33#
The maximum weight for an item of letter mail is
(a)in the case of an item of standard mail not more than 245 mm in length, 156 mm in width or 5 mm in thickness, 50 g; and
(b)in any other case, 500 g.
note
Federal laws of Canada reproduced under the Reproduction of Federal Law Order (SI/97-5); not the official version. Source: Justice Laws Website.