I built this 16X16 with one full lift of 2X6 with 25 sticks left over. I used 12 barrels and wish I had listened to the folks on here. This was my first time building a floater and I should have filled my barrels 1/3rd full of water. I would have had a better float height and more stable. I am to lazy to change it now.
I anchored the dock with a pulley system and it works great. Added in some lights and it is our new home out side.