Round Dock Washers

Dock washers vs fender washers

Both have a large outside diameter, but they are built for different jobs. A dock washer is much thicker and heavier, made to carry structural loads and resist cupping under high torque in dock, pier, and heavy timber construction. A fender washer uses thinner stock focused on coverage for sheet metal and light-duty repair. The round dock washer's broad, stiff bearing surface spreads clamping force over a wide area, prevents pull-through on oversized or weathered holes, and stabilizes connections exposed to movement and impact. Because these washers live outdoors near water, they are hot dipped galvanized for lasting corrosion resistance, and they pair with galvanized timber bolts and lag hardware.

Why choose round dock washers

• Oversized and thick: broad, stiff bearing for structural loads.
• Prevents pull-through: stops hardware embedding in timber.
• Outdoor built: hot dipped galvanized for marine exposure.
• Handles rough holes: bridges oversized and weathered holes.

Common applications for round dock washers

• Dock and pier construction
• Marine and waterfront timber joints
• Heavy timber and structural wood
• Oversized or weathered bolt holes

For a square profile, see square dock washers, and browse every option on the main dock washers category.

Round Dock Washers FAQ

What is the difference between a dock washer and a fender washer?

Both have a large OD, but dock washers are much thicker and built for structural loads and outdoor exposure, while fender washers use thinner stock for sheet metal and light-duty repairs.

Why are dock washers galvanized?

They are used outdoors near water, so the hot dipped galvanized coating gives lasting corrosion resistance in marine and waterfront conditions.

What are round dock washers used for?

Spreading load in dock, pier, and heavy timber construction, preventing bolt heads and nuts from pulling into wood, and bridging oversized or weathered holes.