Danger Unstable Structure Do Not Enter Sign
The signs below are suggestions only and are not included in your order. Nothing is added to your cart unless you choose it.
After a storm, fire or flood, a building can look fine from the street and give way inside. Councils and insurers order this sign in bulk when an event hits.
A danger sign to AS 1319: white DANGER in a red oval on a black band, black UNSTABLE STRUCTURE – DO NOT ENTER on white. Portrait sizes from 225 x 300 mm to 600 x 900 mm; corflute for quick post-event deployment, aluminium composite panel for a structure that will stand fenced for months. Confirm placement with your building surveyor or emergency coordinator.
Proudly Australian-made and finished with a protective matt laminate for glare-free readability and long outdoor life. Choose your size, material and finishing at checkout; both compliant and decorative material and size options are available. The sign is supplied on its own, with no screws, zip ties or fixings included.
Fix it to the fencing or door at every entry to the structure, at eye height, and at the street boundary where the public might approach. Pairs well with our Danger Demolition in Progress Keep Out and Danger Falling Objects Keep Out. Made to order and dispatched within a 2–3 day turnaround.
Vinyl Sticker
Premium self-adhesive vinyl with a high-quality printed, UV-resistant finish. Suitable for both indoor and outdoor use. Peel-and-stick application onto any clean, smooth, flat surface — glass, metal, painted walls, doors, or existing signage. The most economical option in the range, with no drilling or mounting required.
Corflute
High-quality corrugated polypropylene (fluted plastic) board. Lightweight, fully weatherproof, and rust-proof — suitable for both indoor and outdoor use. Easy to fix with screws, cable ties, or star pickets. A premium, cost-effective choice that's tough enough to handle the elements while staying easy to install.
Aluminium Composite Panel (ACP)
A premium rigid panel with a solid polyethylene core bonded between two aluminium sheets. Lightweight yet strong, fully weatherproof, and won't rust, warp, or fade. Suitable for both indoor and outdoor use, with a clean, flat, professional finish — ideal for long-term, high-quality signage.
Aluminium Metal
High-quality solid sheet aluminium — the most heavy-duty option in the range. Naturally rust-proof, impact-resistant, and built to last. Suitable for both indoor and outdoor use, delivering maximum durability and a premium finish in any environment.
Vinyl Sticker — Reflective
Premium self-adhesive reflective vinyl with a high-quality UV-resistant finish. Suitable for both indoor and outdoor use. Printed on Class 1 retroreflective sheeting that lights up brightly when hit by headlights or a torch, keeping the sign clearly visible at night and in low light. Peel-and-stick application onto any clean, smooth, flat surface — no drilling or mounting required.
Corflute — Reflective
High-quality corrugated polypropylene (fluted plastic) board finished with premium reflective sheeting. Lightweight, fully weatherproof, and rust-proof — suitable for both indoor and outdoor use. The reflective surface glows brightly under headlights or torchlight for clear visibility after dark. Easy to fix with screws, cable ties, or star pickets.
Aluminium Composite Panel (ACP) — Reflective
A premium rigid panel with a solid polyethylene core bonded between two aluminium sheets, finished with Class 1 reflective sheeting. Lightweight yet strong, fully weatherproof, and won't rust, warp, or fade. Suitable for both indoor and outdoor use. The reflective face lights up brightly at night for maximum visibility — ideal for long-term, high-quality signage.
Aluminium Metal — Reflective
High-quality solid sheet aluminium with a premium reflective finish — the most heavy-duty option in the range. Naturally rust-proof, impact-resistant, and built to last. Suitable for both indoor and outdoor use. The Class 1 retroreflective surface shines brightly under headlights or torchlight, delivering maximum durability and night-time visibility in any environment.
Discounts apply per product — buy more of the same sign to unlock each tier. They're applied automatically at checkout:
- Buy 25 or more of the same sign — 5% off
- Buy 50 or more of the same sign — 10% off
- Buy 100 or more of the same sign — 15% off
Please note: quantities are counted per individual product and cannot be combined across different signs to reach a tier.
All signs are made to order and dispatched from our Australian facility. Flat-rate shipping applies per order:
- Standard shipping — $25 (metro & most regional areas)
- Remote/express — $35
- FREE shipping on all orders over $500
Orders are typically processed within 2-3 business days. Delivery times vary by location across Australia.
