Platinum Signs
Construction Site — Unauthorised Persons Keep Out Sign
PSS-LC-CNS-0001 · Product data sheet
Data sheet
5 August 2026
https://www.platinumsigns.com.au
Description
Construction Site — Unauthorised Persons Keep Out is a red-oval DANGER-format sign complying with AS 1319. It enforces site access control and supports your principal contractor's duty under WHS Regulation 308 and the Model Code of Practice: Construction Work. Install at every perimeter entry and gate to prevent unauthorised entry and clarify site boundaries. Available in colorbond, polypropylene, aluminium, and vinyl across three sizes (300×450 mm, 450×600 mm, 600×900 mm). Reflective Class 1 and Class 2 options enhance visibility in low-light conditions. Holes and lamination support flexible mounting. Trade accounts receive bulk pricing and priority delivery Australia-wide. Order multiple units for comprehensive site coverage.
Final sign type, wording, size, placement and material depend on the site risk, project specification and applicable jurisdiction. Confirm the requirement with the relevant WHS adviser or regulator.
- Category
- Legal Compliance Signs
- Sign selection
- Confirm against site requirements
- Artwork
- Off-the-shelf design supplied as shown
- Product code
- PSS-LC-CNS-0001
Available materials
| Material | Specification |
|---|---|
| Colorbond Steel (0.6mm) | Rigid coated sheet steel suited to demanding indoor and outdoor installations. Print life depends on finish, exposure, edges and mounting. Indicative service life: Long-term substrate; print and site conditions apply. Typical use: Permanent installations, harsh environments. |
| Polypropylene (1.6mm) | Rigid plastic sheet suited to indoor and sheltered or general outdoor applications, subject to the print finish and site exposure. Indicative service life: Medium-term use; site conditions apply. Typical use: Warehouses, factories, permanent indoor/outdoor. |
| Aluminium (1.6mm) | Rigid aluminium sheet suited to long-term signage where corrosion resistance and dimensional stability matter. Indicative service life: Long-term substrate; print and site conditions apply. Typical use: Permanent outdoor installations and high-durability sites. |
| Self-Adhesive Vinyl (Sticker) | Peel-and-stick vinyl for smooth surfaces. Walls, doors, machinery, and equipment labelling. Indicative service life: Short- to medium-term use; surface and exposure affect service life. Typical use: Indoor walls, equipment labels, smooth surfaces. |
Available sizes
- • 300 x 450mm (Medium)
- • 450 x 600mm (Large)
- • 600 x 900mm (Extra Large)
Volume pricing — Polypropylene (1.6mm) · 300 x 450mm (Medium) (inc. GST)
| Quantity | Unit price | Saving |
|---|---|---|
| 1-4 | $31.95 | — |
| 5-9 | $29.39 | -8% |
| 10-24 | $27.16 | -15% |
| 25-49 | $24.28 | -24% |
| 50-99 | $21.73 | -32% |
| 100+ | $19.17 | -40% |
Prices shown for the listed material/size combination. Full configuration pricing is available at https://www.platinumsigns.com.au/safety-signs/legal-compliance/construction-site-unauthorised-persons-keep-out.
Frequently asked
Do I need this sign if I have a principal contractor sign?
Yes. The principal contractor sign (name, contact, office location) and this Keep Out sign serve different purposes — one identifies management, the other controls access. Install both at the site perimeter.
Which material is best for a long-term construction site?
Colorbond (0.55 mm) or aluminium (1.6 mm) offer excellent durability in outdoor conditions. Polypropylene suits shorter-term or sheltered sites; vinyl is best for smooth flat surfaces.
What size should I choose?
Available sizes are 300 x 450mm (Medium), 450 x 600mm (Large), 600 x 900mm (Extra Large). Viewing-distance notes are a practical selection aid, not a substitute for checking the approach distance, lighting, mounting position, wording and site risk assessment.
Is reflective material worth the cost?
Reflective grades provide different visibility performance. Choose the grade required by the project specification and site conditions, and confirm any road, traffic or high-risk requirement with the relevant authority before ordering.
How many signs do I need?
Install one at every perimeter entry and gate. For a typical 100 m × 100 m site, 4–6 signs are common. We offer bulk discounts on larger orders.
Can I customise this sign?
The AS 1319 DANGER format is fixed, but you can specify material, size, reflective grade, and mounting holes. Contact us for site-specific requirements.