Garlic (Allium Sativum L.) is an important root vegetable that can be used as a spice in meals and has historically been used as a remedy for various ailments in Ethiopia. The physical properties of the garlic bulbs and cloves were determined for use in the prototype design. The result showed that the equatorial diameter, polar diameter, thickness, geometric mean diameter, arithmetic mean diameter, sphericity, shape index, surface area, moisture content, hundred garlic bulb weight, bulk density, and angle of repose of the garlic bulbs were 45.89, 42.86, 30.43, 39.08 and 39.71 mm, 0.86, 1.34, 17.08 cm2, 66%, 2530 g, 596.70 kg/m3, and 49.7o for garlic bulbs, respectively. Similarly, the result of the width, length, thickness, geometric mean diameter, arithmetic mean diameter, sphericity, shape index, surface area, hundred garlic cloves weight, bulk density, and angle of repose of the garlic bulbs were 14.44, 31.02, 11.63, 17.15, and 20.07 mm, 0.57, 1.27, 4.06 cm2, 239.4 g, 468.4 kg/m3, and 37.56o for garlic cloves, respectively. Therefore, these physical and mechanical properties of garlic bulbs and cloves were used in designing machine parts.