40 Questions
What is the minimum effective depth of wooden stair stringers?
90 mm
What is the overall depth requirement for wooden stair stringers?
235 mm
What is the requirement for exterior wood steps in terms of contact with the ground?
They must be treated with a wood preservative
What section provides the requirements for the depth below ground level for foundations for exterior steps?
Section 9.12
What is the requirement for the thickness of wooden stair stringers if they are supported along their length?
90 mm
According to the National Building Code of Canada, what is the minimum width for ramps serving a single dwelling unit or a house with a secondary suite?
860 mm
According to the National Building Code of Canada, what is the maximum slope allowed for exterior ramps?
1 in 10
What is the minimum clear height over ramps according to the National Building Code of Canada?
2,050 mm
According to the National Building Code of Canada, what is the maximum rise between floors or landings for ramps with a slope greater than 1 in 12?
1,500 mm
Which of the following is considered a landing according to the National Building Code of Canada?
A ramp serving a single dwelling unit
According to the National Building Code of Canada 2015, which of the following is true about handrails on stairs and ramps?
They must be continuously graspable from the bottom riser to the top riser.
In the National Building Code of Canada 2015, when are handrails required to be continuous throughout the length of the stair or ramp?
For stairs or ramps serving a single dwelling unit or a house with a secondary suite.
According to the National Building Code of Canada 2015, what is the minimum height for handrails on stairs and ramps?
865 mm to 1 070 mm
According to the National Building Code of Canada 2015, how far should handrails extend horizontally beyond the top and bottom of each flight or ramp?
300 mm
According to the National Building Code of Canada 2015, what is the maximum projection allowed for handrails and constructions below handrails into the required width of a stair or ramp?
100 mm
According to the National Building Code of Canada 2015, where is a landing required in relation to a doorway opening onto a stair or ramp?
At the top and bottom of each flight of stairs and ramps
According to the National Building Code of Canada 2015, when is a landing not required between a doorway and a stair at the top of a stair within a dwelling unit?
When the door at the top of the stair swings away from the stair
According to the National Building Code of Canada 2015, under what conditions can a landing be omitted at the top of an exterior flight serving a secondary entrance to a single dwelling unit or a house with a secondary suite?
If the stair does not contain more than 3 risers
According to the National Building Code of Canada 2015, when can a landing be omitted at the bottom of an exterior stair or ramp?
If there is no obstruction within the width of the stair or ramp
According to the National Building Code of Canada 2015, what is the maximum slope allowed for landings?
1 in 50
According to the National Building Code of Canada 2015, what is the minimum height requirement for guards within dwelling units or houses with a secondary suite, including their common spaces?
900 mm
Which of the following is NOT required for guards for floors and ramps in garages that are 600 mm or more above the adjacent ground or floor level?
Top railing and horizontal intermediate rails
According to the National Building Code of Canada 2015, what is the maximum diameter of a spherical object that can pass through openings in guards that are not required by Article 9.8.8.1. and serve an occupancy other than an industrial occupancy?
200 mm
According to the National Building Code of Canada 2015, guards required by Article 9.8.8.1. that protect a level located more than 4.2 m above the adjacent level shall be designed to prevent climbing between which two heights?
140 mm and 900 mm
According to the National Building Code of Canada 2015, what type of glass is allowed in guards?
Both laminated or tempered safety glass and wired safety glass
According to the National Building Code of Canada 2015, which of the following is required for doors in buildings of residential occupancy where the finished floor on one side of the door is more than 600 mm above the floor or ground level on the other side?
both a guard and a mechanism
In buildings of residential occupancy, openable windows are required to be protected if they exceed which of the following dimensions?
380 mm horizontally
Which of the following conditions exempts windows from the protection requirement mentioned in Sentence (4)?
The only opening greater than 100 mm by 380 mm is a horizontal opening at the top of the window
Glazing installed over stairs, ramps, and landings that extends to less than 1,070 mm above the surface of the treads, ramp or landing must be protected by which of the following?
both guards and non-openable glazing
In dwelling units, glazing installed over stairs, ramps, and landings that extends to less than 900 mm above the surface must be protected by which of the following?
non-openable glazing
True or false: Exterior wood steps must be in direct contact with the ground unless treated with a wood preservative.
False
True or false: Wooden stair stringers must have a minimum effective depth of 90 mm.
True
True or false: Stairs cantilevered from the foundation wall must conform to Subsection 9.8.10.
True
True or false: Foundations for exterior steps must be at least 9.8.9.3 meters below ground level.
False
True or false: Wooden stair stringers must be supported and secured top and bottom.
True
True or false: Wooden stair stringers must have an overall depth of at least 235 mm.
True
True or false: Wooden stair stringers must be at least 25 mm thick if supported along their length.
True
True or false: Wooden stair stringers must be at least 38 mm thick if unsupported along their length.
True
True or false: Wooden stair stringers may be exempt from the thickness requirement in Sentence (2).
False
True or false: Stairs cantilevered from the foundation wall must be constructed and installed in conformance with Subsection 9.8.10.
True
This quiz tests your knowledge on the code requirements for doors in residential buildings with a significant height difference on either side. Learn about the necessary protection measures to ensure safety and compliance.
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