True or False: The total building construction costs in the United States and Canada involve piping trades labor and materials.

The statement claims that total building construction costs in the United States and Canada include piping trades labor and materials. This can be evaluated by understanding what constitutes total building construction costs. Typically, total construction costs encompass a wide range of expenses including labor, materials, equipment, overhead, and profit margins associated with various trades required for construction.

Piping trades, which include plumbing, HVAC, and other piping systems, are generally a significant part of building construction. Therefore, costs related to these trades—such as labor for installation and materials used—are an integral part of the total construction expenses.

The assertion in the question is true because piping trades indeed contribute to the overall building construction costs through their specific labor and material requirements. Thus, the statement regarding the inclusion of piping trades labor and materials in total building construction costs is accurate.