Parking Lot Sign: One Way Do Not Enter

Parking Lot Sign: One Way Do Not Enter — 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 facilities, private lots, and access-controlled driveways. Constructed from 63 mil thick aluminum with 3M reflective sheeting, it delivers clear directional guidance to drivers in both daylight and low-light conditions. Designed for contractors and facilities managers who need a durable, code-compliant signage solution, this sign is available in multiple reflective grades to match site-specific visibility requirements. Rounded corners and pre-punched mounting holes allow for fast, straightforward installation on standard sign posts or mounting hardware.

Technical Specifications

Unlike standard non-reflective signs, this sign is available in three distinct 3M reflective grades — Engineer Grade, Hi Intensity, and Diamond Grade — allowing contractors to select the appropriate level of nighttime visibility for the specific demands of the installation site. The 63 mil aluminum substrate and laminated face provide a level of structural rigidity and weather resistance that outperforms thinner, non-laminated alternatives commonly found in general retail channels.

Key Features & Benefits

3M Reflective Sheeting Options

Available in 3M Engineer Grade, Hi Intensity, and Diamond Grade reflective aluminum, this sign can be specified to meet the visibility demands of any parking environment. Higher-grade reflectivity ensures drivers can read the sign clearly at night or in adverse weather, reducing the risk of wrong-way incidents.

63 Mil Thick Aluminum Construction

The heavy-gauge 63 mil aluminum substrate resists bending, warping, and impact damage in high-traffic areas. This thickness provides the rigidity needed for post-mounted installations where wind load and physical contact are ongoing concerns.

Laminated Face for Superior Durability

The laminated surface protects the reflective sheeting and printed graphics from UV degradation, moisture, and abrasion. This extends the service life of the sign and reduces the frequency of replacement in outdoor installations.

Rounded Corners and Pre-Punched Mounting Holes

Rounded corners eliminate sharp edges that could pose a safety hazard during handling and installation. Pre-punched holes allow contractors to mount the sign directly to standard sign posts or brackets without additional drilling, saving time on the job site.

Dual-Message Design

The combined One Way / Do Not Enter message on a single sign consolidates two critical traffic directives into one panel, reducing hardware costs and simplifying installation in tight or constrained mounting locations.

Common Applications

Commercial Parking Lot Traffic Control

Directs vehicle flow through one-way drive aisles in shopping centers, office complexes, and retail parking facilities to prevent head-on conflicts.

Private Driveway and Access Control

Marks restricted or one-directional entry and exit points on private property, helping property managers enforce traffic patterns without physical barriers.

Parking Garage Installations

Used at ramp entries and exits within structured parking garages where clear directional signage is critical for driver safety in confined spaces.

Hospital and Campus Parking Areas

Supports organized traffic flow in high-volume institutional parking environments where pedestrian and vehicle conflicts must be minimized.

Compatible Materials

• Standard round sign posts
• U-channel sign posts
• Square tube sign posts
• Wall or fence mounting brackets
• Overhead sign mounting hardware

Frequently Asked Questions

Q: What is the difference between the three reflective material grades?
A: The three options — 3M Engineer Grade, 3M Hi Intensity, and 3M Diamond Grade — represent increasing levels of nighttime reflectivity. Engineer Grade is suitable for standard parking lot applications, Hi Intensity provides greater visibility at wider angles, and Diamond Grade offers the highest retroreflective performance for sites with demanding visibility requirements.

Q: Do the signs come with mounting hardware?
A: The signs include pre-punched holes for mounting but do not include post hardware. They are designed to be compatible with standard sign post systems used by contractors.

Q: What sizes are available?
A: This sign is available in 12" x 18" and 18" x 24" sizes to accommodate different installation locations and viewing distances.

Q: Is the sign suitable for outdoor use?
A: Yes. The 63 mil aluminum construction and laminated face are designed for permanent outdoor installation and provide resistance to weather, UV exposure, and physical wear.