what is the difference between rise and tread? what is its
standered size? what is waist slab?what is the standered
length of staire-case? also what is the angle between floor
and landing?
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Answer Posted / prabu
tread = 250 - 300 mm
rise = 150 - 200 mm
staircase width = 0.85 - 1.5m
span/depth = 20
depth of stair case slab minimum= 160 mm
angle of staircase= 30 -45 degree
live load on staircase = (5kn/m2 max)
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