[1][2][3] Production of the boat was commenced in 1984 by Tanzer Industries of Dorion, Quebec.
[1][3][4] The Tanzer 31 is a small recreational keelboat, built predominantly of fibreglass, with wood trim.
It has a masthead sloop rig, a spade-style rudder and a fixed fin keel.
[1][2][3] It is powered by an inboard-mounted Japanese-built Yanmar Diesel engine of 15 hp (11 kW), with a 44 US gal (167 L) fuel tank.
[1][3] The boat has a PHRF racing average handicap of 168 with a high of 182 and a low of 159.