What Is Staircase?
A staircase is defined as a set of steps from one floor to another floor or a combination of the riser and treads to make easy transportation from one floor to another floor in a building.
The staircase is one of the important components of any building structure. The stair provides easy access from one level to another level above or below.
Details staircase estimate is required before construction any stair and also staircase reinforcement calculations.
Read More: Dog-Legged Staircase Details and Design Calculation
Various Components of Stairs
The following are the different stairs components,
- Step
- Tread
- Riser
- Going
- Flight
- Landing
- Nosing
- Line of Nosing
- Winders
- String or Stringers
- Newel Post
- Soffit
- Baluster/Spindle
- Balustrade
- Railing
- Handrail
Read More: How To Calculate Steel Quantity From Drawing
Staircase Reinforcement Calculation

Stairs Reinforcement Calculation
Staircase Estimation Sheet
The following is staircase steel calculation excel sheet,
No. | Description | Nos. | Length | Width | Depth | Quantity | Unit |
---|---|---|---|---|---|---|---|
1 | RCC Work (1:1.5:3) Including Centering and Shuttering but excluding Reinforcement | Â | Â | Â | Â | Â | Â |
 | i) Base on Toe Wall:  H = 0.23 + 0.05 + 0.025     = 0.305 m |
1 | 1.00 | 0.30 | 0.305 | 0.09 | cu. m. |
 | ii) Waist Slab of Flight: L = √(2.75²+1.65²) = 3.21 m |
2 | 3.21 | 1.00 | 0.305 | 0.96 | cu. m. |
 | iii) Landing(Middle & First Floor) B = 1.20 + 0.15(Bearing)   = 1.35 m |
2 | 2.30 | 1.35 | 0.305 | 0.93 | cu. m. |
 | iv) Steps without nosing | 2×11 | 1.00 | 0.5*0.25 | 0.305 | 0.41 | cu. m. |
2 | 20 mm Cement Plaster(1:6) in Steps | Â | Â | Â | Â | Â | Â |
 | Tread | 2×11 | 1.00 | 0.25 |  | 5.50 | sq. m. |
 | Rise | 2×11 | 1.00 | 0.15 |  | 3.30 | sq. m. |
 | Ends of Steps | 2×11 | 0.5×0.25 | 0.15 |  | 0.41 | sq. m. |
 | The inner edge of the waist slab | 2 | 3.21 | 0.15 |  | 0.96 | sq. m. |
3 | 2.5 cm nosing in steps in 1:3 Cement Mortar |
2×12 | 1.00 | Â | Â | 24.00 | run. m |
4 | 2.5 cm C. C. Floor Finishing for middle and first-floor landing |
2 | 2.30 | 1.20 | Â | 5.52 | sq. m. |
5 | M.S ornamental grill for railing | 2 | 3.21 | 1.00 | Â | 6.42 | sq. m. |
6 | Ornamental wooden hand Rail | 2 | 3.21 |  |  | 24.00 | run. m |

7 | Reinforcement: Main Steel 100 dia. @ 120 mm c/c |
 |  |  |  |  |  |
---|---|---|---|---|---|---|---|
 | i) Lower flight and landing: | 10 | 4.99 | @ | 0.62 | 30.94 | kg |
 | L = 3.21 + 0.3(at toe) + 1.2 + 2x9x0.010(hook) – 2×0.025(cover) = 4.99 m |
 |  |  |  |  |  |
 | No. of Bars = (1/0.12) + 1 = 9.33 =10 |  |  |  |  |  |  |
 | ii) For the upper flight, middle and    first-floor landing |
10 | 6.04 | @ | 0.62 | 37.45 | kg |
 | L = 0.15+1.2+3.21+1.2+0.15+2x9x0.010        – 2×0.025  = 6.04 |
 |  |  |  |  |  |
 | iii) Top bars ( 10mm dia.) in middle and First-floor landing. |  |  |  |  |  |  |
 | L = 0.15 + 1.2 + 47 x 0.010(Ld) + 2x9x0.010 – 0.025   = 1.98 m |
2×10 | 1.98 | @ | 0.62 | 24.55 | kg |
 |  |  |  |  | Total | 92.9 | kg |

Read More: Estimation Of A Building With Plan
Staircase Reinforcement Calculation
Download Staircase Estimation Excel Sheet
The following excel sheet to staircase reinforcement calculation
Watch Video: How to Calculate Staircase Concrete & Steel Quantity
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How do I unlock your staircase excel sheet? thanks
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What a nice article is this, I cannot wait to reinforce my staircase