Toronto : Règlement no 447, art. (c) — Chapter 447 Fences

A metal picket fence used in a swimming pool enclosure shall be constructed in a good, workmanlike manner as follows:

• [1] Vertical pickets shall be spaced not more than 38 millimetres apart where horizontal rails are spaced less than 1.2 metres apart and not more than 100 millimetres apart where horizontal rails are spaced at least 1.2 metres apart;
• and [2] Horizontal rails shall be supported on substantial posts that are spaced not more than 2.4 metres apart, securely fastened to the ground and structurally sound.