How do I build a simple wooden shelf for storage?

While the provided sources do not offer specific instructions for building a simple wooden shelf, they do provide instructions for building floating shelves and a bookshelf.

To build floating shelves, you will need to create an internal frame. You'll need wood, such as 1x lumber for the internal frame, and thin plywood or MDF for the top and bottom. Essential tools include a circular saw or miter saw, a power drill with various bits, wood glue, clamps, a tape measure, a pencil, sandpaper or a power sander, and a carpenter's square. First, cut the frame pieces. You will need two long pieces that match the desired length of your shelf for the front and back rails of the frame. Then, cut shorter pieces to act as internal rungs or cleats. Space these cleats every 12-16 inches along the length of the frame. Then assemble the frame and attach the top and bottom panels. Secure the bracket to the wall by driving the lag screws firmly into the studs. Slide the finished shelf box over the support rods.

To build a simple bookshelf, you'll need wood, wood screws, wood glue, sandpaper, and your chosen finish (paint or stain). Essential tools include tools that help you measure accurately, cut safely, and assemble securely. Begin by making your cuts. Then, sand each piece of wood. Assemble the main frame by attaching the top to the sides and then attaching the bottom shelf. Install the shelves by measuring and marking shelf placement.