Walnut and maple., it's an inch and a quarter thick, 12 1/2 inches wide and about 17 inches long. While it is an end grain cutting board I actually built it with kneading dough in mind, I don't intend to cut on this one, not for awhile anyway. Built it this weekend and baked some bread with it today. Which is why my mixer is covered in flour. I'm really happy with this one.
Welcome to the woodworking community and thank you for your kind compliments!
This board is designed to minimize the damage it takes from knives in two ways: First, it's made out of two rather hard wood species, black walnut and hard maple. Take it from the man who hand planed it, it is NOT easy to push steel through this material. Second, it's an end grain cutting board. All of the individual "boards" that make up the panel are turned end-grain up to present their "ends" to the cutting surface.
The obvious way to make a cutting board out of wood is to take a plank, put it on your counter and start cutting food on it. Try this and you'll find it doesn't last long, because your knife will sever the fibers in the surface which will start to detach into the food and leave slashes behind for bits of food and bacteria to fester in...not great. If you cross-cut that plank into wide but short strips, turn them 90 degrees so the end grain is facing up, and glue them back together, now you have a surface where all the fibers are standing vertically, and your knife will pass between them, often without actually severing anything.
You will sometimes hear end grain cutting boards called "self-healing" which is a bit of an exaggeration. Smaller knife marks may not have actually cut anything and instead just moved some of the wood fibers around a little, and changes in heat, humidity and mechanical action may put them back where they were and the mark disappears. Washing and oiling the board may take some of the shallower knife marks out.
Keeping your knife sharp and using good cutting technique will also minimize the damage done to any cutting board simply because you won't have to push as hard to make the cut. Ultimately though the board is considered a wear item. It will start to show knife marks and even start to wear down over time. I have a wood shop, so if it starts getting unacceptably worn I can plane a few thousandths of an inch off, sand it, oil it and keep right on going. I plan on having this cutting board in service until I'm too old to handle kitchen knives anymore.
Also, it'll be awhile before this particular board ever feels a knife; I'm using it as a dough kneading surface. I'll continue to use this one for cutting.
Sanding isn't that bad, I put on a noise cancelling headset with some tunes on and then I can just vibe out while the random orbital does the work. It's kind of a nice change of pace from the constant thinking about dimensions and processes. Sanding a cutting board can become an hour of guaranteed peace.
Ooh that sounds good, keep us up to speed on any developments. If peanut butter doesn't work out, maybe caramel? Or butterscotch? Baking season is upon us, I may have to give it a whirl myself.