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How To Calculate Staircase Concrete Quantity



The calculation of concrete quantities is the first step in the process of constructing a concrete staircase. People need to know how much material should be purchased for construction to proceed smoothly. But it's a huge mathematical process, showing the dimensions of the stairs and how they will be built. construction.
Concrete Quantity Calculations The images will show you the calculations on the piece of paper and the link bellow will explain it better.
Staircase quantity
R.C.C. work (staircase)
Base Toe wall
L X B X H 1.10 x 30 cm x 23 cm 1.10 x 0.30 x 0.23 = 0.076 cu. Meter
No. of Toe wall is one
Therefore, total volume of Toe wall = 0.076 x 1 = 0.076 cubic meter
Waist slab of flights
Volume = L X B X H

Length of waist slab =
Length of waist slab = L = 3.05 meter  Breadth of waist slab = 1.15 meter
Adding bearing 15 cm    1.15 cm + 1.15 cm = 1.30 meter
Thickness of waist slab is 15 cm.
Therefore, volume of waist slab = L X B X H
Volume of waist slab = 3.05 x 1.30 x 0.15
Volume of waist slab = 0.594 m3
No. of waist slab is 2
Therefore, volume of waist slab = 0.594 x 2 = 1.190 m3


Landings
Length of landing = 2.30 meter
Add 15 cm bearing both ends
i.e. = 2.30 + 15 cm + 15 cm = 2.60 meter

Breadth of landing is 1.15 cm
Add 15 cm bearing as per drawing
i.e. = 1.15 cm + 15 cm = 1.30 meter

Thickness of landing slab is 15 cm i.e. 0.15 meter
Therefore, volume of landing = L X B X C
Volume of landing = 2.60 x 1.30 x 0.15
Volume of landing = 0.507 meter

No. of landing is 2
Therefore, total volume of landing = 0.507 x 2 = 1.014 cubic meter


Steps without slanting
Length of steps without slanting
= 2.3 m / 2               (As per drawing)
= 1.15 meter

Breadth of steps without slanting
= ½ x 0.25   (Triangle formula)
= 0.125 meter

Height of step without slanting is 16 cm
i.e. 0.16 meter

therefore, volume of step without slanting = L X B X H
volume of step without slanting = 1.15 x 0.125 x 0.16
volume of step without slanting = 0.023 m3  (cubic meter)

no. of steps is 20
therefore, total volume of steps without slanting = 0.023 x 20 =0.460 m3 

steps with slanting’s

length of steps with slanting’s
= 2.3 m / 2        (As per drawing)
= 1.15 meter

Breadth of step with slantings
= ½ x 0.03   ( ie. 0.28 – 0.25 = 0.03) = 0.0153 meter
Height of step with slantings is 16 cm i.e 0.16 meter
Therefore, volume of step with slanting = L X B X H
Volume of step with slanting = 1.15 x 0.0153 x 0.16
Volume of step with slanting = 0.00281

No. of steps with slanting is 20
Therefore, total volume of steps with slanting = 0.00281 x 20 = 0.055 m3

Total volume of staircase is = 0.076 + 1.190 + 1.014 + 0.460 + 0.055
Total volume of staircase is = 2.765 m3   (cubic meter)