Pneumatic-Assist Post Driver For Building Docks!  This post driver is designed to drive pressure treated 4x4s into river or lake bottoms for building docks.  It uses a pneumatic cylinder and compressed air to do all of the heavy lifting which results in very little effort required by the operator.

16' dock pole installation on Lake St. Clair.  A simple do-it-yourself- add on was temporarily installed to assist with the "initial" height of the post.

A single dock pole installed on Lake St. Clair using the 4 x 4 Dock Post Unit took under 30 minutes!  A sharp "V" shape was cut on the end of the 4x4 digging into the sand quickly.

Two sizes of units are offered weighing under 38#.  Check our website at 4x4postdriver.com for more information.