The photo above shows the raised bed after one of the longer sides has been installed. We used more of the 1x3.5 boards here (same dimensions as the floor boards). Again, the boards are spaced slightly apart, to promote aeration. Pre-drill first to avoid splitting the boards, then screw them in. Repeat on the other side.
Note in the photo above that we've begun to install finials atop the framing units. Finials are optional, but they do dress up raised beds.
Note also in the photo that we've begun to install boards to complete the shelf, on the lower part of the raised bed. The shelf boards need be only 17.5" long, so this is a good chance to use up any left over 1x6 or 1x3.5 lumber, from the cutting you've done in prior steps.
In Step #8 we return one last time to the frame. Our raised bed is essentially built now, but we'll solidify it further before finishing up....
