Position the rectangular plate over the Phillips #5 wood screw holes (15mm) on the left width.

There are six Phillips #5 wooden screw holes in total (15mm). Four wooden screw holes (15mm) are on the left width of the panel and two other screw holes are on the width's side.

Repeat this step with the right width of the panel.

The rectangular plates that will later be fastened to the left and right width are connected to chains. The chains connect to another hinge piece that will later be connected to the main desk frame.