RCC Roof slab cost per sq ft |What is the cost of RCC slab per sq ft |Calculate cost and quantity for RCC slab M20

rcc roof slab cost per sq ft |What is the cost of RCC slab per sq ft 

RCC (concrete+shuttering) Roof slab cost per sq ft  = Rs.150-200/- (Scroll down and get detailed calculation) - 

NOTE - The above cost exculding beam (concrete , shuttering & reinforcement)

Rcc roof slab cost per sq ft

In this Post, we know about rate analysis for RCC slab with grade M20 

(1:1.5:3). 

Rate analysis include

• material cost,
• labour cost, 
• overhead expenses,
• contractor profit ,
• cost of equipment or tools,
• cost of steel, 
• cost cement,
• cost sand aggregate,
• cost water 

The construction cost for the RCC roof slab depends on lots of variables like:

1. Thickness of slab
2. One-way or two-way slab
3. Construction method and
4. The thickness of beam and column
5. grade of concrete
6. grade of steel

Residential Building Cost per Square feet

Let us assume a slab thick 130mm, Grade M20 (concrete) & Steel Fe500

First, we calculate rate analysis for 1 m3 RCC slab work and then find rate analysis for 1sqft RCC slab work. M20 grade of rcc have cement, sand & aggregate ratio of 1:1.5:3 in which one part is cement, 1.5 part is sand and 3 part is aggregate. 

1. MATERIAL COST CALCULATION

step 1, 

Dry volume- We have the wet volume of RCC slab work is 1m3 & we have to convert wet volume into dry volume, we will multiply 1.54 by wet volume.

Dry volume = 1.54 × 1 = 1.54 m3.

 step 2

Cement quantity-  we know that cement density is 1440 kg/m3 &1 bag of cement weight is 50 kg

Quantity of cement = 1/5.5 × 1.54 m3 × 1440 kg/m3 = 4032 kg, no of bag cement for 10m3 rcc slab 1:1.5:3 (m20) = 403.2/50 = 8.06 bags

If rate of cement = INR 450 per bag, then cost of 8.06 bags cement = 80.64×350 = INR 3,628/-

step 3,

Sand quantity - Generally sand measured in CFT & cum

Quantity of sand = 1.5/5.5 ×1.54 × 35.3147 = 14.8 cft, so 14.8 cft sand quantity required for 1m3 rcc slab grade m20

If the market rate of sand is considered INR 60 per cft, then the cost of 14.8 cft of sand = 14.8 × 60 = INR 890 /-

step 4 

Aggregate quantity - Generally aggregate measured in CFT & cum

Quantity of aggregate = 3/5.5 ×1.54 × 35.3147 = 29.6 cft.

If the market rate of aggregate is considered INR 50 per cft, then the cost of 296 cft aggregate = 29.6 × 50 = INR 1,484/-

step 5

Steel quantity - Steel quantity required for RCC slab is about 80 kg -100kg per m3, So Steel required for 1m3 RCC slab = 80×1 = 80 kg =0.8 quintal.

if market rate of steel = INR 8000 per quintal, then cost of0.8 quintal steel = 0.8 × 8000 = INR 640/-.

step 6

Miscelleanus Quantity

1.5 kg of binding wire required in bar bending schedule, their rate is 65 rupees per kg,then cost of 1.5 kg binding wire = 1.5 × 65 = INR 98/-

Sub total cost of material = cost of steeel + cost of binding wire + cement cost + sand cost + aggregate cost 

= 3628 + 890 +1484 + 640 + 98 = INR 6,740/-.

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2. LABOUR COST CALCULATION

Step 1, 

labour rate and charges 

Labour rate is INR 1,560 per m3 for rcc slab

Consider shuttering + bar bending cost, if the shuttering rate is rs 30 per sq ft and bar bending cost is rs 8 per kg,

We have 1m3 = 1 × 35.3147 = 35.4 cft, thickness of RCC slab is 5 inch =5/12 = 0.416, then area of rcc slab in square feet = 354/ 0.416 = 85 sq ft, 

•  shuttering cost     = 85 × 40 = INR 3,400/- 
•  bar bending cost  = 8  × 85  = INR 680/-

Subtotal = 3400+ 680 = INR 4,080/-

Step 2

water charge

Quantity of water required in RCC concreting work used for preparing of mix & curing, consider 1.5% cost of water, then 1.5% = INR 300/-

Step 3

Overhead expenses 

consider 2% overhead expenses = INR 600/-.

Step 4, 

cost of equipment and tools 

 

consider cost of equipment or tools is 4 %,then 4% of 89041 = INR 400/-

step 5, 

contractor profit

consider contractor profit is 10%, then 10% = INR 800/-

= 4080 + 300 + 600 + 400 + 800 = INR 6,180/-.

TOTAL COST = MATERIAL COST + LABOUR COST

                       = 6,740 + 6,180

                       = Rs.12,920/-

For RCC Slab (concrete+shuttering) the amount required is 12920/85 =Rs.152/-

 RCC (concrete+shuttering) Roof slab cost per sq ft  =Rs.150-200/-

conclusion:- 

What is the cost of RCC slab per sq ft Rs.150-200/-

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