Stair headroom
OBC 9.8.2.2At least 1,950 mm
Not dimensioned on any sheet
More information neededCheck permit drawings against the building code.
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Available soon to plan examiners, building officials, architects, builders and owners adding a laneway suite.
StairFP2, ground floor plan
Riser height
OBC 9.8.4.1125 to 200 mm per riser
14 risers. Floor to floor must be 2,800 mm or less
Needs reviewStair width
OBC 9.8.2.1At least 860 mm
1,118 mm shown
Meets41 more checks in this reviewSee the review
Stair widthOBC 9.8.2.1
1,118 mm shownmin. 860 mm
Meets- 01
Read every sheet
Floor plans, site plans, schedules and notes. Every dimension, room area and symbol is pulled out with the sheet and the spot it came from.
PDF, DXF, IFC and ZIP drawing sets
- 02
Match each value to its clause
Each value is matched to the requirement that applies, from the code edition the permit falls under, with a link to the official text.
2024 Ontario Building Code, Division B
- 03
See what passes and what fails
Meets, does not meet, needs review, or more information needed. The calculation is always shown, so anyone can check it.
Four possible answers for every check
Pick any finding to see where it came from.
The results arrive as a review a building official can check line by line: the value, the sheet, the clause and the answer.
21Meets
1Does not meet
1Needs review
21More information needed
44 checks run
Most open checks need a value these drawings leave out, such as a stair section or a floor-to-floor height. Each one names what to add.
7 of the 44 checks, picked from this review. Swipe for more.
FP2 Ground floor plan
- Drawing shows
- 3'-8" and 3'-9" (1,118 and 1,143 mm)
- Code requires
- At least 860 mm
- Result
- Meets
2024 Ontario Building Code, Division B, 9.8.2.1. Sheet FP2.
Who CodeTrace is for.
Plan examiners and building officials
See the sheet and clause behind each result.
Every value arrives with the sheet it came from and the clause it was checked against, so you confirm a result instead of hunting for it.
Architects and designers
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Run the set before you submit. Each open item says what to add or change, and on which sheet.
Builders and contractors
See which measurements could hold up the permit.
See the values the review depends on before framing starts, from riser heights to door sizes.
Owners adding a laneway suite
Read the result in plain words.
Know what already meets the code and what your designer still needs to show, before the permit office asks.
How CodeTrace checks drawings.
- 01
AI reads the drawings
Plan sheets, schedules, notes, forms and revisions are read the way an examiner reads them. Each value keeps the sheet and the spot it came from.
- 02
Code rules decide pass or fail
Each check is a written rule tied to a clause and a code edition, so the same drawings always get the same answer.
- 03
A person confirms
Values read from a scan, and anything uncertain, wait for a reviewer to confirm. Every decision is kept in an audit trail.
Checks against
- Ontario Building Code 2024
- National Building Code 2025
- BC Building Code
- Municipal zoning by-laws
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