How Many Barrels Does it Take to Float a Dock?

Floating docks are a popular addition to ponds, lakes, and other bodies of water, providing a stable and versatile platform for various recreational activities. Constructing a floating dock using 55-gallon drums is a cost-effective and relatively simple DIY project. This article explores the factors influencing the number of barrels required to float a dock, the advantages of using 55-gallon drums, the steps involved in building a floating dock with barrels, and methods to prevent leaks in floating barrels.

Number of Barrels Required

The number of barrels needed to float a dock depends on the size and weight of the dock. A larger and heavier dock will require more barrels for adequate support. According to one source, four 55-gallon barrels can support the weight of a floating pier. However, it is essential to carefully calculate the total weight of the dock, including the weight of the decking, frame, and any additional structures or equipment that will be placed on the dock.

Advantages of Using 55-Gallon Drums

55-gallon plastic drums offer several advantages over traditional dock floats. They are relatively inexpensive, making them a cost-effective option for building a floating dock. Additionally, these drums have thick walls, providing structural integrity and durability. They can withstand harsh outdoor conditions and are less prone to cracking when iced over, making them suitable for use in areas with freezing temperatures. Furthermore, 55-gallon drums are easy to transport due to their ability to be rolled over the ground.

Steps to Build a Floating Dock with 55-Gallon Drums

Constructing a floating dock with 55-gallon drums involves several steps:

1. Outer Frame

   Build a square frame using 2×8 treated boards for the outer frame. Secure the corners with screws. Add 4×4 corner posts for extra stability.

2. Inner Frame

   Create an inner frame using 2×4 treated boards to support the barrels and provide a base for the decking. Attach crossbeams to the frame to form cradles for the barrels.

3. Barrel Preparation

   Tighten the plugs on the barrels and seal them with silicone caulking to prevent leaks. Some individuals add ballast water to the drums for stability before sealing them.

4. Attaching the Barrels

   Attach eye bolts to the frame to hold ropes that will secure the barrels. Place the barrels in the cradles and tie them down using polypropylene rope.

5. Flipping the Dock

   Flip the dock upright with the assistance of others. Position the dock close to the body of water before flipping it.

6. Decking

   Add decking boards to the dock using 1×6 treated boards. Leave a small gap between the boards to allow for expansion and contraction.

7. Securing the Dock

   Secure the dock in place by adding an eye hook to the outside of the dock and tying it to a rebar driven into the ground using polypropylene rope.

Preventing Leaks in Floating Barrels

To prevent leaks in floating barrels, several measures can be taken:

1. Polyurethane Drums

   Use polyurethane drums, as they are more durable and less prone to leaks.

2. Plastic Gasket

   Ensure a plastic gasket is in place between the hole and the plug to create a watertight seal.

3. Silicone Sealant

   Apply silicone sealant around the plug’s threads before screwing the gasket in if the gasket is questionable or a new one is not immediately available.

Conclusion

The number of barrels required to float a dock varies based on the dock’s size and weight. 55-gallon plastic drums are a cost-effective and durable option for building floating docks, offering advantages such as affordability, structural integrity, and resistance to freezing temperatures. Constructing a floating dock with barrels involves building an outer frame, creating an inner frame for support, preparing the barrels, attaching the barrels to the frame, flipping the dock over, adding decking, and securing the dock. To prevent leaks in floating barrels, using polyurethane drums, ensuring a plastic gasket is in place, and applying silicone sealant around the plug’s threads are recommended.

References

• How many 55 gallon drums for this size dock? – Pond Boss Forum
• How to Build a Floating Dock with 55-Gallon Drums by ASC, Inc.
• How to Prevent Floating Barrels from Leaking – EZ Dock Texas

FAQs

How many 55-gallon drums do I need to float a dock?

The number of barrels required depends on the size and weight of the dock. A larger and heavier dock will need more barrels for adequate support. Generally, four 55-gallon barrels can support the weight of a floating pier.

What are the advantages of using 55-gallon drums for a floating dock?

55-gallon plastic drums offer several advantages:

• Cost-effective: They are relatively inexpensive, making them a budget-friendly option.
• Durable: They have thick walls, providing structural integrity and durability to withstand harsh outdoor conditions.
• Resistant to freezing: They are less prone to cracking when iced over, making them suitable for areas with freezing temperatures.
• Easy to transport: They can be easily rolled over the ground, facilitating transportation.

What steps are involved in building a floating dock with 55-gallon drums?

Building a floating dock with 55-gallon drums involves several steps:

1. Construct an outer frame using treated boards.
2. Create an inner frame using treated boards to support the barrels and provide a base for the decking.
3. Prepare the barrels by tightening the plugs and sealing them with silicone caulking to prevent leaks.
4. Attach the barrels to the frame using eye bolts and polypropylene rope.
5. Flip the dock upright with assistance.
6. Add decking boards to the dock, leaving a small gap between them for expansion and contraction.
7. Secure the dock in place using an eye hook and rebar driven into the ground.

How can I prevent leaks in floating barrels?

To prevent leaks in floating barrels:

• Use polyurethane drums, as they are more durable and less prone to leaks.
• Ensure a plastic gasket is in place between the hole and the plug to create a watertight seal.
• Apply silicone sealant around the plug’s threads before screwing the gasket in if the gasket is questionable or a new one is not immediately available.

What is the recommended spacing between decking boards on a floating dock?

It is recommended to leave a small gap, approximately ⅛ inch, between the decking boards to allow for expansion and contraction due to changes in temperature and moisture.

Can I use 30-gallon drums instead of 55-gallon drums for my floating dock?

While 30-gallon drums can be used, they will provide less buoyancy compared to 55-gallon drums. You may need to use more 30-gallon drums to achieve the same level of support.

How do I maintain my floating dock made from 55-gallon drums?

Regular maintenance is essential to keep your floating dock in good condition:

• Inspect the barrels regularly for any signs of damage or leaks.
• Check the decking boards for rotting or splintering and replace them as needed.
• Clean the dock periodically to remove dirt, debris, and algae.
• Secure the dock properly to prevent it from drifting away.

Can I use floating barrels to create a floating dock for swimming?

Yes, floating barrels can be used to create a stable and safe platform for swimming. However, ensure that the dock is properly constructed and secured to prevent accidents.