Step 8: Placing the outside supports.

Find the location of the outside support boards and Dek-Block® piers. These will be centered between the existing rectangular core frame.

Extend a temporary 2"x6" support board from the existing rectangular core frame over the outside Dek-Block® piers. Using a level as a guide, measure from the bottom of the board to the bottom of the pocket of the Dek-Block® pier . From this measurement, subtract the thickness of the support board (5 1/2" ). Cut the 4"x4" post at this measurement. Repeat for the three remaining blocks.

Place the 4x4 posts in the outside Dek-Block® piers. Set the 2"x6" support boards on top and verify that the support board is level from block to block and the existing frame.