Which One is Right for Your Project?
When dealing with deep excavation or construction close to existing structures, shoring is essential for maintaining safety and structural integrity. But not all shoring systems are the same—and choosing the right one can make the difference between a smooth, efficient project and one filled with delays, risks, and added costs.
In this guide, we’ll break down what shoring is, the different types of shoring systems, and how to select the best option for your next project in the Greater Toronto Area (GTA).
🏗️ What Is Shoring?
Shoring is the process of supporting a structure or trench to prevent collapse during excavation or construction. It provides temporary reinforcement to hold back soil or existing buildings while underground work is being performed.
Common scenarios where shoring is used:
- Basement excavation
- Underpinning old foundations
- Construction near neighboring buildings
- Deep utility installation
🔍 Why Shoring Matters in Toronto Projects
Toronto’s dense urban layout often requires digging right beside existing homes or commercial buildings. Without proper shoring, soil can shift, walls may crack, or worse, a structural collapse can occur.
Additionally, city bylaws and building codes mandate the use of engineered shoring systems for deep or close-proximity excavation. Failing to comply can lead to work stoppages or legal issues.
Types of Shoring Systems
1. Soldier Pile and Lagging
Best for: Deep excavations near property lines This system involves driving vertical steel piles (soldier piles) into the ground and inserting horizontal wood or concrete panels (lagging) between them as excavation proceeds. Pros: • Fast installation • Ideal for tight spaces • Cost-effective for short-term support Cons: • Not suitable for very loose soils May require tiebacks for stability
2. Hydraulic Shoring
Best for: Trench support in utility or drainage projects This method uses hydraulic pistons that press against the trench walls to keep them from caving in. Lightweight aluminum frames make installation quick and easy. Pros: • Fast setup • Reusable equipment • Adjustable pressure control Cons: • Limited to shallower excavations • Not suitable for larger or open-area jobs
3. Sheet Piling
Best for: Long-term or water-adjacent projects Sheet piling involves driving steel sheets into the ground to form a continuous wall. These sheets are interlocked and can be left in place or removed later. Pros: • Excellent water and soil retention • Strong lateral support • Durable for long-term projects Cons: • Higher cost • Requires heavy equipment and skilled operators
4. Engineered Timber Shoring
Best for: Temporary residential excavation This is a more traditional method using timber beams and planks to support walls. Though less common today, it’s still used in small-scale, shallow excavations. Pros: • Budget-friendly • Good for light-duty applications Cons: • Limited durability • Labour-intensive
5. Tieback Anchoring Systems
Best for: Deep excavation where internal bracing is not possible Tiebacks are long steel rods or cables drilled into the soil behind the shoring wall to provide additional lateral support. Pros: • Allows for open excavation area • Reinforces other shoring methods Cons: • Requires geotechnical expertise Permitting can be complex
🔎 How to Choose the Right Shoring System
- Project Depth & Size Deeper excavations require more robust support systems like sheet piling or soldier piles with tiebacks
- Soil Type Clay, sand, or loose fill each react differently during excavation. A soil report from a geotechnical engineer is crucial.
- Nearby Structures Projects near existing foundations or property lines must use low-vibration systems to avoid damage—soldier piling is often a good choice.
- Duration Long-term projects may justify the cost of sheet piling, while short-term digs may benefit from hydraulic or timber shoring.
- Budget Hydraulic and timber systems are budget-friendly but limited. A cost-benefit analysis with your contractor helps balance safety and spending.
Why Work with Hippo Excavation?
At Hippo Excavation, we provide professional shoring services across Toronto and the GTA, tailored to your project’s specific needs. We collaborate with engineers, manage permits, and use the right system—whether it’s for a basement, addition, or full excavation.
We prioritize:
- Safety
- Speed
- Structural integrity
Compliance with local building codes
📞 Let’s Shore It Up—Safely
Don’t leave your project’s foundation to chance. Whether you’re digging for a new basement or replacing an old one, choosing the right shoring system is critical.
👉 Call Hippo Excavation at 416-876-8970 or visit hippoexcavation.ca for a free consultation or estimate.