Sometimes called a shaker peg rack. Dependent upon the use the pegs may be angled above the horizontal or parallel to the deck. Plain, 1/2" dowels inserted into holes with 3" spacing on center, usually on a 1 x 3 milled edge board about 60" long.

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Gravity is a harsh mistress
SAM 002
NAR 91005
"The complexity of living is eminently favored to the simplicity of not."