The Ontario Building Code | Copper Tube
7.3.3.10. copper Tube
(1) Types M and DWV copper tube shall not be bent.
(2) Bends in copper tubing of soft or bending temper shall be made with tools manufactured and sized for the purpose.
In Plain Language
Copper tube of Types M and DWV can't be bent; bends in softer, bendable copper tubing must be made using tools designed and sized specifically for that purpose, to avoid kinking or weakening the tube.
This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.