Helical piers are giant earth screws and have tested engineering results to back up their load bearing capacities. These are hydraulically screwed into the ground and their strength is correlated with the resistance pressure from the installation to measure the ability of the soil to hold.

One of their most common uses is for additional foundation capacity without the weight of additional concrete. These helical piers are able to be spaced out in new construction and provide uplift resistance as well as deep bearing support for a new foundations structure.

These work well to mitigate settlement for lightweight structures or to add additional load bearing capacities and uplift (wind) resistance to structures foundations. Helical piers have numerous options and comply with ICC (International Code Council) requirements. Typically an engineer is required to review the installation and ensure that the helical piers were installed to the correct load ratings.