Fastening of Wood Furring

(1)  Furring shall be fastened to the framing or to wood blocks with not less than 51 mm nails.

=

Article 9.29.3.2. Ontario Regulation 332/12 Building Code,   Information published by oncodes.ca for educational purposes only.

Note : The term furring is used to describe the use of wooden strips or beams to create a true plane on which to attach or strap flat surface materials.