Toronto By-law 629, s. (b) — Chapter 629 Property Standards

Where a handrail serving a single dwelling unit is attached to wood studs or blocking, the attachment shall be deemed to comply with Subsection E(7)(a) where:

• [1] The attachment points are spaced not more than 1.2 metres apart;
• [2] The first attachment point at either end is located not more than 300 millimetres from the end of the handrail;
• and [3] The fasteners consist of no fewer than two wood screws at each point, penetrating not less than 32 millimetres into solid wood.