How O-Pile® Improves Bending Capacity

O-Pile® Featured in Pile Buck

We are pleased to share that Pile Buck has published a new article highlighting the O-Pile® system and its role in improving the bending moment capacity of deep foundation structures — without simply adding weight.

Article in Brief

O-Pile® combines steel pipes with welded PilePro® connectors to form continuous, watertight retaining walls — temporary or permanent. Instead of relying on heavier sections, O-Pile® reaches a higher bending capacity through efficient pipe geometry, premium steel grades, and a stronger interlock.

Key Highlights

• High-strength steels up to X110 — yield strength up to 110,000 psi vs. ~50,000 psi for conventional sheet piles.
• Ball-and-socket connector tested at 27 kips/in — more than 6× stronger than a typical Larssen hot-rolled interlock.
• Variable wall thickness — steel placed where durability matters most, reduced where it is not.
• Better strength-to-weight ratio than traditional combined wall systems (OZ / IZ).
• Global pipe availability — supports flexible, local sourcing.

Where It Fits

Marine construction, cofferdams, retaining walls, barrier systems, and excavation support — anywhere bending resistance and watertightness are critical.

Read the full article on Pile Buck: How O-Pile® Improves Bending Capacity →