If I have inner radius of 54 inches and outer radius of 108 inches for a spiral straicase with 180 degree turn and the total height from floor to ceiling of 2nd level is 12 feet how many risers or steps will I have in staircase?
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The number of steps (and risers) does not depend on the radius of the spiral but rather the height of the riser... usually the riser is 8 inches tall thus 12 ft x 12 inches per foot equals 144 inches... divide that by 8 gives 18 steps -
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