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## Shuttering:-

Shuttering is an arrangement done for vertical surfaces to support the wet concrete till it attains the desired strength. Shuttering is a part of formwork. Follow below to know how to calculate shuttering area.

## Calculating Shuttering area:-

The shuttering is calculated in terms of Sq.M in the Rate Analysis of Shuttering. In order to calculate area of shuttering you must know how to calculate peripheral length (Perimeter) of an any shape.

Peripheral length (Perimeter):

Perimeter is the distance around a two dimensional shape.

For example square has four sides determine one side length is “s”

then peripheral length = s+s+s+s = 4s

Important Formulae for Calculating Shuttering Area:

- Perimeter of Square : 4S (S = Length of Side)
- Perimeter of Rectangle : 2[L+B] (L=Length & B = Breadth)
- Perimeter of Circle : 2πr (r = Radius of circle)
- Area of Rectangle = Length x Breadth
- Area of Square = Side x Side

Remember, each member in a structure either it may be Slab or Beam or Column it has six sides (faces). Shuttering area can be calculated by using two methods. One is by below mentioned formula and other method is by calculating the individual areas of faces. To keep it clear, i used both the methods in this article.

### Forumlae of Shuttering Area:

Shuttering area = Peripheral length (Perimeter) x Depth

## Calculation of Shuttering Area of a Column:-

Consider a column as shown in below figure. To calculate the shuttering area follow the below steps:-

For Column, shuttering is done for four sides and other two sides (the top of column is left for filling concrete and bottom is fixed to ground level). Neglect top and bottom in calculation.

The side of column is in rectangle shape with side length “l” and breadth “b”

Peripheral length of Rectangle is = l+b+l+b = 2l+2b

Shuttering area = Peripheral length (Perimeter) x Depth

Peripheral length = 2×0.8+2×0.6 = 1.6+1.2 = 2.8Sq.m

Total Area of Shuttering of a column = 2.8 x 4 = **11.2 Sq.m**

In case, the shape of column is Circular then the below mentioned fomulae is used for calculating shuttering area

**Shuttering area of Circular Column = 2πr x Depth **

## Calculation of Shuttering Area of a Beam:-

For calculation purpose i am considering the beam as shown in figure:

For Beam, shuttering is done in 5 sides and the other side (top side is left to fill concrete)

Shuttering area can also be calculated by finding out the individual area of each faces as below:

Face 1 : Area of rectangle = L x B = 0.8 x 4 = 3.2

Face 2 : Area of rectangle = L x B = 0.6 x 4 = 2.4

Face 3 : Area of rectangle = L x B = 0.8 x 4 = 3.2

Face 4 : Area of rectangle = L x B = 0.8 x 0.6 = 0.48

Face 5 : Area of rectangle = L x B = 0.8 x 0.6 = 0.48

Total Area of Shuttering = 3.2 + 2.4 + 3.2+ 0.48 +0.48

**= 9.76.Sqm**

## Calculation of Shuttering Area of a Slab:-

Slab rests on beam, there is no need of providing shuttering to the slab on four sides. Same as beam & column, the top of the slab is left to fill concrete and for curing. Hence, shuttering is only provided to the bottom of slab. The below mentioned values are considered for finding the shuttering of a slab.

Shuttering area of Slab = Bottom area of slab = L x B

Bottom Area = 5 x 4 = **20 Sq.m**

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BBS calculation

Can you show me the shutting calculation for stair case.

thanx for sharing your knowledge

Apart from others, the information ur giving is more useful to me.

Thank you so much sir.

hi naveen,

thanks for your comment

Sir can you give me idea how to calculate labor for Excavation & Brick work, plaster ?

Calculation of beams :

Sir, in my way

Face 1: 0.8×4=3.2

Face 2: 0.8×0.6= 0.48

Face 3: 0.8×4=3.2

Face 4:0.8×0.6=0.48

Face 5: 0.6×4= 2.4

Total = 9.76 sq.m

Sir,please give me answer above the calculation is right or wrong.

For beams calculation breadth is 0.6…height 0.8…is this coorect

it depends on design the values may change

Dear,

WELL EXPLAINED.

Shuttering includes battens/runners, beam bottom & side plank, founation side plank, deshuttering oil, props/ballies nails, MS Clamps.

Can you write something about them also?

Sure you can see them soon! 🙂

Please tell me the norm of billing of shuttering exp. where deduction should be taken or criteria of deduction

Thanks for sharing info .

U have a great heart

hi krishna,hope you are fine,i am giving you another mail adress and also the number,+971562708446 to add your network

Good job but so easy do measurement of shuttering Thanks

SIR THESE NOTES ARE MORE USEFULL THANKS A LOT….

this is outstanding….plzzz take a topic of estimation and costing….

Dear Krishna,

Can you please let me know the working for the wall of the well, which i want to make of cement concrete. Height would be 10 feet i.e. 3 mtrs, circumference would be 15 mtrs, and the thickness which I wish to take as 4 inches which is 0.1 mtr.

I wish to know the working of requirement of cement, sand, gravel and steel. I need to know the thickness of the vertical and horizontal steel mesh rods.