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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 / suman biswas
tread is the horizontal portion of a step,on which we place our feet
rise is the vertical portion of step supporting the tread
standard size :16cm(rise)*26cm(tread)
the length of stair-case may differ,but the no of steps should not be less than 3 and more than 12 for one flight...
the angle between floor and landing is 30-45 degree
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