Dock Floats
Delivering the Right Dock Floats to Fit Any Marine Project
Durable Dock Float Drums for New & Existing Dock Systems
Dock Floats
Build the Perfect Floating Dock for Your Lakeside or Ocean Marina
With over 70 sizes of high-quality dock floats to choose from, we have the dock floatation solution for any marine application. Manufactured with a proprietary single-piece, rotationally-molded design, our dock floats eliminate seams that can separate and leak. Built to resist damage by animals, ice, bumps by watercraft, and deterioration from petroleum products.
Build the Perfect Floating Dock for Your Lakeside Home or Waterway Marina
With over 70 sizes of high-quality dock floats to choose from, we have the perfect dock floatation solution for any marine application. Manufactured with a proprietary single-piece, rotationally-molded design, our dock floats eliminate seams that can separate and leak. Each dock float drum resists damage from aquatic animals, freezing rain, watercraft bumps, and deterioration from petroleum products.
Commercial Buyers
Volume Pricing Available
Choose your products of interest, then request an estimate for volume pricing.
Commercial Buyers

Volume Pricing Available
Dock Boxes Unlimited offers volume pricing options for commercial buyers.
Choose your products of interest, then request an estimate for volume pricing.
Build the Perfect Floating Dock for Your Lakeside or Ocean Marina
With over 70 sizes of high-quality dock floats to choose from, we have the dock floatation solution for any marine application. Manufactured with a proprietary single-piece, rotationally-molded design, our dock floats eliminate seams that can separate and leak. Built to resist damage by animals, ice, bumps by watercraft, and deterioration from petroleum products.
Commercial Buyers

Volume Pricing Available
Dock Boxes Unlimited offers volume pricing options for commercial buyers.
Choose your products of interest, then request an estimate for volume pricing.
FIVE CONVENIENT LOCATIONS TO SERVE YOU

MOLDED MOUNTING SLOTS
5/8" Wide x 2" Long and completely water tight.
THREADED VENT PLUG
Prevents heat build up.
STRUCTURED RIBS ON TOP, BOTTOM & SIDES
For extra strength.
-150 WALL NOMINAL THICKNESS
Average .187".
ROTO MOLDED ENCASEMENT
For one-piece construction meets falling dart/puncture test.
EPS FOAM FILLED
Meets “Hunt” test.
HEAVY MOUNTING FLANGES
2" Thick for strength.
EXPLORE THE FEATURES OF OUR DOCK FLOATS

Discover the Best Dock Flotation Product for Your Marina
With a flat top and built-in mounting slots, our marine floats easily attach to any dock framework—wood, steel, or aluminum. The one-piece rotationally molded design removes seams, ensuring durability and preventing leaks.
Need help finding the right marina dock floats for your project? Determine your float size and quantity with our Dock Float Calculation Guide.
THERE IS SIMPLY NO COMPARISON
You can find similar looking dock box designs on the market, but you won’t find Dock Boxes Unlimited quality. We encourage our customers to do a side by side comparison vs any other dock box. It’s easy to see why our dock boxes have been the choice for marinas and dock owners who know the true value of top quality dock boxes.
IT ALL STARTS WITH GREAT CUSTOMER SERVICE
Providing the world’s most reliable dock boxes is our passion. Delivering the most responsive customer service is our mission. With experts in power and electrical design, dock storage and more at your service, we’re dedicated to delivering a full cycle customer experience—before, during and after your purchase. Proactive and caring, we make sure your experience is optimal. Today, tomorrow, and 15 years down the road.
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Build a Floating Dock You Can Trust
As the ultimate source of marina supplies, we know what boat owners are looking for when it comes to building a dock. For thirty years, Dock Boxes Unlimited has provided dock floats of the highest quality. Whether you’re building a new dock or expanding an existing structure, you’ll find reliable dock flotation solutions designed for long-term performance.
Unmatched Quality. Proven Durability.
Dock Equipment for Every Boat Dock
Whether it’s finding the perfect dock supply product or equipping an entire marina facility, Dock Boxes Unlimited has the solutions you need.
Dock Floats FAQs
Are your dock floats suitable for saltwater and ocean marinas?
Yes. The shell is molded from linear virgin polyethylene reinforced with UV inhibitors and carbon black pigment, so it resists saltwater corrosion, sun, oils, and pollutants. The seamless one-piece body has no joints to split or seams to leak, which is exactly what open-water and coastal marina conditions demand. The same dock float performs equally well on a freshwater lake.
How much weight can a dock float support?
Each marine float carries its own buoyancy rating in pounds, the weight it holds before sitting below the waterline, and those ratings span a wide range across our lineup, from roughly 290 lbs on the smallest drums to over 5,800 lbs on the largest. You don’t rely on a single float, though: flotation is distributed across many drums beneath the frame, so the dock’s total capacity is the sum of every float supporting it.
What materials are Dock Boxes Unlimited dock floats made from?
The drum consists of a robust linear virgin polyethylene outer body that is UV protected by being dyed with UV inhibitors and carbon black pigment. The shell is made via rotational molding and comes as a single-piece construction, and is of food-grade quality, non-contaminating to the water, and 100% recyclable at the end of its long service life.
Can dock floats be added to an existing dock framework?
Certainly, molded-in mounting channels and thick 2″-flanges mount directly to wood, steel, or aluminum dock structures. This means that our docks can be equally effective on new and existing structures. In cases where existing boat docks have sunk due to loss of flotation, additional or replacement flotation units will raise the dock.
Where can I buy dock floats for my marina or lake dock?
Right here. Dock Boxes Unlimited has the best dock floats for sale in over 70 sizes online, shipping from four U.S. warehouses for the largest inventory and fastest lead times in the industry. For a marina build or any bulk order, add the sizes you need to an estimate request, and our team will return volume pricing built around your project.














































