Creating a wood material in Blender

 

To begin this material we must first enable the Node Wrangler add on.

Click the Edit tab in the top left corner of the screen. Then click on Preferences... to bring up the Blender Preferences window. Select Add-ons and search for Node: Node Wrangler. Then check the box. 

In the bottom left corner of the Blender Preferences window is a small icon. Click it to bring up the option to save your preferences.

Next, switch the 3D Viewport screen to the Shader Editor. (Shortcut: Shift F3)

You should see the default material.

Next we need to add a ColorRamp and a Noise Texture. Press Shift A to bring up the Add Menu. Use the search to find the ColorRamp. To quickly access the Noise Texture, use Shift A, T, then N.

Connect the ColorRamp's color output to the material shader's base color input. And connect the Noise Texture's Fac output to ColorRamp's Fac input.

With the Noise Texture node highlighted press Ctrl T. This automatically adds and connects a Mapping node and a Texture Coordinate node.

The last node we will add is a Bump node. (Shift A, and then search for Bump)

Connect the Noise texture's Fac output to the Bump's Height input. Then connect the Bump's Normal output to the Principled BSDF shader's Normal input.

On the Texture Coordinate node, disconnect from Generated output and connect to Object output instead.

Now that we have everything set up, let's adjust some settings.

Start with the Mapping node. Change the Scale: Y value to 5.

Now on the Noise Texture node, set the Scale value to 1.660, the Detail value to 16.000, the Roughnes value to 0.750, and the Distortion value to 0.500.

Then on the Bump node, set the Strength value to 0.050 and the Distance value to 0.500.

Finally, we need to change the colors on the ColorRamp to some wood like colors. I chose a dark brown and a light brown. I also moved the dark color slider more toward the middle.

If you were curious about the exact colors I chose, the HSV values for the dark brown are... H0.045, S0.767, V0.151 and the HSV values for the light brown are H0.046, S0.836, and V0.826.

If you followed the tutorial correctly, then this is the material you come up with...

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