Private Property Sign: No Trespassing - 12" x 18" Aluminum

Private Property No Trespassing Sign – 3M Engineer Grade Reflective Aluminum

The Private Property No Trespassing Sign (Part# LS-11499) is a 12" x 18" vertical aluminum sign manufactured with 3M Engineer Grade reflective sheeting for high-visibility performance in low-light and nighttime conditions. Designed for contractors, property managers, and trades professionals, it is built to withstand outdoor environments with a laminated finish and heavy-gauge aluminum substrate. Pre-punched mounting holes and rounded corners allow for fast, tool-ready installation on posts, fences, or structures. This sign is an ideal solution for clearly marking restricted access areas on job sites, private land, and commercial properties.

Technical Specifications

Unlike standard painted or non-reflective aluminum signs, this sign uses 3M Engineer Grade reflective sheeting, providing enhanced nighttime and low-light visibility that non-reflective alternatives cannot match. The laminated finish adds a protective layer that extends the sign's service life in harsh outdoor conditions, making it a more durable long-term investment for job site and property boundary marking.

Key Features & Benefits

3M Engineer Grade Reflective Sheeting

The 3M Engineer Grade reflective surface ensures the sign is clearly visible to drivers and pedestrians in low-light and nighttime conditions. This level of reflectivity is critical for job sites and private properties where after-hours visibility is required to deter trespassers and reduce liability.

63 Mil Heavy-Gauge Aluminum Substrate

At 63 mil thickness, this aluminum sign resists bending, warping, and impact damage that thinner signs are prone to in outdoor environments. The heavy-gauge construction ensures the sign maintains its shape and legibility over extended periods of outdoor exposure.

Laminated Finish for Superior Durability

The laminated surface protects the sign face from UV degradation, moisture, and abrasion, extending its usable life in demanding outdoor conditions. Contractors can rely on this finish to maintain color contrast and readability without frequent replacement.

Pre-Punched Holes and Rounded Corners

Factory-installed mounting holes and rounded corners eliminate the need for on-site drilling and reduce the risk of sharp edges during handling and installation. This allows for faster deployment across multiple sign locations on a job site or property.

Common Applications

Construction Job Site Perimeter Marking

Post this sign at entry points and boundaries of active construction sites to restrict unauthorized access and reduce liability exposure.

Private Land and Property Boundaries

Clearly mark the edges of private property to notify the public and deter trespassers from entering restricted land.

Commercial and Industrial Facility Access Control

Install at gates, fences, and access roads of commercial or industrial facilities to enforce no-trespassing policies.

Vacant Lot and Undeveloped Property Security

Use on vacant or undeveloped parcels to establish visible legal notice of private ownership and restricted access.

Compatible Materials

• Wood fence posts and rails
• Metal T-posts and U-channel sign posts
• Chain-link fencing
• Concrete and masonry walls (with appropriate hardware)
• Steel and aluminum structural members