SS Canadian Constructor was a 7,178 GRT refrigerated ship built in 1922 by Halifax Shipyards Ltd in Nova Scotia. The ship had 12 corrugated furnaces with a combined grate area of 264 square feet (25 m2) heating her four 180 lbf/in2 single-ended boilers, which had a combined heating surface of 10,848 square feet (1,008 m2). The boilers fed a 705 NHP triple expansion steam engine that was built by Tidewater Shipbuilders Ltd of Trois-Rivières, Quebec. Her hull had a 13-ton fore peak tank and a 128-ton aft peak tank.