Securing and Assembling Medium Frames

What happens here

After dry-fitting the frame components, the presenter uses a hammer to secure the pieces together with small nails provided in the kit. He then demonstrates how the plastic foundation slides into the grooves of the assembled medium frame and secures it by tapping the top bar with a hammer. He repeats the process for several frames, noting the difference in size between medium and deep frames.

Goal: Securely assemble medium frames with foundations.