Many factors go into a retaining wall project to ensure it will last. At Rockborn we design each project to specific needs and ensure each step of the way is done to exacting specifications using the best materials available. Or more simply, we build our product to last. 

Below are the simplified steps to a proper concrete installation and the work that goes into ensuring your project is done right.

1. Excavation: Excavation depth depends on a couple of factors; what kind of forces the wall will experience and the specifics of your soil (sandy, clay, shale, etc.) will determine how much base material is sufficient for your project and thus the necessary excavation depth. In Canada, we have a harsher climate and projects require deeper excavation and a thicker base than most other places.

2. Geotextile: For some projects certain geotextile materials are necessary due to unforeseen subsoil conditions, excessive water saturation, or other conditional factors. Geotextile materials are often used to decouple the base material from the sub-soil or to reinforce the base material in layers to make it more able to withstand concentrated pressures. Our team can tell you more regarding your specific project's needs.

3. Gravel: The base on which the wall is laid is one of the most important aspects of your installation. The type of materials used as well as the number of distinct material layers depends on the purpose and specific design of your project. We always use large, angular stone aggregates which lock tightly together, never cheaper round gravels, small limestone screenings, or dirt. Ask us more about this, we're always happy to discuss how our materials differ from the competition.

4. Compaction: Base material needs to be laid and compacted in 'lifts' to ensure strength and proper consolidation; Thin layers of material are put down, flattened, tamped, and repeated until achieving final required thickness. Some other companies often rush this step or cut corners because it requires a large amount of time, but we know through experience that it is absolutely necessary to ensure a lasting product.

5. Building: The specifics depend on what type of wall and the material chosen, but a few aspects remain the same: Accuracy of placement and heights, following engineered setbacks and/or adding reinforcement based on heights and lateral forces experienced. If you're more curious about the processes related to each installation, please don't hesitate to ask us!

6. Backfill: Another extremely important step is the material and systems placed behind the new wall, and while each installation differs, we always backfill our walls with clear, angular stone and design drainage systems with socked weeping tile to ensure proper dispersion of hydrostatic pressure, minimization of freeze-thaw effects, and ensure longevity of the wall for decades to come.
   
   

There are many designs and material choices to choose from when considering a retaining wall. Listed below are a few of the most common options: