The Carpenters union filed a work assignment complaint regarding the tending of carpenters at a construction project at Algoma Steel.
The general contractor had assigned the formwork to the Carpenters, with the Labourers tending.
The Carpenters argued they should tend themselves.
The Board considered employer practice, area practice, trade agreements, collective agreement obligations, economy and efficiency, and skill and safety.
Finding that tending is at the core of the Labourers' work jurisdiction and that safety and efficiency factors also favoured the Labourers, the Board upheld the assignment of the work to the Labourers.