Statistics About The Average Stair Width

Statistic 1

"For commercial property, the average stair width is 44 inches."

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Statistic 2

"According to the International Building Code (IBC) standard, stair tread should be at least 10 inches in depth."

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Statistic 3

"On average, a stair riser's height should be no more than 7.75 inches high."

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Statistic 4

"Handrail's height on stairs should be at least 34 inches and not more than 38 inches."

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Statistic 5

"For a stairway landing, the width should be no less than the stairway width, and at least 36 inches in the direction of travel."

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Statistic 6

"For public stairs, average width increases to a minimum of 1200mm."

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Statistic 7

"Emergency stairs or fire escapes should be at least 44 inches wide."

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Statistic 8

"The width of stair flights should be calculated according to the number of occupants, typically a minimum of 600mm for a private stair."

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Statistic 9

"Average stair width can be as low as 36 inches for spiral staircases."

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Statistic 10

"For residential stairways in Massachusetts, the minimum stair width is 36 inches."

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Statistic 11

"In New York, the stair width for Group R-3 occupancies, such as one or two-family dwellings, should be a minimum of 36 inches."

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Statistic 12

"Quebec building regulations specify a minimum residential stairway width of 860mm."

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Statistic 13

"The Alberta Building Code specifies that the minimum width of a stair in a multi-family building shall be 1100mm."

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