Staircase Reinforcement Calculation

Staircase Reinforcement | Staircase Reinforcement Details | Staircase Estimation | RCC Staircase Reinforcement3 min read

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
Parts of Stairs - Staircase Reinforcement Calculation
Parts of Stairs

Read More: How To Calculate Steel Quantity From Drawing


Staircase Reinforcement Calculation

Staircase Reinforcement Calculation
Stair Steel Reinforcement

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            
  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            
  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     24.00 run. m
4 2.5 cm C. C. Floor Finishing for
middle and first-floor landing
2 2.30 1.20   5.52 sq. m.
5 M.S ornamental grill for railing 2 3.21 1.00   6.42 sq. m.
6 Ornamental wooden hand Rail 2 3.21     24.00 run. m 
Staircase Reinforcement Calculation
Stair Steel Detail section
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
Staircase Reinforcement Calculation
Stair Steel Reinforcement Details

Read More: Estimation Of A Building With Plan

Staircase Reinforcement Calculation

Download Staircase Estimation Excel Sheet

The following this excel sheet to staircase reinforcement calculation

Watch Video: How to Calculate Staircase Concrete & Steel Quantity

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