1x4 - An/na:

An/Na (Annular Nails) have rings along the shank that act like threads on a screw, providing a permanent hold in softwood like pine or cedar, which are common for 1x4 projects.

apart for drainage if used outdoors. The "Annular" nails prevent the boards from warping or pulling away from the frame over time. 2. Vertical Bookcase or Display Ladder An/Na: 1x4

) using an (likely referring to Annular Ring Shank nails), you can create several functional DIY projects. An/Na (Annular Nails) have rings along the shank

You can use "Annular" nails to secure the shelves to the rails. For added versatility, you can incorporate hinges or mending braces to create a foldable "storyboard" or ladder design. 3. Lightweight "Flat" or Partition Wall An/Na: 1x4