Warning Safety Signs
Caledonia Signs supplies a comprehensive range of warning safety signs for trade customers and distributors across the UK. Our range includes workplace warning signs, danger signs and hazard warning signs for risks such as electrical hazards, hazardous substances, slippery surfaces, moving vehicles, fragile roofs, extreme temperatures and restricted or dangerous areas.
Manufactured for professional use, our warning signage is available in a choice of sizes, materials and fixing options to suit commercial, industrial, construction and public environments. Many products within the range use recognised safety symbols and clear warning messages to help identify hazards quickly and support consistent safety communication.
As a UK manufacturer and trade supplier, Caledonia Signs supports safety suppliers, facilities providers, sign companies and distributors with durable warning and danger signage for professional use. Browse the categories below to find the correct signs for workplace hazards, electrical risks, vehicles, substances, surfaces, temperature, water and general safety warnings.
Choosing the Correct Warning Safety Signs
Caution - Forklift Trucks Operating Safety Signs
A crucial safety warning used to alert pedestrians and other workers that forklift trucks are actively operating in the area. Forklifts are heavy mach..
Symbol: ISO 7010: W014 - Forklift Truck Safety Signs
Catalogue Page: 29 (EDITION 26)
Danger - Stop / Look / Listen - Beware of Trucks Safety Signs
A crucial safety warning designed to alert pedestrians and other road users to the presence of trucks operating in the area. Trucks can pose significa..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 29 (EDITION 26)
Caution - Mind the Step Safety Signs
A practical safety warning used to alert people to changes in floor level, such as steps, staircases, or uneven surfaces that could cause trips or fal..
Symbol: ISO 7010: W007 - Floor-Level Obstacle Safety Signs
Catalogue Page: 35 (EDITION 26)
Caution - Slippery Floor Surface Safety Signs
A Caution Slippery Floor Surface sign is used to warn people that a floor may present an increased risk of slipping. Clearly identifying the hazard he..
Symbol: ISO 7010: W011 - Slippery Surface Safety Signs
Catalogue Page: 35 (EDITION 26)
Warning - Anti Climb Paint Safety Signs
A Warning - Anti Climb Paint sign should be placed on surfaces treated with anti-climb paint - typically walls, fences, drainpipes, or ledges that mig..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 29 (EDITION 26)
Warning - Razor Wire Safety Signs
A Warning Razor Wire sign should be placed prominently wherever razor wire is installed, such as on fences, walls, or barriers around private properti..
Symbol: Safety Product
Catalogue Page: 29 (EDITION 26)
Warning - Barbed Wire Safety Signs
Should be placed in all areas where barbed wire is installed, typically on fences, walls, or barriers around properties requiring security. Common loc..
Symbol: ISO 7010: W033 - Barbed Wire Safety Signs
Catalogue Page: 29 (EDITION 26)
This Is a Security Patrolled Area Safety Signs
A This Is a Security Patrolled Area sign should be prominently placed at all entry points to a property, including gates, entrances, parking lots, and..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 29 (EDITION 26)
This Is a Restricted Area Safety Signs
A This Is a Restricted Area sign should be placed at all entry points to locations where access is limited to authorised personnel only. These areas m..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 29 (EDITION 26)
Trespassers Will be Prosecuted Safety Signs
A Trespassers Will Be Prosecuted sign should be prominently displayed at all entry points to private or restricted properties where unauthorised acces..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 29 (EDITION 26)
Caution - Security Alarm Will Sound If Door Is Opened Safety Signs
This sign serves as a clear warning to anyone approaching a secured entrance that opening the door without authorisation will trigger an alarm. This w..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 29 (EDITION 26)
Cameras Are Fitted to this Vehicle Safety Signs
Used to inform the public, employees, and other road users that the vehicle is equipped with surveillance or recording devices. This sign serves both ..
Symbol: Safety Product
Catalogue Page: 29 (EDITION 26)
Cyclists Beware of Passing this Vehicle On the Inside Safety Signs
Warn cyclists about the potential danger of riding too close to a vehicle, particularly on its nearside (the side closest to the curb). Large vehicles..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 106 (EDITION 26)
Warning - this Vehicle Makes Wide Turns Safety Signs
Alert other road users that the vehicle requires extra space to complete turns safely. Large vehicles, such as trucks, buses, or articulated lorries, ..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 29 (EDITION 26)
This Vehicle is Fitted with a Tracker Safety Signs
Advise staff and passengers of their legal duties relating to driving policies and procedures Materials Explained Below is a more detailed descriptio..
Symbol: Safety Product
Catalogue Page: 29 (EDITION 26)
Warning - Danger of Crushing Safety Signs
A Warning - Danger of Crushing sign is crucial for alerting workers and visitors to areas or machinery where there is a risk of being caught, squeezed..
Symbol: ISO 7010: W019 - Crushing Safety Signs
Catalogue Page: 29 (EDITION 26)
Danger - 240 Volts Safety Signs
A vital warning to alert individuals about the presence of electrical equipment or wiring that operates at a high voltage of 240 volts. Electricity at..
