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 / madhava reddy n
Here in the staire case RISE or RISER means short vertical
portion of the step and TREAD means the short horizintal
portion where we put or feet. The standards of the RISE
is 15 cm or 6" and that of TREAD is 30 cm or 12". Waist
slab means the supporting slab for all the steps which is
usually 10 cm (4") to 15 cm (6") thickness. And lastly
the angle between the floor and the landing should be 22.5
degrees to get the standard size of the steps otherwide we
have to increase or decrease the riser or tread.
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