face masks must be worn to protect individuals from inhaling harmful airbor..

Symbol: ISO 7010: M016 - Wear a Mask Safety Signs
Catalogue Page: 37 (EDITION 26)

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