Parking Lot Sign: One Way Do Not Enter - 12" x 18" Engineered Aluminum

One Way Do Not Enter Parking Lot Sign – High-Visibility Reflective Aluminum for Traffic Control

The One Way Do Not Enter parking lot sign (Part# LS-11120) is a dual-message traffic control sign engineered for commercial parking lots, private roadways, and facility access points. Built on 63 mil thick aluminum with 3M reflective sheeting, it delivers clear directional guidance to drivers entering or exiting controlled traffic lanes. Available in multiple reflective grades and two sizes, this sign is suited for contractors, property managers, and facilities professionals who require durable, code-appropriate signage for long-term outdoor installation.

Technical Specifications

Unlike standard painted or plastic signs, this sign combines heavy-gauge 63 mil aluminum construction with genuine 3M reflective sheeting — available in Engineer Grade, Hi Intensity, or Diamond Grade — giving contractors the flexibility to match site-specific visibility requirements. The laminated face adds a protective layer that extends service life in high-traffic outdoor environments where lesser signs fade or delaminate prematurely.

Key Features & Benefits

3M Reflective Sheeting Options

Three reflective grades are available — Engineer Grade, Hi Intensity, and Diamond Grade — allowing you to select the appropriate level of nighttime and low-light visibility for the installation environment. Higher-grade sheeting is particularly valuable in poorly lit parking structures or high-speed entry lanes where driver reaction time is critical.

63 Mil Thick Aluminum Construction

The heavy 63 mil aluminum substrate resists bending, warping, and impact damage that thinner signs cannot withstand in active parking lot environments. This gauge is appropriate for permanent post-mounted or wall-mounted installations where sign integrity must be maintained over years of outdoor exposure.

Laminated Face for Superior Durability

The laminated surface protects the printed graphics and reflective sheeting from UV degradation, moisture, and abrasion. This extends the readable service life of the sign and reduces the frequency of replacement on long-term job sites or managed properties.

Rounded Corners and Pre-Punched Mounting Holes

Rounded corners eliminate sharp edges that can cause injury during handling and installation. Pre-punched mounting holes allow for immediate installation without additional drilling, saving time on the job site.

Common Applications

Commercial Parking Lot Traffic Control

Directs drivers through one-way traffic lanes and prevents wrong-way entry at parking lot access points, reducing the risk of vehicle conflicts.

Private Road and Facility Access Management

Used at entry and exit points of private roads, loading docks, and facility driveways to enforce directional traffic flow for employees and visitors.

Parking Structure Lane Designation

Installed in multi-level parking garages to clearly mark one-way ramps and restricted entry points where driver visibility may be limited.

Retail and Industrial Site Signage

Suitable for retail centers, warehouses, and industrial campuses requiring permanent, weather-resistant directional signage for vehicle traffic management.

Compatible Materials

• Post-mounted sign installations (round or square posts)
• Wall and fence-mounted applications
• Outdoor environments requiring UV and weather-resistant signage
• Parking lots, private roads, and facility access points