How much sand required for 1000 sq ft rcc roof slab? The amount of sand required for a 1000 square foot RCC (Reinforced Cement Concrete) roof slab depends on the thickness of the slab and the mix ratio of concrete being used. Typically, for a standard 4-inch (0.33 feet) thick slab, you would need about 0.018 cubic yards or approximately 0.49 cubic feet of sand per square foot. So for a 1000 square foot slab, you would need approximately 490 cubic feet of sand.

When we are planning of new house construction there is a lot of questions arises in our mind how much unit of sand required for 1000 sq ft house. Looking around your budgets and plan to estimate. Construction of your house estimate consist of all direct and indirect cost of building materials such as sand, fine aggregate or stone, sand, cement and steel.

Sand weight is calculated on the basis of density of river sand and M sand (manufactured sand), natural sand is obtained from river Basin and artificial or manufactured sand is is obtained by crushing of stone in Crusher mill into fine particles.

The sand which are collected from river basin known as river sand, it is find sand. And the sand which are collected by crushing of stones are known as M sand (manufactured sand). Sand is not only required for preparing RCC, mortar and plaster but also used for filling and flooring too.

Generally density of M sand is more than compared to River sand. 1 CFT sand weight in kg generally depend on many factors like wet, dry, loose & packed sand condition.

One unit of sand is equal as 100 cubic feet or 1 brass. One unit of sand = 1 brass which is equal to 100 cubic feet volume and it is also used as measuring of surface area of 100 square foot. 100 cft is equal to 1unit of sand hence 100cft = 1unit

The terms “unit” is used locally in tamilnadu for measuring majorly for sand, 20mm aggregate (mukka jally), 40mm aggregate(1.5″ jally). Usually lorry suppliers use this term often because they supply those above said materials. Lorries comes with 1 unit, 2 unit ,4 unit lorry, 7 unit, 8 unit capacity.

Generally roof slab thickness is kept about 4 inch thick at general a standard used for residential building and thickness of 5 to 6 inch for commercial use, in this article we calculate cement required for RCC roof slab at 4 inch, 5 inch and 6 inch thickness.

Roof slab casting is process of laying and putting concrete mix in horizontal direction and structure over brickwork. Cast of roof slab reinforcement main bar and cross bar in distributed over shuttering areas of roof slab and then we put concrete mix of M20 or m25 grade of concrete that is known as roof slab casting.

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**How much sand required for 1000 sq ft rcc roof slab**

As per thumb rule, on approximately 0.17 cubic feet of sand is used per sq ft of rcc roof slab construction at 4 inch thick by using 1:2:3 mix (1 cement :2 sand:3 aggregate) to gain 3000 Psi compressive strength of concrete in 28 days. Thus, 17 cubic feet of sand required for 100 sq ft rcc roof slab at 4 inch thick.

**Quantity of sand required per sq ft for slab**

For rcc roof slab construction at 4 inch thick, ground floor building, using thumb rule, you will need approximately 0.17 cubic feet of sand per sq ft of slab, so sand required per sq ft = area of slab in sq ft × 0.17 in cubic feet.

**Amount of Sand required for a 500 sq ft slab**

For 500 sq ft slab construction at 4 inch thick, using thumb rule, you will need approximately 85 cubic feet of sand. As 0.17 cubic feet of sand is used per sq ft of slab area, sand required = 500 ×0.17 = 85 cft, so that makes a total of 85 cubic feet of sand required for 500 sq ft slab by using 1:2:3 (1 cement :2 sand:3 aggregate) mix.

**Sand quantity required for 400 sq ft slab**

For 400 sq ft slab construction at 4 inch thick, using thumb rule, you will need approximately 68 cubic feet of sand. As 0.17 cubic feet of sand is used per sq ft of slab area, sand required = 400 ×0.17 = 68 cft, so that makes a total of 68 cubic feet of sand required for 400 sq ft slab by using 1:2:3 (1 cement :2 sand:3 aggregate) mix.

**Sand quantity required for 600 sq ft slab**

For 600 sq ft slab construction at 4 inch thick, using thumb rule, you will need approximately 102 cubic feet of sand. As 0.17 cubic feet of sand is used per sq ft of slab area, sand required = 600 ×0.17 = 102 cft, so that makes a total of 102 cubic feet of sand required for 600 sq ft slab by using 1:2:3 (1 cement :2 sand:3 aggregate) mix.

**Sand quantity required for 800 sq ft slab**

For 800 sq ft slab construction at 4 inch thick, using thumb rule, you will need approximately 136 cubic feet of sand. As 0.17 cubic feet of sand is used per sq ft of slab area, sand required = 800 ×0.17 = 136 cft, so that makes a total of 136 cubic feet of sand required for 800 sq ft slab by using 1:2:3 (1 cement :2 sand:3 aggregate) mix.

**Sand quantity required for 900 sq ft slab**:- for 900 sq ft slab construction at 4 inch thick, using thumb rule, you will need approximately 153 cubic feet of sand. As 0.17 cubic feet of sand is used per sq ft of slab area, sand required = 900 ×0.17 = 153 cft, so that makes a total of 153 cubic feet of sand required for 900 sq ft slab by using 1:2:3 (1 cement :2 sand:3 aggregate) mix.

