Piling sizes for boatlifts and marine dock construction can vary depending on several factors such as the water depth, the size of the dock or boatlift, the weight capacity required, and the soil composition of the seabed.
Generally, the most common piling sizes for docks and boatlifts are between 8 inches to 12 inches in diameter, with lengths ranging from 8 feet to 40 feet. The most commonly used material for pilings is treated wood, although steel and concrete are also used in some cases.
The diameter and length of the piling needed for a particular project will depend on the weight of the structure to be supported and the soil conditions at the site.
For example,a larger diameter piling will be needed to support a heavier structure like a commercial and custom dock. In comparison, a longer piling may be necessary to reach a stable layer of soil beneath the seabed.
Ultimately, the size of the piling required for a dock or boat lift installation will depend on the specific requirements of the project and should be determined by a qualified engineer or