How much cement, steel, sand and bricks does a house need?
Published 5 Oct 2026
A typical RCC-framed house in India needs about 0.4 to 0.5 bags of cement, 3.5 to 4.5 kg of steel, 0.8 to 1.2 cubic feet (cft) of sand and 1.0 to 1.35 cft of aggregate for every square foot of built-up area. Bricks vary the most, from about 5 to 6 per sq ft on a simple plan to well above that when walls are many or thick. These are planning figures: good for a first budget, not for placing an order.
Thumb rules per sq ft of built-up area
Built-up area (BUA) is the covered area you are building, walls included. The table converts each rule for a 1,200 sq ft ground-floor house.
| Material | Per sq ft of BUA | 1,200 sq ft house | What the rule covers |
|---|---|---|---|
| Cement (50 kg bags) | 0.40 - 0.50 bags | 480 - 600 bags (24 - 30 tonnes) | RCC, masonry mortar, plaster and flooring together |
| Steel (TMT bars) | 3.5 - 4.5 kg | 4,200 - 5,400 kg | Footings, columns, beams, slabs; some published rules run to about 4.75 kg |
| Sand | 0.8 - 1.2 cft | 960 - 1,440 cft | Concrete, mortar and plaster |
| Coarse aggregate | 1.0 - 1.35 cft | 1,200 - 1,620 cft | RCC and PCC |
| Bricks (9 x 4.5 x 3 in) | 5 - 6 | 6,000 - 7,200 | Assumes roughly 11 - 12 cubic metres of brickwork per 1,000 sq ft |
Why published numbers disagree
Search any of these quantities and you will find sources that differ by 50% or more, especially for bricks and sand. The gap is rarely an error. It comes from what each rule assumes:
- Wall plan. Brick count depends on total wall length, wall thickness (230 mm or 115 mm), height and parapet. A plan with many partitions needs far more bricks per sq ft than an open plan.
- Wall material. AAC or fly-ash blocks are bigger than bricks, so the count falls while the volume of masonry stays similar.
- What is included. Some rules count only the structure. Others add plaster, flooring and external works, which raises cement and sand.
- Number of floors. Upper floors need heavier columns and more steel per sq ft than a single storey.
If your count is far from the table, the wall plan is the usual reason. Measure it rather than averaging the internet.
How to use the thumb rules in four steps
- Get the built-up area. Add every covered floor. Leave out open terraces, open courtyards and open parking.
- Pick the low or high end. Use the low end for a single storey with short spans. Use the high end for G+1 or G+2, long spans, cantilevers or soft soil.
- Multiply. BUA x the per-sq-ft rate for each material.
- Add wastage and check local rates. Add the wastage your contractor and specification allow, then price against current material rates by city.
Worked example: 1,200 sq ft, single storey
Using the middle of each range: cement 0.45 bags x 1,200 = 540 bags; steel 4.0 kg x 1,200 = 4,800 kg; sand 1.0 cft x 1,200 = 1,200 cft; aggregate 1.2 cft x 1,200 = 1,440 cft; bricks 5.5 x 1,200 = 6,600.
The real figure for your plan could sit anywhere inside the ranges above. That spread is the reason to move to a measured estimate before ordering.
Where thumb rules break down
- Foundation type. Isolated footings, raft and pile foundations use very different concrete and steel. The rules above assume a conventional footing-and-column frame.
- Structural design. Steel is set by the structural drawing, not by area. Read it from the schedules (see how to read a structural drawing schedule).
- Scope. The rules cover the civil structure, masonry, plaster and flooring. They leave out electrical and plumbing services, interiors, a compound wall and external development.
From a thumb rule to a measured quantity
Thumb rules get you to a number in a minute. A measured estimate gets you to the number you can order against.
- Calculate steel properly with how to calculate steel quantity from drawings.
- Learn the full method in how to make a BOQ from drawings.
- Check the units each item is measured in with units of measurement in an Indian BOQ.
- Fill an item-wise BOQ in the online BOQ editor, starting from a ready-filled example, or upload working drawings to the Detailed Estimate for quantities measured from your drawings, which you check before the BOQ is made.
Get the measured version
The online BOQ editor starts from a ready-filled BOQ you change item by item. It is free to start and needs no login until you save or export.
Frequently asked questions
How much cement is needed for a 1,000 sq ft house?
About 400 to 500 bags of 50 kg, using 0.4 to 0.5 bags per sq ft of built-up area. The exact figure depends on the slab and beam layout and the plaster thickness.
How much steel is needed for a 1,000 sq ft house?
About 3.5 to 4.5 tonnes of TMT bars for a typical RCC frame. G+1 and G+2 houses sit at the upper end.
How many bricks are needed for a 1,000 sq ft house?
Roughly 5,000 to 6,000 for a simple single-storey plan. A plan with many partitions, 230 mm internal walls or a tall parapet can need considerably more.
Can I order materials from thumb rules?
No. Use them to budget. Order from a measured BOQ that accounts for your drawings, with wastage added.
Do these figures include finishes?
They include plaster and flooring materials. They exclude interior finishes, services, a compound wall and contractor overhead.