The Ontario Building Code | Size and Spacing of Furring

9.29.3.1. Size and Spacing of Furring

(1) wood furring for the attachment of wall and ceiling finishes shall conform to Table 9.29.3.1.

Table 9.29.3.1.
Size and Spacing of Furring

Forming Part of Sentence 9.29.3.1.(1)

Item	Column 1	Column 2	Column 3	Column 4
	Maximum Spacing of Furring, mm	Minimum Size of Furring, mm
		Maximum Spacing of Furring supports
		Continuous supports	406 mm (o.c.)	610 mm (o.c.)
1.	305	19 × 38	19 × 38	19 × 64
2.	406	19 × 38	19 × 38	19 × 64
3.	610	19 × 38	19 × 64	19 × 89