Quality Still Comes First

2026 is Alumi-Span’s 70th year in business! 

One thing that makes us incredibly proud? You can still find 50- and 60-year-old Alumi-Span dock sections out in service today. They’ve weathered countless seasons and are often enjoyed by second and third generations of the same families.

Through all the years and all the changes, our values haven’t budged:

• Build things the right way
• Never cut corners
• Keep improving
• Offer honest, lasting value
• And always — always — make it in Michigan

Even today, the F-stringer style developed back in 1961 remains the most practical design for most inland docks. And Alumi-Span continues to lead the way in engineering and craftsmanship.

Looking Ahead

As we celebrate this anniversary, we’re filled with gratitude for the families who have trusted our docks, the marinas who have partnered with us, and the generations of Berlin and Hoover family members who poured their energy into making Alumi-Span what it is today.

Learn more in our latest article.

Learn How to Build a Boat Dock!

Ready to start building? 

If you need tips on how to build a boat dock, we’ve got you covered! Click here for our installation videos. If you have questions or you’re ready to place an order, don’t hesitate to reach out to us at 855-523-2444 or through our online contact form. We look forward to helping you build an amazing dock!

Where the Alumi-Span Story Begins

2026 marks Alumi-Span’s 70-year anniversary!

Our story starts in 1956 inside Metalloy Foundry, run by mechanical engineer and boating enthusiast Dick Berlin. Back then, docks were heavy, rusty, and made of steel or iron. Dick saw a better way. He created an all-aluminum dock system — lighter, cleaner, and stronger than anything on the market. In fact, some of those very first docks are still out on the water today.

The Breakthrough That Changed Everything

Just a few years later, in 1961, Dick introduced what would become a defining moment for the dock industry: the F-stringer aluminum dock section. By combining F-shaped side beams with interlocking aluminum boards, he created a dock that wasn’t just lighter — it was smarter, safer, and more affordable.

People took notice:

• Alcoa recognized it as one of the best new aluminum products of the year
• It appeared in over 20 industry publications
• And soon, over 200 marinas across the northern states were carrying it

Competitors tried to copy the idea, but the original Alumi-Span system set the bar.

Learn more in our latest article.

Learn How to Build a Boat Dock!

Ready to start building? 

If you need tips on how to build a boat dock, we’ve got you covered! Click here for our installation videos. If you have questions or you’re ready to place an order, don’t hesitate to reach out to us at 855-523-2444 or through our online contact form. We look forward to helping you build an amazing dock!