Our Guide to Convex & Concave Curved Guardrail Panels

As the national leader in highway guardrails and roadside safety, it is important to understand the difference between the two types of guardrail panels, convex and concave. Let’s look at our comprehensive guide.

Concave vs. Convex Guardrail

Gregory Highway’s curved guardrail sections can be fabricated with a radius of 5 feet to 150 feet. The terms “concave” and “convex” refer to the direction curved, inward or outward, relative to the traffic face of the guardrail.

Also known as a W-Beam guardrail, they are designed with two humps and a valley. The humps face towards the traffic (i.e. convex) lane, while the valley (i.e. concave) faces away from the traffic lane.

Calculating a Highway Guardrail Radius

The most commonly used curved guardrail measures 12 feet by 6 inches, but we offer various options to meet your guardrail specifications. With our step-by-step guide and guardrail radius chart, we can help you calculate the radius for your specific highway needs.

Partner With Us

As a leading guardrail manufacturer, it is our job to help make the roads safer. Our commitment to excellence, continuous galvanizing technology and constant drive to improve are reasons why you should choose Gregory Highway. Explore our guardrail panel products or contact us on how we can help with your highway safety products.