Fully engineered BIG block solutions.

The LondonBoulder 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.


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 fully engineered BIG Block 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