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. 

Begin by cutting off a 10-in. length of the board and setting it aside. Rip the remaining 38-in. board to 6 in. wide and cut five evenly spaced saw kerfs 5/8 in. deep along one face. Crosscut the slotted board into four 9-in. pieces and glue them into a block, being careful not to slop glue into the saw kerfs (you can clean them out with a knife before the glue dries). Saw a 15-degree angle on one end and screw the plywood piece under the angled end of the block.
Sanding curves is tricky. Sometimes you need a sanding pad that’s both firm and flexible. A small notepad works great. Just wrap sandpaper around the pad and bend the pad to whatever arc you need. Slip the one end of the sandpaper between the pages to help hold it in place on the pad. Give this a try the next time you’re working on a project that has curves and tough to reach spots.
You can also make one for elders and put it in your garden or terrace or anywhere in the house. Elders can use it to relax and kids can use it to play or sleep. Although this is a really beautiful piece of woodwork, it is not that easy to make. Only someone with good woodworking skill can think of making this swing set. Also, I couldn’t find a good tutorial that illustrates the process of building a wooden boat-shaped swing set. Most Probably, I will write one when I build mine.But if you really want this swing set like right now, I would suggest you hire a good woodworker, who can build something similar. Or just search the internet and maybe you get lucky enough to find a tutorial for this. Good luck either way.
A board is considered “quarter-sawn” when the growth rings run, more or less, perpendicular to the face of the board. Quarter-sawn boards generally have straight grain and are less prone to shrinkage, compared to other boards. These factors don’t come into play with the 2x4s you use to frame a closet—but it does with the shelves and cabinetry you put into that closet; you want those boards to remain straight, flat and stable.
A while back, I reached for my two containers of epoxy and noticed that the resin in one container had crystallized exactly like honey that’s been in the cupboard too long. The solution is exactly the same too: Set the container in a bowl of hot tap water. After about 15 minutes, I emptied the container and refilled it with hot water. After about a half hour, the epoxy regained its normal consistency. Good as new! — Ken Holte
Here’s a safe and sound way to make long cuts with a circular saw on plywood clamped to a worktable. Cut about 12 in. into the plywood, then twist a piece of duct tape into a bow tie, with up-and-down adhesive faces. Slide it in the saw kerf and press the tape down above and under the plywood. Now as you finish the cut, the trailing end can’t curl down dangerously as you saw. Hats off to Mike Connelly for simplifying this job. Check out how to make this DIY duct tape wallet.
My planer blasts shavings all over the shop floor. I decided to make my own dust chute from 4-in. PVC sewer pipe (which has thinner walls than regular Schedule 40 pipe) and a couple caps. I cut a slit in the pipe and used a heat gun to soften the plastic. That allowed me to open the slit. (Heating PVC releases fumes; ventilation is critical.) I then drilled holes in the flap and screwed it to the planer housing. Finally, I cut a 2-1/2- in. hole in one of the end caps to accept my shop vacuum hose. Works great! — Luis Arce. Here’s what else you can do with PVC pipe.
If you bought this superb polished table in a store, it would cost you a fortune, but our detailed instructions will help you make one for less than $100. And it looks like highly polished stone, but no-one would know it’s actually made from concrete with a wooden base. Also, you can embellish the top with leaf prints, like the table shown here, or personalize it with glass or mosaic tiles or imprints of seashells.
Hardwoods, botanically known as angiosperms, are deciduous and shed their leaves annually with temperature changes.[8] Softwoods come from trees botanically known as gymnosperms, which are coniferous, cone-bearing, and stay green year round.[8] Although a general pattern, softwoods are not necessarily always “softer” than hardwoods, and vice versa.[9]
Cedars are strong, aromatic softwoods that are capable of enduring outdoor elements, the most common of which is the Western Red Cedar. Western Red Cedar can sustain wet environments without succumbing to rot, and as a result is commonly used for outdoor projects such as patios, outdoor furniture, and building exteriors. This wood can be easily found at most home centers for a moderate price.[12]

custom woodworking