Symbol: ISO 7010: W012 - Electricity Safety Signs
Catalogue Page: 31 (EDITION 26)
Danger - 110 Volts Safety Signs
An important safety warning used to alert people to the presence of electrical equipment or wiring operating at 110 volts. Although this voltage is lo..
Symbol: ISO 7010: W012 - Electricity Safety Signs
Catalogue Page: 31 (EDITION 26)
Danger - 415 Volts Safety Signs
A critical safety warning used to alert individuals to the presence of high-voltage electrical equipment or wiring operating at 415 volts. This voltag..
Symbol: ISO 7010: W012 - Electricity Safety Signs
Catalogue Page: 31 (EDITION 26)
Danger - 440 Volts Safety Signs
Designed to alert individuals to the presence of electrical equipment or wiring operating at 440 volts, a voltage commonly used in industrial and comm..
Symbol: ISO 7010: W012 - Electricity Safety Signs
Catalogue Page: 31 (EDITION 26)
Danger - 11000 Volts Safety Signs
An extremely important safety warning used to indicate the presence of very high-voltage electrical equipment or power lines operating at 11,000 volts..
Symbol: ISO 7010: W012 - Electricity Safety Signs
Catalogue Page: 31 (EDITION 26)
Warning - High Voltage Cables Overhead Safety Signs
An essential safety notice used to alert people to the presence of energised electrical cables suspended above ground level. These cables carry high v..
Symbol: ISO 7010: W012 - Electricity Safety Signs
Catalogue Page: 31 (EDITION 26)
Warning - High Voltage Cables Underground Safety Signs
A crucial safety notice used to alert workers, contractors, and the public to the presence of buried high-voltage electrical cables beneath the ground..
Symbol: ISO 7010: W012 - Electricity Safety Signs
Catalogue Page: 31 (EDITION 26)
Danger - High Voltage Safety Signs
A critical safety warning used to alert people to the presence of electrical equipment or areas where dangerously high voltages exist. High voltage el..
Symbol: ISO 7010: W012 - Electricity Safety Signs
Catalogue Page: 31 (EDITION 26)
Danger - Live Wires Safety Signs
A vital safety warning used to alert people to the presence of exposed or energised electrical wires that carry current. Live wires pose an immediate ..
Symbol: ISO 7010: W012 - Electricity Safety Signs
Catalogue Page: 31 (EDITION 26)
Danger - Isolate Main Supply Before Opening Safety Signs
An essential safety notice used to remind workers and maintenance personnel to disconnect the main electrical power supply before opening electrical p..
Symbol: ISO 7010: W012 - Electricity Safety Signs
Catalogue Page: 31 (EDITION 26)
Danger - Electricity Safety Signs
A broad but critical safety warning used to alert individuals to the presence of electrical hazards in a particular area or on specific equipment. Ele..
Symbol: ISO 7010: W012 - Electricity Safety Signs
Catalogue Page: 31 (EDITION 26)
Danger of Death Safety Signs
One of the most serious and urgent safety warnings used to indicate an immediate and potentially fatal hazard, usually related to electrical equipment..
Symbol: Safety Product
Catalogue Page: 31 (EDITION 26)
Warning - Laser Hazard Safety Signs
An important safety notice used to alert people to the presence of laser equipment or areas where laser beams are in use. Lasers can cause serious eye..
Symbol: ISO 7010: W004 - Laser Beam Safety Signs
Catalogue Page: 28 (EDITION 26)
Caution - Underground Services Safety Signs
A vital safety warning used to alert workers, contractors, and the public to the presence of buried utilities such as electrical cables, gas lines, wa..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 31 (EDITION 26)
Warning - Laser Beam Safety Signs
An important safety alert used to notify people about the presence of active laser beams in the area. Laser beams, depending on their class and power,..
Symbol: ISO 7010: W004 - Laser Beam Safety Signs
Catalogue Page: 28 (EDITION 26)
Danger - Live Busbars Safety Signs
A critical safety warning used to alert personnel to the presence of live electrical busbars - conductive metal strips or bars that carry large curren..
Symbol: ISO 7010: W012 - Electricity Safety Signs
Catalogue Page: 31 (EDITION 26)
Danger - Live Wires Overhead Safety Signs
A crucial safety warning used to alert people to the presence of energised electrical wires suspended above ground level. These overhead wires carry l..
Symbol: ISO 7010: W012 - Electricity Safety Signs
Catalogue Page: 31 (EDITION 26)
No Unauthorised Person to Touch this Switchgear Safety Signs
An important safety notice that restricts access and operation of electrical switchgear equipment to only qualified and authorised personnel. Switchge..
Symbol: ISO 7010: W012 - Electricity Safety Signs
Catalogue Page: 31 (EDITION 26)
Danger - Buried Cable Safety Signs
A vital safety warning used to indicate the presence of underground electrical cables beneath a specific area. These cables carry live electrical curr..
