Company Info
Middle Block:
Limestone Face


Face: 46" long x 18" high
5.75 sq. ft. of face

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About Redi-Rock International

For years, the retaining wall industry was dominated by labor intensive small block systems that required costly and labor-intensive geogrid tiebacks. But in 2000, Redi-Rock International introduced a revolutionary product line that has changed the way engineers and contractors will look at retaining walls forever. Massive, natural looking rock faces accompanied by an efficient installation system have made Redi-Rock the leader in the big block retaining wall industry.

Redi-Rock International was born out of MDC Contracting, a small, family-owned road building and ready mixed concrete company in Northern Michigan. Ernest Manthei, founder of the company, passed on the business to his sons Jim, Mark, and Ben Manthei and the company’s values of honesty and integrity have allowed them to develop a solid reputation for quality work.

In the midst of a construction boom in 1998, Jim Manthei began experimenting with the idea of a big block retaining wall system built entirely from wet cast concrete. In contrast to the small, drycast blocks on the market at the time, Redi-Rock’s massive size, aesthetically pleasing quarried stone faces, and revolutionary knob and groove connections allowed tall walls to be built without costly and time-consuming geogrid. Jim Manthei’s big block invention presented the perfect solution for Northern Michigan’s blossoming growth.

After several years of marketing Redi-Rock locally with strong success, the three brothers decided it was time to take Redi-Rock on the road. Ben Manthei stepped up as President of Redi-Rock and began leading a dedicated team in fields such as marketing, research and development, and sales all while focusing on exceptional customer service.

Well over one hundred dealers service North America today and Redi-Rock recently launched its European division. Redi-Rock University was launched in 2004 to provide training and support to the growing dealer base. Over the years, Redi-Rock has worked with major retail chains like Lowe’s, Walgreen’s, Wal-Mart, and McDonalds as well as high end residential developers such as Pulte Homes, in additional to several D.O.T. projects. Commitment to quality products, innovative designs, and customer service have made and will keep Redi-Rock at the forefront of the big block retaining wall industry.


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