"No Admittance, Authorised Personnel Only" Prohibition Sign

The “No Admittance, Authorised Personnel Only” Prohibition Sign delivers crystal-clear access control for every environment, from busy warehouses and research labs to corporate offices and server rooms. Its high-contrast visuals command attention at a glance, instantly communicating that entry is limited to authorised staff only. By preventing unauthorised access, this safety sign safeguards both personnel and sensitive operations without ambiguity.

Built for swift installation and enduring performance, this sign removes guesswork from your safety protocols. Whether you choose the rigid PVC model for outdoor exposure or the self-adhesive vinyl for quick indoor application, you can rely on consistent results every time. Backed by The Workplace Depot’s lowest-price guarantee and next-day delivery, securing your premises couldn’t be more straightforward. 

Our self-adhesive vinyl option features a high-tack bonding system engineered for challenging substrates, including textured walls, metal panels and painted surfaces. From dusty warehouses to vibration-prone factory floors, the adhesive locks down instantly, eliminating the need for additional fasteners or mounting brackets. Once applied, it stays put—no lifting corners, no curling edges, no reapplication hassles.

This robust grip dramatically cuts installation time, freeing up your maintenance team for other priorities. It also maintains a clean appearance, as there’s no visible hardware to detract from the clear safety message. With this strength at its core, the sign provides worry-free security in even the most demanding industrial settings. 

Crafted from 1 mm-thick, moisture-proof PVC, this sign stands up to rain, snow and direct sunlight without fading, warping or cracking. Its UV-resistant surface preserves the bright white background and vibrant red circle-slash, ensuring the message remains legible through changing seasons. Whether mounted on an exterior door or an exposed fence line, it retains its professional appearance year after year.

The rigid PVC substrate also resists impacts and abrasion, withstanding knocks from equipment or pedestrian traffic with minimal damage. This longevity translates into fewer replacements and lower lifecycle costs, helping you stay on budget without sacrificing safety. With minimal maintenance required, you can trust that your restricted-access warnings remain consistently visible and effective. 

Measuring a compact 300 (H) × 200 (W) mm, this rectangle slots neatly onto doors, walls or fences without obstructing adjacent signage or workspace. Its portrait orientation makes optimal use of vertical surfaces, ensuring the warning stays prominent yet unobtrusive. Whether mounted at eye level in a corridor or above machinery, it delivers a consistent warning footprint.

The slim profile adapts to narrow posts and panel edges, giving you flexibility in sign placement across various facility layouts. Despite its modest size, the layout affords ample white space around the text and symbol, preserving readability. This efficient design respects your environment while maintaining clear access control cues. 

Its polished, non-porous face provides the perfect canvas for crisp, high-resolution printing, ensuring text and symbols never blur or bleed. This finish also sheds dirt and grime, making routine cleaning quick and easy without compromising print quality. The result is a consistently professional appearance that speaks to your commitment to safety and order.

Over time, the smooth surface resists cracking, peeling and UV-induced fading, sustaining legibility through extended use. Whether exposed to harsh weather or heavy indoor traffic, it maintains its sharp visuals and protective message. Low maintenance requirements translate into fewer replacements and uninterrupted compliance.