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Consequently, a 2×3 lumber’s nominal seems incorrect. Technically the lumber was of the same size at the time of its sawing.
Though the nominal size of a 2×3 lumber is incorrect when measured, it’s still referred to as 2-by-3 lumber in local hardware stores. So hardware stores like home depot sell lumber by their nominal size, despite being it’s incorrect. In spite of this, the length of a 2×3 board remains the same regardless of whether it is nominal or actual. For example, if the nominal length of 2×3 is 6 feet, the actual length will be 6 feet. The nominal or advertised size of a 2×3 lumber is determined when the surfaces are sanded to make the surface smooth, and lighter by reducing the moisture content of the wood.
