Single Drill Concrete Pier
For homes and light commercial buildings, single drill concrete piers are concrete columns that are formed by drilling holes into the ground between 9- 12 feet deep and pouring liquid concrete 3500 psi into holes and are reinforced with steel rebars that are tied together and lowered into the hole. Creating a perfect vertical shaft that is between 10-12 inches in diameter.
PROS AND CONS
Sonotube concrete forms stand strong as the most economical way to create round columns for buildings, entryways, structural columns, light posts and other commercial and residential structures. We use it on our single drill concrete pier to add extra support to the foundation.
Double Drill Concrete Piers
For two story residential homes or heavier commercial buildings, double drill concrete piers are 8” in diameter formed by drilling two shafts at a predetermined specified angle, this system works well at most areas because the reversed v angle creates maximum upward support.