1. Take light and dark brown color for foreground & background respectively
Render > Clouds

2. Filter > Add Noise
(Uniform, Monochromatic, 7)
3. Filter > Pixelate >
Mosaic
(cell size 4)

4. Distort > Shear
Follow the pattern given below

5. You get the wood texture


10 Random Photoshop Textures & Patterns :
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