Step 4: Arrange the boards
1. Estimate your centre point
2. Attach a piece of string 2400mm in length to a centre post
3. Apply tension to the string and walk about the centre
(The end point should be the outer edge of the raised beds arrangement).
4. Begin putting in the corner posts about 1/3 into the ground
(Use a full length board as a guide for spacing posts).
NOTE: Eventually all of the boards should meet together forming a keyhole shape.
(The inside shape a 1/3 of the outer profile)