When it comes to foundation repair, choosing the right underpinning solution is crucial for the longevity and stability of your structure. Two of the most common methods are helical piers and push piers. Understanding the differences between these systems can help you make an informed decision for your specific project needs.
What Are Helical Piers?
Helical piers (also known as screw piles) are steel shafts with helical plates welded to them. They are installed by screwing them into the ground until they reach stable soil or bedrock.
Advantages of Helical Piers:
- Versatility: Works well in soft, wet, or expansive soils.
- Immediate Load-Bearing: Supports loads right after installation.
- Minimal Disturbance: Requires less excavation—ideal for tight spaces.
- Predictable Performance: Torque monitoring ensures capacity accuracy.
Considerations:
- Higher per-foot cost, though fewer piers may be needed.
- Less effective in shallow bedrock or dense obstruction zones.
What Are Push Piers?
Push piers (or resistance piers) are steel tubes driven into the ground using the weight of the structure. Once they reach stable soil, the weight of the building is transferred onto the piers.
Advantages of Push Piers:
- Cost-Effective per Foot: More budget-friendly in some cases.
- Deep Foundation Potential: Reaches deeper strata if needed.
- Ideal for Heavy Buildings: Great for large commercial projects.
Considerations:
- Soil Dependency: Requires substantial building weight.
- More Disruptive Installation: Often needs heavier excavation.
Helical Piers vs. Push Piers: A Comparison
| Feature | Helical Piers | Push Piers |
|---|---|---|
| Installation Method | Screwed into the ground | Driven into the ground |
| Soil Suitability | Versatile; works in various soil types | Best in stable soils with sufficient weight |
| Load Capacity | Determined by torque during installation | Relies on structure’s weight |
| Excavation Needed | Minimal | Moderate to extensive |
| Cost per Foot | Higher | Lower |
| Ideal For | Light to medium structures, limited access | Heavy structures, deep foundations |
How to Choose the Right System
When deciding between helical piers and push piers, consider:
- Soil Conditions
- Building Weight
- Project Access
- Budget Constraints
Each system has strengths, and the best choice depends on your unique foundation needs.
📞 Need Expert Help?
At FND Piers, we specialize in fast, dependable foundation solutions trusted by concrete contractors, engineers, and builders. We even manufacture and install Next Day Helicals to help clients finish projects faster, no matter the soil or weather.
Call us today at 817-402-7113 to speak with a foundation expert.
