Step 1: Cut wood. Cut wood down to size according to the cut list with a miter saw.
Step 2: Drill pocket holes. Drill pocket holes on the end of each slat (2 on each end). On one top slat and one bottom slat drill 5 pocket holes horizontally to screw into the top and bottom frame.
Step 3: Assemble outdoor plant wall. Assemble outdoor plant wall. Start by attaching all slats to one of the side pieces of the frame spacing them evenly with 1/4" space in between each slat. Next, add the top and bottom of the frame and lastly add the other side piece of the frame. On the mitered corners of the frame, add two screws through each outside corner (4 total screws in each corner).