Delineator Posts — Flexible, Durable Traffic Control That Bounces Back

Delineator posts are HDPE plastic traffic control posts designed to flex upon impact and regain their original shape, protecting lanes, directing traffic, and reducing the likelihood of accidents without incurring the damage expenses associated with rigid barriers. Used all over the United States in locations where precise lane defining is important, such as drive-thru lanes, bike lanes, valet parking lots, curbside pickup zones, and service roads.

What Are Delineator Posts?

In locations where rigid bollards or permanent barriers are impractical, a delineator post—a flexible HDPE plastic traffic control post—is intended to designate car and bicycle lanes, direct traffic flow, and enhance visual awareness. A flexible delineator post, in contrast to steel posts, absorbs vehicle impact from any angle and returns to its upright position, minimizing damage to both the post and the vehicle and doing away with the expense of replacing and repairing rigid barriers.

Bollard and Sleeves delineator posts come in 36-, 42-, and 48" heights with a 2-1/4" OD post diameter. They are composed of high-density polyethylene and have 360 degrees of flexibility. For sturdy, no-tool installation on any level surface, each delineator post with base comes with a weighted base that is 1-7/8" high by 8" wide. There are two color options: yellow and white, with reflective striping in either yellow or white/silver for visibility at night and in low light. Any location that requires lane definition, pedestrian separation, or vehicle direction without a permanent installation can benefit from traffic delineator posts in this range.

Where Are Delineator Posts Used?

• Drive-thru lanes & ordering queues
• Curbside pickup & delivery zones
• Bike lanes & pedestrian paths
• Valet parking & drop-off areas
• Service roads & access routes
• Parking lots & garage entries
• Pick-up lanes & school drop-off zones
• Temporary traffic control & event management

When lane separation is urgently needed without the requirement for permanent installation or excavation, as well as when vehicle contact is expected and low repair costs are required, delineator posts are the preferred option.

How to Choose the Right Delineator Post

Height: 36", 42", or 48"

The three heights are suitable for various application and visibility needs. The smallest choice is the 36" delineator post, which is ideal for low-speed zones, bike lanes, and pedestrian zones where a smaller profile is desired. When conventional vehicle-height visibility is needed in drive-thrus, parking lots, and curbside pickup zones, the 42" post is the most popular option. For wide lanes, higher-speed service roads, and any location where drivers must see the post from a larger distance, the 48" traffic delineator post offers optimal visibility.

Color: White or Yellow

The most noticeable option for drive-thrus, parking lots, and any mixed-use location is yellow, which is the traditional color for active traffic lane separation. White is appropriate for spaces like valet parking lots, architectural storefronts, and pedestrian-priority zones where a more clean, less industrial image is needed. All three heights are available in both colors.

Standard or High-Visibility Reflective Striping

Reflective striping greatly increases delineator post visibility after dark for locations with nighttime traffic, low light levels, or poor ambient visibility. There are two colors of reflective striping: yellow and white/silver. Striping is added to the post prior to shipment, so choose your color at checkout.

Base: Stable and Weighted

Each delineator post with base comes with a weighted base that is 1-7/8" high by 8" wide. Without the need for tools, adhesives, or anchor bolts, the base offers sturdy upright posture on any flat surface. There is no need for on-site assembly because the flexible delineator post and base are made as a single item.

360-degree flexibility

Every delineator post in this range flexes 360 degrees upon impact, regardless of the approach angle, and returns to its upright position, in contrast to inflexible steel or concrete delineators. This keeps lanes clearly delineated even in high-traffic areas, eliminates car damage from glancing contact, and lowers subsequent replacement costs.

Ready to define your lanes? Get a Free Quote → or call 1-800-914-4771

Why Buyers Choose Our Delineator Posts

360° Flexibility — Hits From Any Angle

• Flexes on impact and returns to upright position
• No damage to vehicles on contact
• Eliminates costly post replacement after every strike
• Suited to high-traffic and high-contact environments

HDPE Plastic — Holds Color, Limits Maintenance

• Color built into the material — does not fade or chip
• No painting or recoating required
• UV-resistant for permanent outdoor use
• Significantly lower maintenance cost vs rigid barriers

Three Heights — One System

• 36”, 42”, and 48” in stock
• Yellow and White available in all heights
• Reflective striping available on all models
• Mix heights across a single site for zoned visibility

Delineator Post with Base — No Tools, No Anchors

• Weighted 8” base included with every post
• Stable on any flat surface without tools or adhesives
• Reposition or remove without excavation
• Ships ready to place — no on-site assembly

In-Stock — Ships in 3–5 Days

• Standard inventory in all heights and colors
• Bulk pricing from 10 units
• Net 30 for qualified government, school, and contractor accounts
• Ships to all 50 states from our US warehouse

Frequently Asked Questions

Q: What is a delineator post and how does it work?

A: In places where solid barriers are impractical, a delineator post—a flexible HDPE plastic post—is used to mark traffic lanes, direct cars, and enhance visual awareness. The flexible delineator post keeps the lane clearly demarcated while reducing harm to both the car and the post by bending upon impact and returning to its upright position.

Q: What heights are delineator posts available in?

A: Three heights of delineator posts are available: 36", 42", and 48". The 36" post is appropriate for low-speed pedestrian zones and bike lanes. The most popular option for parking lots and drive-thrus is the 42". For service highways and high-speed or wide-lane applications where optimal visibility is necessary, the 48" traffic delineator post is advised.

Q: Do delineator posts come with a base?

A: Yes, a weighted base measuring 1-7/8" high by 8" wide is included with every delineator post with base. Without the need for tools, adhesives, or anchor bolts, the base offers sturdy upright posture on any flat surface. The post and base ship as a single, ready-to-place unit, requiring no on-site assembly.

Q: What colors and reflective options are available?

A: White and yellow delineator posts are available. For better visibility at night and in poor light, reflective striping is offered in yellow or white/silver. Striping is applied prior to shipping, so please indicate your preferred color and style during the checkout process.

Q: How durable are delineator posts outdoors?

A: HDPE plastic with UV-resistant additives is used to make each delineator post. Under typical outdoor conditions, the material's inherent color won't fade, chip, or peel. Because of its 360-degree flexibility, repetitive vehicle contact does not deteriorate the post; instead, it regains its shape after each impact, greatly lowering the frequency of replacement as compared to rigid alternatives.

Q: How much do delineator posts cost?

A: All three heights and colors of delineator posts are reasonably priced. Net 30 periods are available for eligible government, school, and contractor accounts, and bulk pricing starts at 10 units. For a quote, get in touch with our staff; we reply within a business day.

Q: What is the lead time, and do you ship to all 50 states?

A: Our US warehouse ships in-stock delineator posts in three to five business days. We ship to every state in the union. Before placing a purchase, get in touch with our staff to find out if large-volume orders are available.

Define Your Lanes. Cut Your Repair Costs. Install in Minutes.

Your quote will be available in one business day if you let us know your height, color, and quantity. Each delineator post comes with a weighted base, flexes when struck, and doesn't require any equipment to install.

Start My Delineator Post Order Call 1-800-914-4771

In-Stock · Ships in 3–5 Days · Bulk Pricing from 10 Units · Net 30 for Gov

Looking for a specific height, color, or application? Explore the full range:

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36” Delineator Posts | 42” Delineator Posts | 48” Delineator Posts | Reflective Delineator Posts

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Drive-Thru Lane Posts | Bike Lane Posts | Parking Lot Posts | Curbside Pickup Posts