Symbol: ISO 7010: W012 - Electricity Safety Signs
Catalogue Page: 31 (EDITION 26)
Warning - Drivers Beware Overhead Cables Safety Signs
An important safety notice designed to alert vehicle operators to the presence of overhead electrical or communication cables along their route. These..
Symbol: ISO 7010: W012 - Electricity Safety Signs
Catalogue Page: 31 (EDITION 26)
Danger - 400 Volts Safety Signs
A critical electrical safety warning that indicates the presence of electrical equipment or circuits operating at a voltage level of 400 volts. This l..
Symbol: ISO 7010: W012 - Electricity Safety Signs
Catalogue Page: 31 (EDITION 26)
Warning - Electric Fence Safety Signs
An important safety notice used to alert people to the presence of an electric fence in the area. Electric fences carry a high-voltage, low-current el..
Symbol: ISO 7010: W012 - Electricity Safety Signs
Catalogue Page: 29 (EDITION 26)
Danger - 230 Volts Safety Signs
Used to indicate the presence of electrical equipment or circuits operating at 230 volts, which is a common voltage level for residential and commerci..
Symbol: ISO 7010: W012 - Electricity Safety Signs
Catalogue Page: 31 (EDITION 26)
Caution - Men Working On Equipment Safety Signs
Alert people that maintenance, repairs, or inspections are currently being carried out on machinery or equipment in the area. This warning helps preve..
Symbol: ISO 7010: W012 - Electricity Safety Signs
Catalogue Page: 31 (EDITION 26)
Danger - Electric Shock Risk Safety Signs
Crucial for warning people about the presence of electrical hazards that could cause serious injury or even death, this electric shock risk sign alert..
Symbol: ISO 7010: W012 - Electricity Safety Signs
Catalogue Page: 31 (EDITION 26)
Caution - Drones May be Operating in this Area Safety Signs
Safety and awareness sign used to inform people that drones may be actively flying in the vicinity. Its primary purpose is to warn individuals of pote..
Symbol: Safety Product
Catalogue Page: 78 (EDITION 26)
Danger - Disconnect the Mains Supply Before Removing this Cover Safety Signs
Warn personnel that electrical equipment or machinery contains live electrical components that could cause serious injury or death if accessed while p..
Symbol: ISO 7010: W012 - Electricity Safety Signs
Catalogue Page: 31 (EDITION 26)
Caution - Glass Door Safety Signs
an important safety notice designed to alert people to the presence of a glass door, which can sometimes be hard to see, especially if it is very clea..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 33 (EDITION 26)
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 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 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 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)
Danger - Stop / Look / Listen - Beware of Vehicles Safety Signs
An essential safety warning used to alert pedestrians and workers to the presence of moving vehicles in the vicinity. This sign emphasises the need fo..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 29 (EDITION 26)
Danger - Deep Water Safety Signs
A vital safety warning used to alert people to the presence of deep bodies of water that pose drowning or other serious hazards. Deep water areas - su..
Symbol: ISO 7010: W047 - Deep Water Safety Signs
Catalogue Page: 33 (EDITION 26)
Caution - Hot Safety Signs
Alert people that a surface, equipment, or substance in the vicinity is hot and can cause burns or other heat-related injuries. This sign serves as a ..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 28 (EDITION 26)
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 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 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)
Caution - Trip Hazard Safety Signs
An important safety warning used to alert people to uneven surfaces, cables, debris, or other obstacles that could cause someone to trip and fall. Tri..
Symbol: ISO 7010: W007 - Floor-Level Obstacle Safety Signs
Catalogue Page: 35 (EDITION 26)
Caution - Mind Your Head Safety Signs
A vital safety warning used to alert people to low overhead obstacles or structures that could cause head injuries if not noticed. These hazards might..
Symbol: ISO 7010: W020 - Overhead Obstacle Safety Signs
Catalogue Page: 33 (EDITION 26)
Explosive Symbol Safety Signs
A universally recognised safety icon used to warn of materials or environments that pose a risk of explosion. This symbol typically features a burstin..
Symbol: ISO 7010: W002 - Explosive Material Safety Signs
Catalogue Page: 27 (EDITION 26)
Fragile Roof Symbol Safety Signs
Used to alert workers and visitors that the roof or surface they are about to access is fragile and cannot support their weight safely. This symbol us..
Symbol: ISO 7010: W036 - Fragile Roof Safety Signs
Catalogue Page: 30 (EDITION 26)
Guard Dog Symbol Safety Signs
A clear visual warning that a property is protected by one or more dogs trained to guard. The symbol - often showing a dog is head, sometimes with bar..
Symbol: ISO 7010: W013 - Guard Dog Safety Signs
Catalogue Page: 29 (EDITION 26)
Forklift Symbol Safety Signs
A widely recognised safety sign used to indicate areas where forklifts or other industrial lift trucks are in operation. It typically depicts a simpli..
Symbol: ISO 7010: W014 - Forklift Truck Safety Signs
Catalogue Page: 29 (EDITION 26)