Solid as a Rock: Constructing Engineered Natural Stone Retaining Walls
This course is no longer active. AEC Daily will not report completion information for this course.
Humans have been building successfully with natural stone for thousands of years, but there are still some misconceptions about dry-stacked stone retaining wall construction. This course addresses these misconceptions and introduces best practices for wall design and construction, the Federal Highway Administration and Associated Rockery Contractors guidelines and laboratory testing standards, and many key natural stone facts and sustainability attributes. It concludes with a number of illustrated case studies.
Upon completion of this course, the Learner should be able to:
- Override the misconceptions regarding natural rock retaining walls when designing them.
- Utilize the correct quality design and construction standards for rock retaining walls.
- Identify the correct testing protocols to ensure long-term wall performance and stability.
- Specify the correct type of dry-stacked stone retaining wall for various purposes.
- Design dry-stacked natural stone retaining walls that are both functional and aesthetically pleasing.
Approximately 1 hour, 15 minutes. Delivered online, at your own pace.
Presented by Ray Rogers JR. on behalf of Rockworks LLC. View the Privacy Policy .
Presenter Information

Name: Ray Rogers JR.
Title: President/Landscape Designer, Rockworks LLC
Background: Ray has worked in the landscape industry for 53 years, 47 of them in business setting standards for engineered natural stone walls in Michigan. He introduced the ARC Rockery standards to the Michigan landscape industry. He has lectured at MSU landscape conferences and been invited to present lunch-and-learns to large LA, architecture, and engineering offices in Michigan. His company has won many Detroit Home Awards and industry awards, including one for 50 years in the industry from MNLA and one from the Michigan chapter of the ASLA for contributions to the industry including stones, techniques, and best practices. He will continue to raise the bar on stone retaining wall standards and educate both industry members and townships, local governments, and municipalities. Ray is available for speaking engagements and as a freelance consultant on projects in Michigan and beyond.