Guides
Cement bags for a 1000 sq ft house
A 1000 sq ft house built in reinforced concrete takes about 400 to 450 bags of cement start to finish, the range Prism Cement's own guide to the count publishes, and the true number for any one house comes off its drawing and its concrete mix, not off the plot size alone.
- Guides
- 1 table of figures
- Own delivery, 34 blocks
- Open all 7 days
Jay Shree Infra sells cement across the counter in Saharsa and out into Supaul and Madhepura, by the bag and by the tonne both, and stock on any one brand shifts morning to morning. A figure like 400 to 450 bags gives a first sense of scale but leaves little for placing an actual order, because a house is four or five very different jobs stacked on top of each other, the foundation, the RCC members, the brick masonry, the plaster, and each one eats cement at its own rate.
Prism Cement's own component breakdown is the table below: a 6 inch foundation, a 5 inch roof slab, 9 inch brick walls, 12 mm plaster, each with its own bag count. Add up the four job lines and the total sits well under 400, because a house holds more concrete than a foundation, a slab, a wall and a coat of plaster. Columns, beams, lintels and the floor bed all draw from the same stack, and none of the four named jobs above carries their name.
The numbers
What one published breakdown gives, job by job
Bags of cement by job, and for the house as a whole, as Prism Cement's own calculator publishes them.
Scroll the table sideways to see every column
| Where it goes | Specas published | Bagslow estimate | Bagshigh estimate |
|---|---|---|---|
| Foundation | 6 inch depth | 80 | 100 |
| RCC roof slab | 5 inch thick | 70 | 90 |
| Brick masonry walls | 9 inch thick | 35 | 40 |
| Plastering | 12 mm thick | 35 | 40 |
| Whole house, start to finish | RCC construction | 400 | 450 |
Every figure here is Prism Cement's own, published on its own site. It is a range, and the drawing decides where inside it a real order falls. The gap between the four job rows and the row for the whole house is real, and no printing error. Add the low end of foundation, slab, walls and plaster and the sum is 220 bags; add the high end and it is 260, both well short of the 400 the whole house row starts at. Columns, beams, lintels and the floor bed make up the difference, RCC members that eat cement and carry no row of their own in this table.
Read the table as a planning number, not a delivery note. It tells a buyer roughly what scale of order a 1000 sq ft house sits at before a single drawing exists; it does not tell this shop, or any shop, how many bags to load for a particular Tuesday.
The mix
Why the range moves as much as it does
A cubic metre of concrete has its own bag count before a house is ever mentioned, and that is where the real number starts. UltraTech's own page on the M20 mix puts it at about 8 bags, roughly 400 kg, per cubic metre in the nominal 1:1.5:3 ratio, the mix most house slabs and columns are cast in without a lab test. A design mix, tested in a lab and the one engineers prefer for RCC work that matters, can land on either side of that figure depending on the aggregate and the strength wanted.
Neither number depends on the plot being 1000 sq ft. It depends on how many cubic metres of RCC the drawing actually calls for, a question about column sizes, beam depths and slab thickness, not about the floor area printed on a site plan. Plastering runs on its own separate arithmetic again: UltraTech's own figure is 1 to 1.5 bags per 100 sq ft at 12 mm thickness, which is why the plaster row in the table above sits close to the wall row even though the two jobs have nothing else in common.
At this counter
How an order actually gets built here
Tell us what stage the work is at and we work off that stage's own count, not the whole house figure at once. A foundation order and a roof slab order are two different calls, weeks or months apart, and the bags standing on our floor the day of one have nothing to do with the day of the other. Cement sells here by the bag or by the tonne, and which one you are on gets fixed before the vehicle is booked. If a structural drawing or a bill of quantities already exists, read us the RCC volumes off it and we will talk in cubic metres instead of square feet, which is the basis the site itself is actually built on.
Which grade goes into which pour is its own question, answered on the cement for a roof slab guide, and how a multi-bag order should stand once it lands on site, especially through a wet season, is on the cement storage guide.
The limit
Where a thumb rule like this one stops
A figure like 400 to 450 is a budgeting number, published by one cement company for early planning, and it is not a standard's figure, because no BIS standard fixes how many bags a house eats, only how the cement itself has to perform once mixed. Treat it as a first sense of scale for a plan still on paper.
Once a drawing exists, the drawing decides. Where the two disagree, the published range loses every time, and that is exactly what it is for: a number to plan around before the real one is known, not a number to build to.
Sources
One published calculator, and two pages behind the mix
Prism Cement's own breakdown for the count, and UltraTech's own pages for why a cubic metre of concrete needs what it needs.
Questions
Cement bori ke sawal
1000 sq ft ghar me kitni bori cement lagti hai?
Published figures put it at 400 to 450 bags for a full RCC house, a range Prism Cement's own calculator gives, and the real count for any one house comes off its drawing and its concrete mix rather than off the floor area alone. Ring +91 6202 967 218 with the stage you are at and we will talk bags for that stage, not the whole house at once.
Sirf foundation ke liye kitni bori chahiye?
About 80 to 100 bags for a 6 inch foundation on a 1000 sq ft plan, again a published range and not a site-specific number. A foundation drawing with its actual depth and footing sizes settles it closer than any thumb rule can.
5 inch slab aur 6 inch slab me kitna fark padta hai?
On published figures a 5 inch roof slab runs 70 to 90 bags for a 1000 sq ft house. A thicker slab draws more cement roughly in proportion to the extra concrete volume, which is why the actual thickness on the drawing decides the count, not a guess made at the site.
Ginti bori me di hai, order bhi bori me hi dena hoga kya?
Both are sold here, and the choice usually follows the size of the order: a small stage like plaster stays in bags, a full slab pour often moves to the tonne. Tell us the count you are working to and we fix the basis before the vehicle is booked.
Nominal mix aur design mix me cement ki matra alag kyun hoti hai?
A nominal mix, the fixed 1:1.5:3 ratio most house slabs use, runs about 8 bags per cubic metre on UltraTech's own published figure. A design mix is tested in a lab first and can land on either side of that number depending on the strength wanted, which is why an engineer's drawing changes the bag count even for the same volume of concrete.
Before you order
Bori count, settled stage by stage
Each one moves the number away from the published range and toward this particular house.
Which stage is the order for, foundation, walls or the roof slab?
Each stage has its own bag count in the table above, and the four rarely happen in one order or one week.
Is there a structural drawing or a bill of quantities for this house?
Read us the RCC volumes in cubic metres and we work from that, not from the plot's square footage.
Is the concrete going in as a nominal mix or a design mix from a lab?
A nominal mix runs about 8 bags a cubic metre; a design mix can sit on either side of that, and the engineer's drawing settles which one applies.
What thickness is the slab, and how thick are the walls going up?
A 5 inch slab and a 6 inch slab, or a 9 inch wall and a thinner one, are different bag counts even on the same floor area.
Is this order by the bag or by the tonne?
Cement sells here both ways, and the basis gets fixed before the vehicle is booked.
Contact
Which stage, and how big the floor is
A 1000 sq ft figure tells us the size of the house and nothing about which of its jobs is standing in front of you today. Tell us whether it is the foundation, the walls or the roof slab, read us the thickness off the drawing if one exists, and we will count bags for that stage instead of the whole house at once. Ring +91 6202 967 218 with the stage and the basis, bag or tonne, and the count that leaves here matches the job actually underway.
Shop hours: All 7 days, 9:30 AM to 6:00 PM