Bold Safety Signs
Warning Isolate Before Opening Door Sign
Warning Isolate Before Opening Door Sign
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Complete Your Safety Setup
Signs that are often installed together. We match your selected size, material and finish where available.
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Warning Keep Aisles Clear Sign From $16.50 -
Warning Keep This Space Clear Sign From $16.50 -
Forklift Access Only – No Passageway Sign From $16.50 -
Warning Natural Gas Isolation Valve Below Sign From $16.50
The Warning Isolate Before Opening Door Sign from Bold Safety Signs reminds workers to isolate power or machinery before opening an access door or guard.
Ideal for: machine guards, switch cabinets, plant room doors and conveyors.
About this sign
Warning signs alert people to hazards that are not likely to be life-threatening but still need attention. Black wording and symbols on a bright yellow background stand out indoors and out.
Choose your material
- Colorbond – rigid pre-painted steel. Our toughest option for permanent outdoor installation on fences, gates and walls.
- Corflute – lightweight fluted polypropylene. Weatherproof and economical, ideal for temporary sites and short-term projects.
- PVC Foam Board – smooth, rigid and lightweight. A clean finish for indoor walls, doors and sheltered outdoor areas.
Choose your finish
- Non-Reflective – standard printed finish for well-lit areas.
- Reflective – reflective sheeting that stays visible in headlights and low light, ideal for car parks, roadsides and night works.
Available sizes
- 450 × 300 mm
- 600 × 450 mm
Complete your safety setup
- Warning Keep Aisles Clear Sign
- Warning Keep This Space Clear Sign
- Forklift Access Only – No Passageway Sign
- Warning Natural Gas Isolation Valve Below Sign
Browse our full range of warning signs. Can't find the exact wording you need? Design a custom safety sign. Free standard shipping Australia-wide on orders of $149 or more – see our shipping policy.
