Task: build a retaining wall with 4x6 timber
Assumptions:
Steps:
Select the area where to build the wall
Take required measurements
Make the retaining wall area ready
Make a note of the post locations
Set the posts
Fill the holes with gravel
Place the posts in each hole
Cast the concrete into the hole
Add gravel to the underside of the wall
Set up the boards
Back-fill the wall's slope side.