The shelf in the first picture is made of red oak plywood. You can choose the wood type, color and design as you like for your project. In case if you need more help understanding this project, you can refer the source link below. It discusses various items used, steps and tips and personal experience of the author who personally built a Zigzag shelf.
The cost of being disorganized is time. It takes me ten times as long to work on a project when I am scouring the room looking for a drill bit, the right screws, or trying to remember where I last used one of my 10 tape measures. Workshop organization is an ongoing project. As you acquire more tools, you have to rearrange your shop to work in storage for those new items. So mobile and modular storage, wherever possible will save you time down the road. Here are some amazing Workshop Organization Ideas that I hope will inspire you!
Drill four 5/8-in.-dia. 1/2-in.-deep holes on the large disc?inside the traced circle?then use 5/8-in. dowel centers to transfer the hole locations to the underside of the small disc. Drill four 1/2-in.-deep holes on the underside of the small disc and a 1/2-in.-deep hole in the center of the top for the dowel handle. Glue in the dowels to join the discs, and glue in the handle. We drilled a wood ball for a handle knob, but a screw-on ceramic knob also provides a comfortable, attractive grip.
As your interest in woodworking grows, you’ll want to subscribe to a woodworking magazine. This will help feed your new found obsession with articles on tools, techniques, and woodworking plans. As a print magazine subscriber you’ll also gain access to their database of plans on their websites. Popular magazines include, Woodworkers Journal, Fine Woodworking, and Popular Woodworking.