How to Choose and Use Marine Foam Blocks

Finding the right marine foam blocks for your next waterfront project shouldn't feel like a physics exam, though getting the buoyancy right is obviously the main goal. Whether you're trying to fix a sagging dock, building a swimming platform from scratch, or just curious about what's keeping those massive marinas afloat, these foam inserts are the unsung heroes of the boating world. Most people don't think about them until their dock starts tilting to one side, but once you start looking into them, you'll realize there's actually a bit of a science to picking the right ones. ...

April 27, 2026 · 6 min · Rizwan Joyanne