Fully engineered BIG block solutions.

The LondonBoulder engineered big block system is ideal for a wide range of residential, commercial and government applications. And labor-lite installation will reduce your client’s investment in time and money while looking great for generations to come. Do you have a challenging retaining application?  Call today 763-271-1956 to learn more.

LondonBoulder forms offer more benefits than any other big block form available. Our forms are fully engineered, designed for durability, and best of all, royalty-free. Explore our video page to learn more about block production. For detailed information on installation, visit our installation process page. If you’re still curious, browse through our literature page. Take a moment to review the specifications below or contact us today for questions and special pricing at 763-373-9605.


Saturated soil and a failed wall for a county road and a protected trout stream. LondonBoulder was the perfect solution for this application.  Minimal excavation and the strength to hold up to anything mother nature can throw at it for generations to come.

As every engineer knows, designing a wall involves more than just calculating the number of courses and amount of geogrid needed.  LondonBoulder’s wall systems provide you with unmatched flexibility without breaking the bank.

Download the BIG Block Engineering & Installation Guide. In this guide you’ll find a variety of documents including design details, estimating worksheets, geogrid reinforcement charts, connection capacity formulas and everything you need to build with LondonBoulder.  Contact us and we’ll send you our BIG Block Engineered Binder