How much steel is required for 1200 sq ft house, hi guys in this article we know about quantity of steel is required for 1200 square feet house. Actual Steel calculation is based on as per design but if design is not given then Steel calculation is based on Thumb Rule on experience basis.
How much is steel is required for 1200 sq ft house is based on different type of criteria
1) type of structure (Load Bearing/Framed)
2) Purpose of structure (Load depends on the utility)
3) Type of dia of Bar
4) Size height of column and length of beam (in terms of height, as requirement varies according to construction i.e. whether horizontal or vertical. )
5) Most important is foundation type(depends on soil bearing conditions)
For general residential building of ground floor house we have to calculate Steel quantity. We use different types of Thumb Rule for steel calculation all type of RCC structure footing, column, beam & RCC slab.
How much steel is required for 1200 sq ft house
As per thumb rule, an average 4,200 to 4,800 kg (or 4.2 to 4.8 tons) of steel is required for building a fully furnished 1200 square feet (sq ft) house. Building a typical house requires 3.5 kg to 4 kg of steel per square foot, so the amount of steel needed to build a 1,200 square foot house is range between 4,200 kg and 4,800 kg. Because 3.5 × 1,200 = 4,200 kg or 4 × 1,200 = 4,800 kg.
Now taking various Thumb Rule for Steel quantity calculation for 1200 square feet house
1) thumb rule for steel in rcc slab is 80 kg/cubic meter of wet volume of concrete
2) thumb rule for steel in beam is 120 kg/cubic meter of wet volume of concrete
3) thumb rule for steel in column is 160 kg/cubic meter of wet volume of concrete
4) thumb rule for steel in footing is 40 kg/cubic meter of wet volume of concrete
5) thumb rule for steel in rcc structure is 120 kg/cubic meter of all calculated wet volume of concrete.
6) thumb rule for steel in rcc structure is 3.5 Kg to 4 kg/ sq ft of built up area.
If we take last thumb rule point (6), thumb rule for steel in rcc structure is 3.5 Kg to 4 kg/ sq ft of built up area.
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If built area is 1000 sq ft house we require steel quantity
= 3.5 × 1000 = 3500 Kg
= 4 × 1000 = 4000 kg
3500 Kg to 4000 Kg of Steel quantity is required for construction of 1000 square feet house.
If built area is 1500 sq ft house, we require steel quantity
= 3.5 × 1500 = 5250 Kg
= 4 × 1500 = 6000 kg
52500 Kg to 6000 Kg of Steel quantity is required for construction of 1500 square feet house.
How much steel is required for 1200 square feet house ground floor?
For the construction of residential building of ground floor we have RCC structure like footing, column, beam and slab. Taking one rough design of 1200 square feet house having different dimension of rcc structure like footing, column, beam and slab are following:
1) footing size = 1500 mm × 1500mm × 300 mm
Length of footing = 1500 mm
Width of footing = 1500 mm
Height of footing = 300 mm
Depth of earth excavation = 1500 mm
Concrete size in footing = 1200mm×1200mm×300mm
No of footing = 12
Wet volume of concrete in all 12 no of footing = 1.2 m × 1.2 m × 0.3 m × 12 = 5.184 m3
thumb rule for steel in footing is 40 kg/cubic meter of wet volume of concrete
Steel quantity = 5.184 × 40 = 208 Kg
208 Kg of Steel required in footing RCC structure of 1200 square feet of house
2) column size = 300 mm × 400 mm
No of column = 12
Height above dpc = 3000 mm
Height above rcc slab = 900 mm
Depth of earth excavation = 1500 mm
Total height of column = 5400 mm
Wet volume of concrete for all 12 column
= 0.3 × 0.4× 5.4 × 12 = 7.78 m3
thumb rule for steel in column is 160 kg/cubic meter of wet volume of concrete
Steel quantity = 7.78 × 160 = 1244 kg
1244 Kg of Steel required in column RCC structure of 1500 square feet of house.
3) plinth beam size = 300mm × 300 mm
Width of beam = 300 mm
Depth of beam = 300 mm
Overall length of all beam = 240 ft = 72000 mm
Wet volume of concrete = 0.3 × 0.3 × 72 = 6.48 m3
thumb rule for steel in beam is 120 kg/cubic meter of wet volume of concrete
Steel quantity = 6.48 × 120 = 778 kg
778 Kg of Steel required in plinth beam RCC structure of 1200 square feet of house.
4) door beam size for external wall = 225mm × 150 mm
Overall length for external beam = 140 ft = 42000 mm
Steel = 0.225 × 0.15 × 42 × 120 = 170 Kg
Door beam size for internal wall = 125 mm × 150 mm
Overall length for internal beam = 100 ft = 30000 mm
Steel = 0.125 × 0.15 × 30 × 120 = 67.5 Kg
Steel for door beam = 170 + 67.5 = 237.5 kg
237.5 Kg of Steel required in door beam of 1200 square feet of house
5) roof wall beam size for external wall = 225 mm × 200 mm
Overall length for external beam = 140 ft = 42000 mm
Steel = 0.225 × 0.2 × 42 × 120 = 227 Kg
Roof wall beam size for internal wall = 125 mm × 200 mm
Overall length for internal wall beam = 100 ft = 30000 mm
Steel = 0.125 × 0.2 × 30 × 120 = 90 Kg
Steel for roof beam = 227 + 90 = 317 kg
317 Kg of Steel required in roof wall beam of 1200 square feet of house
6) rcc roof slab = 40′ × 30’×6″
Length of slab = 40 feet
Width of slab = 30 feet
Thickness of slab = 6 inch = 0.5 feet
Volume = 40′ × 30’× 0.5′ = 600 cubic feet
1 m3 = 35.3147 cu ft
Volume = 600/35.3147 = 16.99 m3
thumb rule for steel in rcc slab is 80 kg/cubic meter of wet volume of concrete
Steel = 16.99 × 80 = 1359 Kg
1359 Kg of Steel required in rcc roof slab of 1200 square feet of house
Now Total weight of Steel required for 1200 square feet house
Footing = 208 kg
Column = 1244 kg
Plinth beam = 778 kg
Door beam = 237.5 kg
Roof beam = 317 kg
Roof slab = 1359 kg
Total weight of steel = 4143 Kg
Suppose 200 kg steel used in chhajjas, stair, septic tank & other rcc structure
Than total weight of steel = 4143 + 200 = 4343 kg
According to Thumb Rule 5% + (plus) or 5% _ (minus)
5% of 4343 = 217 Kg
That’s 4343 Kg of steel ( 208 kg in footing, 1244 kg in column, 778 kg in plinth beam, 237 kg in door beam, 317 kg in roof beam, 200 kg in chhajjas & 1359 Kg in rcc roof slab) is required for construction of residential building of ground floor of 1200 square feet house. This is a general guidelines and actual quantity may vary for special design, thanks.
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Typically, an average 4,200 to 4,800 kg (or 4.2 to 4.8 tons) of steel is required for building a fully furnished 1200 square feet (sq ft) house. Building a typical house requires 3.5 kg to 4 kg of steel per square foot, so the amount of steel needed to build a 1,200 square foot house is range between 4,200 kg and 4,800 kg. Because 3.5 × 1,200 = 4,200 kg or 4 × 1,200 = 4,800 kg.