**Sand quantity required for 1000 sq ft slab:**– for 1000 sq ft slab construction at 4 inch thick, using thumb rule, you will need approximately 170 cubic feet of sand. As 0.17 cubic feet of sand is used per sq ft of slab area, sand required = 1000 ×0.17 = 170 cft, so that makes a total of 170 cubic feet of sand required for 1000 sq ft slab by using 1:2:3 (1 cement :2 sand:3 aggregate) mix.

**Sand quantity required for 1200 sq ft slab**

For 1200 sq ft slab construction at 4 inch thick, using thumb rule, you will need approximately 204 cubic feet of sand. As 0.17 cubic feet of sand is used per sq ft of slab area, sand required = 1200 ×0.17 = 204 cft, so that makes a total of 204 cubic feet of sand required for 1200 sq ft slab by using 1:2:3 (1 cement :2 sand:3 aggregate) mix.

**Sand quantity required for 1400 sq ft slab**

For 1400 sq ft slab construction at 4 inch thick, using thumb rule, you will need approximately 238 cubic feet of sand. As 0.17 cubic feet of sand is used per sq ft of slab area, sand required = 1400 ×0.17 = 238 cft, so that makes a total of 238 cubic feet of sand required for 1400 sq ft slab by using 1:2:3 (1 cement :2 sand:3 aggregate) mix.

**Sand quantity required for 1500 sq ft slab**

For 1500 sq ft slab construction at 4 inch thick, using thumb rule, you will need approximately 255 cubic feet of sand. As 0.17 cubic feet of sand is used per sq ft of slab area, sand required = 1500 ×0.17 = 255 cft, so that makes a total of 255 cubic feet of sand required for 1500 sq ft slab by using 1:2:3 (1 cement :2 sand:3 aggregate) mix.

**Sand quantity required for 1600 sq ft slab**

For 1600 sq ft slab construction at 4 inch thick, using thumb rule, you will need approximately 272 cubic feet of sand. As 0.17 cubic feet of sand is used per sq ft of slab area, sand required = 1600 ×0.17 = 272 cft, so that makes a total of 272 cubic feet of sand required for 1600 sq ft slab by using 1:2:3 (1 cement :2 sand:3 aggregate) mix.

**Sand quantity required for 1800 sq ft slab**

For 1800 sq ft slab construction at 4 inch thick, using thumb rule, you will need approximately 306 cubic feet of sand. As 0.17 cubic feet of sand is used per sq ft of slab area, sand required = 1800 ×0.17 = 306 cft, so that makes a total of 306 cubic feet of sand required for 1800 sq ft slab by using 1:2:3 (1 cement :2 sand:3 aggregate) mix.

**Sand quantity required for 2000 sq ft slab**

For 2000 sq ft slab construction at 4 inch thick, using thumb rule, you will need approximately 340 cubic feet of sand. As 0.17 cubic feet of sand is used per sq ft of slab area, sand required = 2000 ×0.17 = 340 cft, so that makes a total of 340 cubic feet of sand required for 2000 sq ft slab by using 1:2:3 (1 cement :2 sand:3 aggregate) mix.

**Sand quantity required for 2200 sq ft slab**

For 2200 sq ft slab construction at 4 inch thick, using thumb rule, you will need approximately 374 cubic feet of sand. As 0.17 cubic feet of sand is used per sq ft of slab area, sand required = 2200 ×0.17 = 374 cft, so that makes a total of 374 cubic feet of sand required for 2200 sq ft slab by using 1:2:3 (1 cement :2 sand:3 aggregate) mix.

**Sand quantity required for 2400 sq ft slab**

For 2400 sq ft slab construction at 4 inch thick, using thumb rule, you will need approximately 408 cubic feet of sand. As 0.17 cubic feet of sand is used per sq ft of slab area, sand required = 2400 ×0.17 = 408 cft, so that makes a total of 408 cubic feet of sand required for 2400 sq ft slab by using 1:2:3 (1 cement :2 sand:3 aggregate) mix.

**Sand quantity required for 2500 sq ft slab**

For 2500 sq ft slab construction at 4 inch thick, using thumb rule, you will need approximately 425 cubic feet of sand. As 0.17 cubic feet of sand is used per sq ft of slab area, sand required = 2500 ×0.17 = 425 cft, so that makes a total of 425 cubic feet of sand required for 2500 sq ft slab by using 1:2:3 (1 cement :2 sand:3 aggregate) mix.

**Sand quantity required for 3000 sq ft slab**

For 3000 sq ft slab construction at 4 inch thick, using thumb rule, you will need approximately 510 cubic feet of sand. As 0.17 cubic feet of sand is used per sq ft of slab area, sand required = 3000 ×0.17 = 510 cft, so that makes a total of 510 cubic feet of sand required for 3000 sq ft slab by using 1:2:3 (1 cement :2 sand:3 aggregate) mix.

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**Conclusions**:-

As per thumb rule, you will need approximately 0.17 cubic feet of sand per sq ft of rcc roof slab construction at 4″ thick by using 1:2:3 (1 cement :2 sand:3 aggregate) mix, so that makes a total of 170 cubic feet of sand are required for 1000 sq ft slab.