As you noted, steel sheet piles are indeed facing a brighter future.

The shapes of steel sheet piles have evolved—they are now wider and deeper, with a greater variety of thicknesses available.

Traditional flat-profile materials have found new applications in the construction of bulkheads and cofferdams, such as in open-cell structures. Driven by increasing demands for bulkhead depth and strength, composite wall systems have emerged—combining heavy wide-flange beams with interlocking sheet piles or tubular sections.

Another emerging application involves using sheet piles to enhance the load-bearing capacity of building foundations or bridge abutments.

My first prediction for the future is that steel sheet piles will always have a place in the market. Steel’s performance characteristics are measurable and time-tested. Engineers can confidently determine safety factors based on methods validated by both time and mathematics—prioritizing safety, liability management, and reliability. Of course, alloy compositions may evolve.

1. Interlock designs may change—becoming larger, smaller, or more watertight?

Historically, splicing steel sheet piles was often avoided; however, new splicing technologies capable of enhancing load-bearing capacity and section modulus could offer significant benefits.

In fact, a leading manufacturer of steel pipe and sheet piles has developed a cold-formed interlocking pipe structure. Sales of cold-formed pipe piles are expected to surge in the coming years as contractors and engineers recognize the advantages of this flatter interlocking profile.

Changes in metallurgical properties could eliminate the need for anti-corrosion treatments, or breakthroughs in the cost-effectiveness of coating systems could occur. Either scenario would help boost the adoption of steel sheet piles.

Indeed, corrosion control systems offer the greatest potential for improvement; utilizing stronger, thinner sheet piles will help expand the market.

New, improved sealants for sheet pile interlocks—compatible with both hot-rolled and cold-formed sections—are certain to broaden the market and range of applications for steel sheet piles.

2. Will the demand for steel sheet piles rise or fall? I believe it will continue to grow steadily. What do you think?

Will sales of cold-formed sheet piles eventually surpass those of hot-rolled sheet piles? The answer is yes. The cost-effectiveness and ready availability of cold-formed steel sheet piles, combined with their proven track record in engineering applications, will continue to drive sales growth, making them the preferred choice for many projects.

Will climate change and rising sea levels increase the demand for steel sheet piles? If scientific predictions hold true, global usage could double, triple, or grow even more.

Can new driving and handling technologies improve cost-efficiency and boost sheet pile usage? The answer is a resounding yes. The advent of side-grip vibratory pile drivers and extractors—along with equipment not yet even conceived—will further expand the use of sheet piles in applications such as trenching and the installation of sewer lines, water mains, and power lines.

Will the internet transform the way steel piles are sold and distributed? Absolutely. Amazon has already demonstrated its influence in this sector.

3. How, when, and why? If you fail to embrace these changes, your company will inevitably be left behind.

I believe that shifts in distribution channels will be more significant than any other factor. We are already using webinars for training; why not leverage webinars, web conferences, and video conferencing for sales calls as well? Travel costs are rising, and the time commitment is increasing. Many businesses are already adopting these methods, and those that lead the way will achieve greater success.

Finally, the steel sheet pile industry represents just a small segment of the broader foundation engineering sector. If you are part of it, take pride in your work! Keep striving! Our future is bright.