The signs below are suggestions only and are not included in your order. Nothing is added to your cart unless you choose it.
After a storm, fire or flood, a building can look fine from the street and give way inside. Councils and insurers order this sign in bulk when an event hits.
A danger sign to AS 1319: white DANGER in a red oval on a black band, black UNSTABLE STRUCTURE – DO NOT ENTER on white. Portrait sizes from 225 x 300 mm to 600 x 900 mm; corflute for quick post-event deployment, aluminium composite panel for a structure that will stand fenced for months. Confirm placement with your building surveyor or emergency coordinator.
Proudly Australian-made and finished with a protective matt laminate for glare-free readability and long outdoor life. Choose your size, material and finishing at checkout; both compliant and decorative material and size options are available. The sign is supplied on its own, with no screws, zip ties or fixings included.
Fix it to the fencing or door at every entry to the structure, at eye height, and at the street boundary where the public might approach. Pairs well with our Danger Demolition in Progress Keep Out and Danger Falling Objects Keep Out. Made to order and dispatched within a 2–3 day turnaround.
Vinyl Sticker
Premium self-adhesive vinyl with a high-quality printed, UV-resistant finish. Suitable for both indoor and outdoor use. Peel-and-stick application onto any clean, smooth, flat surface — glass, metal, painted walls, doors, or existing signage. The most economical option in the range, with no drilling or mounting required.
Corflute
High-quality corrugated polypropylene (fluted plastic) board. Lightweight, fully weatherproof, and rust-proof — suitable for both indoor and outdoor use. Easy to fix with screws, cable ties, or star pickets. A premium, cost-effective choice that's tough enough to handle the elements while staying easy to install.
Aluminium Composite Panel (ACP)
A premium rigid panel with a solid polyethylene core bonded between two aluminium sheets. Lightweight yet strong, fully weatherproof, and won't rust, warp, or fade. Suitable for both indoor and outdoor use, with a clean, flat, professional finish — ideal for long-term, high-quality signage.
Aluminium Metal
High-quality solid sheet aluminium — the most heavy-duty option in the range. Naturally rust-proof, impact-resistant, and built to last. Suitable for both indoor and outdoor use, delivering maximum durability and a premium finish in any environment.
Vinyl Sticker — Reflective
Premium self-adhesive reflective vinyl with a high-quality UV-resistant finish. Suitable for both indoor and outdoor use. Printed on Class 1 retroreflective sheeting that lights up brightly when hit by headlights or a torch, keeping the sign clearly visible at night and in low light. Peel-and-stick application onto any clean, smooth, flat surface — no drilling or mounting required.
Corflute — Reflective
High-quality corrugated polypropylene (fluted plastic) board finished with premium reflective sheeting. Lightweight, fully weatherproof, and rust-proof — suitable for both indoor and outdoor use. The reflective surface glows brightly under headlights or torchlight for clear visibility after dark. Easy to fix with screws, cable ties, or star pickets.
Aluminium Composite Panel (ACP) — Reflective
A premium rigid panel with a solid polyethylene core bonded between two aluminium sheets, finished with Class 1 reflective sheeting. Lightweight yet strong, fully weatherproof, and won't rust, warp, or fade. Suitable for both indoor and outdoor use. The reflective face lights up brightly at night for maximum visibility — ideal for long-term, high-quality signage.
Aluminium Metal — Reflective
High-quality solid sheet aluminium with a premium reflective finish — the most heavy-duty option in the range. Naturally rust-proof, impact-resistant, and built to last. Suitable for both indoor and outdoor use. The Class 1 retroreflective surface shines brightly under headlights or torchlight, delivering maximum durability and night-time visibility in any environment.
Discounts apply per product — buy more of the same sign to unlock each tier. They're applied automatically at checkout:
- Buy 25 or more of the same sign — 5% off
- Buy 50 or more of the same sign — 10% off
- Buy 100 or more of the same sign — 15% off
Please note: quantities are counted per individual product and cannot be combined across different signs to reach a tier.
All signs are made to order and dispatched from our Australian facility. Flat-rate shipping applies per order:
- Standard shipping — $25 (metro & most regional areas)
- Remote/express — $35
- FREE shipping on all orders over $500
Orders are typically processed within 2-3 business days. Delivery times vary by location across Australia.