Why Use Drilled Pier Foundations?
- Ideal for sloped or uneven sites.
- Reduces excavation and concrete use.
- Minimizes impact on the landscape.
- Provides excellent strength and stability.
Typical Installation Steps
- Layout and mark pier locations.
- Drill holes to the required depth and diameter.
- Place the rebar cage.
- Pour concrete and finish the pier top.
- Install beams, joists, and the floor system.
Important Notes
- Engineering is recommended to determine pier size, depth, and spacing based on soil conditions and loads.
- Provide proper drainage and site grading away from the foundation.
- Follow all local building codes and permitting requirements.
Common Pier Diameters
Typical drilled pier diameters include 12", 14", 16", 18" or larger, depending on structural loads, soil conditions, frost depth, and local engineering requirements.
Always verify final pier size, depth, reinforcement, and spacing with your engineer and local building department.
Build on stable ground.
A well-designed drilled pier foundation can provide a strong, level base for new homes on sloped, uneven, or expansive-soil sites.