I started the build for this DIY wood bin by measuring the opening in my bench. The height of the opening is about 12 inches, so I decided that a 1″ X 10″ board would work perfectly in the opening. The opening is about 21 inches deep and 12 1/2 inches wide too. I decided to make the box 12″ X 20″ to take advantage of the space, but not make the fit too tight.
Each box would need 5′ of 10″ board for the sides, front and back. I decided to use 3/4″ plywood I already had for the inset bottom.
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