Shuttering is an essential temporary structure
in which the fresh concrete is poured for casting different members of a
structure. The shuttering is removed when concrete achieves its desired
strength. There are different materials used in making shuttering such as
plywood (as shuttering plate) Nails, wooden battens, beam bottom plates, wooden
ballies, shuttering oil etc. In this article, I am going to discuss how to
calculate quantity of shuttering by using thumb rule.
Calculate
shuttering quantity for below given slab:
Type of shuttering
– Wooden shuttering
The length of the
slab = 50 feet.
The width of the
slab = 30 feet.
Total covered area
= Length x Width = %0 x 30 = 1500 sft.
THE QUANTITY OF SHUTTERING REQUIRED:
1. PLYWOOD:
Generally, the
dimension of plywood used in regular construction is 8’x4′ and
thickness is 12 mm.
So plywood required
= Covered area x Thumb rule = 1500 x 0.02 = 30 no’s
2. WOODEN BATTENS:
Standard dimension
of wooden battens is 3″x3″
Wooden battens
required = Covered area x Thumb rule = 1500 x 0.04 = 600 rft
rft means running
feet, which is the total length of the material. We cut this total length as
per our required size.
3. NAILS:
Nails required
= Covered area x Thumb rule = 1500 x 0.02 = 30 kg.
4. BEAM BOTTOM PLATES:
The thickness of
beam bottom plate is 1.5″
Beam bottom plates
required = Covered area x Thumb rule = 1500 x 0.24 = 360 rft.
5. WOODEN BALLIES:
Wooden
ballies required for beam = Beam bottom plate running feet x Thumb rule
= 360 x 0.5 = 180
no’s
Wooden
ballies required for slab = Covered area x Thumb rule = 1500 x 0.16
= 1500 x 0.16 =240
no’s
6. MS CLAMPS:
MS Clamps required
= Covered area x Thumb rule 1500 x 0.08 = 120 no’s
7. SHUTTERING OIL:
Shuttering oil
required = Covered area x Thumb rule = 1500 x 0.006 = 9 liters
Note
1. These are just
approx quantity. To get exact quantity you need to get the exact dimension of
members where the shuttering will be used.
2. The above thumb
rules may vary with changing the dimension of shuttering plate etc.
