How to Build a Floating Deck | how-tos | DIY
Set and Level Four Corners of Blocking. Set the four corners for the deck. Digging about 6 inches into the ground create holes for the blocks so you can adjust (raise or lower) to make them even. The blocks should be spaced to make a 7' x 19' rectangle leaving about 6 inches from each block for deck boards to add another 8' x 20' rectangle. Using a string level or laser level make sure each block is level.