Do I need a permit to build a dock?

Yes, almost all jurisdictions require permits for dock construction. You may need permits from local zoning, state environmental agencies, and the US Army Corps of Engineers.

How long does a dock last?

A well-built dock with marine-grade pressure-treated pilings lasts 20-30 years. The decking may need replacement sooner, especially in saltwater environments.

Should I build a fixed or floating dock?

Fixed pile docks are best for areas with minimal water level change (under 3 feet). Floating docks are better for locations with significant water level fluctuations.

How to Build a Boat Dock: Complete DIY Guide | Lumberama

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3-5 weekends (40-60 hours)

$3,000 - $15,000

How to Build a Boat Dock (2026)

Prepared by Lumberama's Building Projects Team

|Last updated May 26, 2026|Sources & methodology

A well-built boat dock extends your waterfront property's functionality, providing a stable platform for boarding boats, fishing, swimming, and enjoying the water. Dock construction involves unique challenges including water-level fluctuations, wave action, marine organisms, and permitting requirements. This guide covers building a fixed pile dock, the most common residential dock type.

Key Takeaways

A well-built boat dock extends your waterfront property's functionality, providing a stable platform for boarding boats, fishing, swimming, and enjoying the water.
Dock construction involves unique challenges including water-level fluctuations, wave action, marine organisms, and permitting requirements.
This guide covers building a fixed pile dock, the most common residential dock type.
Use marine-grade pressure-treated lumber rated UC5A or UC5B for all underwater and splash-zone components.
Stainless steel or hot-dipped galvanized hardware is essential to resist saltwater corrosion.

Tools Needed

Circular saw, drill/driver, impact driver, level, tape measure, post-driving equipment (water jet or pile driver), socket wrench set, marine-grade hardware, waders, safety glasses, life jacket

Materials List

Pressure-treated marine-grade pilings (6x6 or 8-inch round), 2x8 or 2x10 PT stringers, 2x6 or 5/4x6 PT or composite decking, galvanized or stainless steel through-bolts, marine-grade joist hangers, dock cleats, dock bumpers, galvanized lag bolts

Recommended Species

Pressure-Treated Southern Yellow Pine (marine-grade UC5A or UC5B), Composite Decking, Ipe (for decking)

Recommended Sizes

6x6 or 8-inch round pilings, 2x10 stringers, 2x6 or 5/4x6 decking, galvanized through-bolts

Pro Tips

Use marine-grade pressure-treated lumber rated UC5A or UC5B for all underwater and splash-zone components. Stainless steel or hot-dipped galvanized hardware is essential to resist saltwater corrosion. Drive pilings at least 4 feet into the lakebed for stability. Check water depth at the lowest seasonal level to set your deck height.