Warning Unstable Cliff Edge Sign | Hazard Signs
Product Summary
Ensure maximum site safety and compliance with the Warning Unstable Cliff Edge Sign—a vital addition to any location where dangerous drops or unstable terrain pose a serious risk. Designed for construction sites, industrial areas, coastal paths, and public spaces, this hazard sign warns personnel and visitors of the potential danger posed by a cliff edge. Featuring the universally recognised yellow and black warning triangle with bold, easy-to-read text, this sign helps reduce the risk of accidents and reinforces your safety protocols.
Whether you're managing a construction project near hazardous terrain or overseeing public access routes in natural environments, this sign is an essential part of your site’s safety signage suite. It complements other critical signs such as a danger sign, high voltage sign, toxic hazard sign, biohazard warning, or slippery surface sign, helping you create a fully compliant and clearly marked safety zone.
Material & Print Options
Our Warning Unstable Cliff Edge Sign is available in two durable material options to suit both indoor and outdoor use:
- Adhesive Vinyl: Ideal for smooth, clean surfaces such as metal, glass, or painted walls. This self-adhesive option is quick to apply and perfect for temporary or semi-permanent installations.
- 3mm Rigid PVC: A robust, weather-resistant option suitable for long-term outdoor use. This durable plastic material maintains its visibility and integrity in tough site conditions.
Both materials are printed using high-contrast, fade-resistant inks to ensure your warning message remains clear and legible over time.
Installation Info
For flexibility and ease of installation, our Warning Unstable Cliff Edge Sign is supplied without fixings. This allows you to choose the most appropriate mounting solution for your environment, whether using adhesive pads, screws, cable ties, or sign frames. The sign is lightweight and easy to position at key access points, entryways, or along cliffside barriers where immediate visibility is critical.
Delivery & Lead Times
We understand the importance of timely delivery when it comes to safety signage. That’s why we offer:
- Standard Delivery: 5 working days
- Express Options: Next-day, 48-hour, and 72-hour delivery available at checkout
Orders placed before our daily cutoff time are eligible for same-day dispatch. Our dedicated support team is on hand 18 hours a day to help you select the right delivery option for your project timeline.
Why Choose This Sign
- Compliance: Meets UK safety signage regulations, helping you maintain a legally compliant and risk-aware worksite.
- High Visibility: Bright yellow background and bold black graphics ensure maximum visibility in all lighting conditions.
- Durable Materials: Choose from adhesive vinyl or 3mm rigid PVC, both designed to perform in challenging environments.
- Versatile Use: Suitable for construction sites, coastal paths, public access areas, and industrial zones.
- Part of a Full Safety Range: Complements other essential signs like danger signs, biohazard warnings, high voltage signs, and slippery surface signs.
Don’t leave safety to chance—clearly mark hazardous areas and prevent accidents with our highly effective Warning Unstable Cliff Edge Sign.
Order now to protect your workforce, comply with regulations, and ensure your site is properly marked and secure.
Material Weight: Rigid PVC Panel (5mm) – Industrial-grade, impact-resistant substrate suitable for prolonged outdoor deployment on construction and industrial sites.Removable Vinyl Film (180 GSM) – High-tack adhesive for secure placement with clean, residue-free removal, ideal for short-term or rotating safety messaging.Material Surface: Matte, Anti-Glare Coating – Ensures maximum legibility in high-light environments, prevents reflection from site lighting or direct sunlight, and maintains a professional non-shiny appearance.


How long will it take to receive my safety signs?
Our standard delivery time is 5 working days from artwork approval. Express turnaround options are available upon request.
Do you have ready-made designs?
Yes, we have pre-made templates for construction navigation signs, hazard warnings, PPE reminders, directional signs, and more. These can be customised with your logo or wording.
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Can you print custom safety signs?
Yes, you can provide your own design or work with our design team to create a bespoke safety sign.
What materials do you offer?
We offer Rigid 5mm Foam Board for long-term durability and Temporary Adhesive Vinyl Stickers for short-term use.
Are your safety signs weatherproof?
Yes, both materials are UV-resistant and waterproof, suitable for outdoor use in all weather conditions.
What sizes do you offer?
We produce safety signs in standard universal sizes as specified for each type of sign, ensuring compliance and visibility requirements are met.
Do your signs meet UK safety regulations?
Yes, our signs comply with BS EN ISO 7010 standards for workplace safety signage.
Can you add our company logo or brand colours?
Yes, we can customise any sign to include your branding while keeping it compliant with safety standards.
Do you offer bulk discounts?
Yes, we offer tiered pricing for larger orders. Contact us for a customised quote.
How do I place an order?
Select a template or upload your design, choose your material and size, and place your order online. We’ll confirm a proof before printing.