Identify Lumber Samples

What happens here

The video begins with the presenter identifying two distinct pieces of 2x4 lumber that will be used for the demonstration. One piece, explicitly labeled 'Pith' with a permanent marker, clearly shows the central growth rings (the pith) on its end grain. The other piece, labeled 'Plain,' exhibits a more uniform grain pattern without the pith. The presenter explains that lumber containing the pith is generally weaker and should be avoided for structural applications.

Goal: Understand the visual and structural difference between lumber with and without pith.