One real Ontario stair case, from application record to verified result

Follow the public evidence from Bibby v. McMahon through two visible calculations. The machine outcome and the Ontario Commission ruling can be inspected separately, then compared.

2024 ONBCC 19Ontario · Part 9 stair · historical 2012 OBC replay

Official case outcomeStair does not complyOntario Commission ruling, October 8, 2024

What is real

Start with the published Ontario decision

This is a real residential project at 10 Paris Road in Brantford. The dispute concerned an as-built secondary stair serving the upstairs bedroom area.

The questionDoes a stair with 180° winders and no separation between winder sets provide sufficiency of compliance?

Primary case recordBibby v. McMahon2024 ONBCC 19 · 2024-10-08Open source

Code used for this case2012 Ontario Building CodeO. Reg. 332/12 · Article 9.8.4.5.Open source

Decision statusFinal, but site-specificBuilding Code Act, s. 24(4)Open source

Correct code version

This historical replay correctly uses O. Reg. 332/12, Article 9.8.4.5. For current new applications, the 2024 OBC has been mandatory since April 1, 2025 and the equivalent winder provision is Article 9.8.4.6.

2024 Ontario Building Code Compendium

Evidence boundary

The decision publishes the address, project description, disputed stair configuration, code provisions, party positions, reasons, and outcome. The original drawings, photographs, Order to Comply, and full evidence package are not attached. CodeTrace labels its input as a reconstruction and does not present it as the original permit file.