When choosing a boat dock material, you want something that will stand up to weight, wakes, rust, and time. Aluminum boat docks have become extremely popular in the last few decades for several reasons, but steel docks have their merits as well.
At Knoxville Barge, we build custom boat docks from a variety of materials depending on the application and customer preference. Here, we’ll compare aluminum docks vs. steel boat docks for your consideration.
Pros and Cons of Aluminum Boat Docks
Advantages of aluminum boat docks:
- Lightweight: Aluminum is easier to install and places less of a load on your foundation and shoreline.
- Very strong: Comparisons depend on the exact material being used, but aluminum can be just as strong as steel, if not stronger.
- Environmentally friendly: Aluminum is easily sourced and recyclable.
- Corrosion-resistant: Aluminum resists rust and does not lose strength as it oxidizes.
- Low maintenance: You can get away with as little maintenance as you please.
- Cool to the touch: Barefoot swimmers running around? That’s no problem with aluminum docks.
Aluminum docks generally cost a bit more than steel, and that’s the main disadvantage. However, the low maintenance and long lifespan helps even out the difference.
Pros and Cons of Steel Boat Docks
Advantages of steel boat docks:
- Exceptional strength: There’s a reason Superman is called the man of steel. For boat docks, galvanized steel offers superior strength, making it ideal for commercial piers or any heavily used docks.
- Weather-resistant: The galvanized surface of steel dock frames and pilings has been chemically applied to the steel, not just coated on. For years or even decades after installation, any weathering occurs to the galvanized surface only.
- Lower price: Commodity prices vary, but steel boat docks generally cost less than equivalent aluminum docks.
- Less malleable: Whereas aluminum’s malleability helps it maintain strength in spite of stress, the fact that steel holds its shape better can be considered a cosmetic benefit.
Drawbacks of steel boat docks include their heavier weight, a slightly shorter lifespan, and more maintenance required. But again, the strength and stability make steel docks the absolute best choice for many applications.
Get Advice from Knoxville’s Custom Dock Builders
If you’re considering boat dock materials and designs for use on Tellico Lake, Fort Loudon Lake, or other Tennessee River waterfront areas, Knoxville Barge would be happy to visit your site for a no-obligation consultation.
We provide free estimates and friendly customer service from a team of marine experts who have been building custom docks in Knoxville for nearly 40 years. Contact us online to get started.