Height Requirements for Safety Signs in Australia
The standard safety sign height in Australia is 1500mm to 1800mm from finished floor level to the bottom edge of the sign. This range aligns with AS 1319 and ensures signs sit within the natural line of sight before hazard exposure.
Correct mounting height improves hazard recognition, supports workplace compliance, and reduces inspection risk.

What Are the Height Requirements for Safety Signs in Australia?
Most workplace safety signs must be mounted between 1500mm and 1800mm to the bottom edge.
This height places signage within normal adult eye level in offices, warehouses, retail environments, factories, and public buildings. It supports faster recognition before a worker reaches the hazard.
This range applies to standard wall-mounted signage. It does not replace specific requirements for emergency exit or tactile signs. Mounting outside this band without justification increases compliance risk.
Why is 1500mm to 1800mm considered the Ideal Height?
The ideal safety sign height in Australia is 1500mm to 1800mm because it aligns with the average adult eye level.
Workers scan forward as they move through a space. Signs placed within this central visual field are recognised faster than signs positioned too high or too low. Faster recognition reduces exposure time and supports the intent of AS 1319.
If you mount signs below 1200mm, they fall outside normal scanning patterns. If you mount them above 1900mm, they may sit above the primary line of sight. Height should guide behaviour before risk occurs.
What Is the Minimum Height for Warning and Prohibition Signs?
Warning and prohibition signs should generally not be installed below 1500mm from finished floor level unless a documented risk assessment justifies lower placement.
These signs must appear at the decision point. Workers should see the sign before entering the hazard zone, not after exposure begins.
Correct positioning includes:
- Machine guarding warnings before operator access
- Restricted area signage before entry
- Construction entry signage is visible before stepping onto the site
Lower mounting may be required for machinery-level hazards or child-focused environments. If you vary from the standard range, record the reason in your safety documentation.
What Is the Maximum Height for Wall Mounted Safety Signs?
Wall-mounted safety signs should generally not exceed 1800mm to 1900mm from the bottom edge.
Mounting signs too high reduces legibility and makes upward scanning less likely. During inspections, excessive height often raises compliance concerns because visibility becomes harder to defend.
Industrial settings may require overhead signage. In those cases, clearance and viewing distance must be assessed together. Higher placement requires larger sign formats to maintain readability.
How High Should Emergency and Exit Signs Be Installed?
Emergency and exit signs must typically be installed at least 2000mm above finished floor level and positioned above doorways or along egress paths.
The National Construction Code requires exit signage to remain visible along the full evacuation route. Signs must not be blocked by shelving, door swings, or lighting fixtures.
This rule applies specifically to evacuation signage and does not replace the standard eye-level rule for hazard signage.

What Is the Required Mounting Height for Braille and Tactile Signs?
Braille and tactile signs must be mounted between 1200mm and 1600mm above finished floor level under AS 1428.1.
They must be placed on the latch side of the door and within reachable range. Incorrect positioning frequently fails building access audits.
Accessibility requirements are legally enforceable. Incorrect height can result in rectification notices.
Does Safety Signs Height Differ in Warehouses and Industrial Facilities?
In warehouses, wall-mounted hazard signs should remain within the 1500mm to 1800mm eye level range wherever practical.
Where overhead signage is required across aisles or traffic lanes, clearance must be at least 2000mm above finished floor level to reduce collision risk and support compliance with WHS Regulations.
Height adjustments must consider racking systems, forklift traffic, and viewing distance. If the mounting height increases, the sign size and contrast must also increase.
What Height Should Construction Site Signs Be Installed?
Construction entry and compliance signage should generally be mounted between 1500mm and 1800mm from finished floor level to the bottom edge.
Signs must face approaching pedestrians and vehicles and be visible before entry onto the site. Mounting too high reduces readability. Mounting too low increases the risk of obstruction by vehicles or barriers.
Correct height strengthens hazard communication and supports compliance during inspection.

What Do WorkSafe Inspectors Check During a Signage Audit?
Inspectors check whether safety signs are installed within recognised compliance height ranges measured from the finished floor level.
They assess:
- Accurate measurement
- Clear line of sight
- Placement before hazard exposure
- Sign condition and durability
- Alignment with documented risk assessments
Height is objective and measurable, which makes it one of the most frequently reviewed compliance elements.
Practical Installation Checklist
Use this checklist during installation:
- Measure from the finished floor level.
- Confirm the bottom edge sits between 1500mm and 1800mm unless an exception is documented.
- Ensure overhead signage maintains at least 2000mm clearance.
- Check that no obstruction blocks visibility.
- Position signage before hazard exposure.
- Record measurements in workplace safety documentation.
Documented measurement improves audit readiness and compliance defensibility.
Frequently Asked Questions
Q. What is the legal height for safety signs in Australia?
Most workplace safety signs are mounted between 1500mm and 1800mm from finished floor level to the bottom edge, consistent with AS 1319 visibility intent.
Q. Is 2 metres required for all signs?
No. Two metres generally applies to emergency exit signage and overhead clearance, not standard wall-mounted hazard signs.
Q. Do installation heights vary between states?
Core visibility principles under AS 1319 apply nationally, though enforcement occurs through state WorkSafe authorities.
Q. Are installation heights checked during inspections?
Yes. Inspectors measure whether signs fall within accepted compliance height ranges during audits.
Q. Can safety signs be mounted lower than 1500mm?
Yes, but only where a documented risk assessment justifies installation below the standard eye level range.
Takeaway
The height requirements for safety signs in Australia focus on visibility before hazard exposure. Mount most wall-mounted workplace signs between 1500mm and 1800mm, apply specific rules for exit and tactile signage, and document all measurements.
Correct installation height improves hazard recognition and reduces compliance risk under AS 1319 and workplace safety obligations.

