NASCLA Commercial Building Exam Newest
2025/2026 Questions and Correct Answers
Already Graded A+|Assured Success
Where handrails are not continuous between flights, the handrails should extend
horizontally how many inches? - CORRECT ANSWER-12 inches
Clear space between handrail and wall - CORRECT ANSWER-1 1/2
Required guards shall not have an opening how large? - CORRECT ANSWER-4
inches
,What is the minimum ceiling height for means of Egress? - CORRECT ANSWER-
Not less than 7 feet 6 inches
Emergency Power must illuminate for how long? - CORRECT ANSWER-No less
than 90 minutes
Elevators are required in a building with how many stories? - CORRECT
ANSWER-More than 3 (or at least 4).
What is the size of the refuge space for one wheel chair? - CORRECT ANSWER-
30 inches by 48 inches
Each area of refuge shall be separated from the remainder of the story by what? -
CORRECT ANSWER-Smoke Barrier
What is the minimum width of a door? - CORRECT ANSWER-32 Inches
The minimum clear opening height of doors shall be no less than (at least) -
CORRECT ANSWER-80 inches
,Which direction should a hinge door swing when the building occupies more than
50 people or is classified as Group "H"? - CORRECT ANSWER-In the direction of
egress
The force for pushing or pulling open interior swinging egress non fire doors shall
not exceed how many pounds? - CORRECT ANSWER-No more than 5LBS
Clear opening below a door should be no more than - CORRECT ANSWER-4
inches
Panic hardware is required when - CORRECT ANSWER-There are more than 50
possible occupants
The maximum unlatching force of panic or fire hardware should not exceed how
many pounds? - CORRECT ANSWER-15lbs
Stairway width for less than 50 people is - CORRECT ANSWER-36 inches
Stairway width for more than 50 people - CORRECT ANSWER-44 inches
Handrails should extend passed the top riser by - CORRECT ANSWER-12 inches
, Maximum handrail width is - CORRECT ANSWER-2 inches
Corridor width chart can be found in what book? - CORRECT ANSWER-2018
IBC (Thick blue book) page 287
Emergency escape and rescue openings shall have the bottom of the opening not
greater than how many inches? - CORRECT ANSWER-44 inches measure from
floor
Accessible parking Spaces chart can be found where? - CORRECT ANSWER-
2018 IBC Page 308
Net Free Ventilating area shall not be less than - CORRECT ANSWER-1/150th of
the area of the space ventilated (Page 321 IBC)
The spacing of the ties or fastenings for exterior metal veneer shall not exceed
how many inches? - CORRECT ANSWER-24 inches
Lap siding should have minimum lap of how many inches? - CORRECT
ANSWER-1 and 1/4 inches
2025/2026 Questions and Correct Answers
Already Graded A+|Assured Success
Where handrails are not continuous between flights, the handrails should extend
horizontally how many inches? - CORRECT ANSWER-12 inches
Clear space between handrail and wall - CORRECT ANSWER-1 1/2
Required guards shall not have an opening how large? - CORRECT ANSWER-4
inches
,What is the minimum ceiling height for means of Egress? - CORRECT ANSWER-
Not less than 7 feet 6 inches
Emergency Power must illuminate for how long? - CORRECT ANSWER-No less
than 90 minutes
Elevators are required in a building with how many stories? - CORRECT
ANSWER-More than 3 (or at least 4).
What is the size of the refuge space for one wheel chair? - CORRECT ANSWER-
30 inches by 48 inches
Each area of refuge shall be separated from the remainder of the story by what? -
CORRECT ANSWER-Smoke Barrier
What is the minimum width of a door? - CORRECT ANSWER-32 Inches
The minimum clear opening height of doors shall be no less than (at least) -
CORRECT ANSWER-80 inches
,Which direction should a hinge door swing when the building occupies more than
50 people or is classified as Group "H"? - CORRECT ANSWER-In the direction of
egress
The force for pushing or pulling open interior swinging egress non fire doors shall
not exceed how many pounds? - CORRECT ANSWER-No more than 5LBS
Clear opening below a door should be no more than - CORRECT ANSWER-4
inches
Panic hardware is required when - CORRECT ANSWER-There are more than 50
possible occupants
The maximum unlatching force of panic or fire hardware should not exceed how
many pounds? - CORRECT ANSWER-15lbs
Stairway width for less than 50 people is - CORRECT ANSWER-36 inches
Stairway width for more than 50 people - CORRECT ANSWER-44 inches
Handrails should extend passed the top riser by - CORRECT ANSWER-12 inches
, Maximum handrail width is - CORRECT ANSWER-2 inches
Corridor width chart can be found in what book? - CORRECT ANSWER-2018
IBC (Thick blue book) page 287
Emergency escape and rescue openings shall have the bottom of the opening not
greater than how many inches? - CORRECT ANSWER-44 inches measure from
floor
Accessible parking Spaces chart can be found where? - CORRECT ANSWER-
2018 IBC Page 308
Net Free Ventilating area shall not be less than - CORRECT ANSWER-1/150th of
the area of the space ventilated (Page 321 IBC)
The spacing of the ties or fastenings for exterior metal veneer shall not exceed
how many inches? - CORRECT ANSWER-24 inches
Lap siding should have minimum lap of how many inches? - CORRECT
ANSWER-1 and 1/4 inches
