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TMT needed for a 1000 sq ft slab
Shyam Steel's own published chart puts TMT for a two storeyed house at 28.23 to 35.39 kilograms per square metre of built up area, non seismic ground to seismic Zone V, which is roughly 2,620 to 3,290 kilograms of sariya for one floor of a 1000 square foot house, columns, beams and slab together. The slab on its own holds steady at about 1,320 kilograms on the same chart, whichever zone the site sits in.
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Jay Shree Infra keeps ten diameters of sariya at its Saharsa godown, 5.5 mm to 32 mm, in SAIL, Tata Tiscon, Shyam Steel and four more names, and a buyer standing at the counter with a 1000 square foot plan wants one number before a mason is even booked. Not every diameter is in every brand on a given day. The range above is a planning figure and not a bar count: it comes from one manufacturer's own published chart for a two floor house, and the real order comes off the structural drawing once one exists.
Seismic detailing is what moves the range, not the slab. Shyam Steel's own chart puts more steel into the columns and the beams as the zone climbs, from 2.93 kilograms per square metre in a column on non seismic ground to 6.57 in Zone V, while the slab sitting on top of them holds at 14.21 kilograms per square metre in every zone the chart lists. A house on quiet ground and a house in a harder zone take the same slab and different columns underneath it.
The numbers
One manufacturer's chart, read zone by zone
TMT in a two storeyed house's columns, beams and slab, in kilograms per square metre of built up area, as Shyam Steel's own chart publishes it, worked out to kilograms for 1000 square feet of one floor.
Scroll the table sideways to see every column
| Seismic zone | Columnskg/sqm | Beamskg/sqm | Slabkg/sqm | Totalkg/sqm | For 1000 sq ftkg, one floor |
|---|---|---|---|---|---|
| Non seismic | 2.93 | 11.09 | 14.21 | 28.23 | 2623 |
| Zone II | 3.58 | 11.09 | 14.21 | 28.88 | 2683 |
| Zone III | 4.46 | 11.24 | 14.21 | 29.91 | 2779 |
| Zone IV | 5.19 | 14.28 | 14.21 | 33.68 | 3129 |
| Zone V | 6.57 | 14.61 | 14.21 | 35.39 | 3288 |
Every kilogram per square metre figure above is Shyam Steel's own, published for a two storeyed house on its own site. The last column is arithmetic on that figure: 1000 square feet is 92.9 square metres, so the total is multiplied by 92.9 and rounded to the nearest kilogram. The slab row holds at 14.21 kilograms per square metre in every zone because seismic detailing changes how a column and a beam are tied and confined, not how the slab itself is designed for bending.
Read the table as a planning figure for a house still on paper, not a delivery note. Once your engineer's structural drawing exists, its own bar bending schedule is the real count, and it is very often a different one from anything on this chart.
Shyam Steel publishes a separate rule of thumb for the concrete side of the same house: residential construction runs about 85 kilograms of steel for every cubic metre of concrete against 130 for heavy industrial work, and the trade's own shorthand for the ratio is 100 kilograms of steel for every 130 kilograms of concrete. That figure moves with 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.
At this counter
Ordering sariya for a house on this scale
Bring the structural drawing if one exists and we work off its own bar bending schedule, size by size. Where no drawing exists yet, tell us the floor count and we will talk inside the same range as the chart above, and settle the real figure once the engineer's numbers land. Our first pick for a house like this is SAIL TMT, and the full set of diameters and grades we keep on the TMT bar (sariya) rack is on its own page.
Sariya sells here per piece and by weight both, and which basis applies to a size moves with the grade and the brand, so it is settled on the call before the rate. Once the diameter and the count are fixed, the weight chart turns that count into kilograms, and a weighbridge ticket is what a load on weight is actually billed against.
The limit
What a chart like this leaves out
A thumb rule figure carries no lap length. Where two bars overlap at a joint, where a bar bends round a corner, and the binding wire and chairs that hold a cage in shape before the pour, all draw more steel than the bare bending figure a chart like this represents. A bar bending schedule counts all of it; a planning chart never does.
IS 1786's own batch tolerance sits on top of whatever count a drawing settles on, a few percent either way depending on the diameter, and the sariya weight chart covers that ground in full. None of it changes what decides the real number for one house: the structural drawing, read size by size, not a floor area typed into a chart.
Sources
One manufacturer's own published estimation charts
Two pages on Shyam Steel's own site, whose TMT stands on our floor alongside SAIL and Tata Tiscon.
Questions
1000 sq ft ke sariya ke sawal
1000 sq ft ke ghar me kitna sariya lagega?
Roughly 2,620 to 3,290 kilograms for one floor's columns, beams and slab together, the range Shyam Steel's own published chart gives for a two storeyed house, non seismic ground to Zone V. The slab alone holds close to 1,320 kilograms whichever zone the site sits in. Ring +91 6202 967 218 once a structural drawing exists and we work off its bar bending schedule instead of this range.
Seismic zone se sariya ki matra kaise badalti hai?
It moves the columns and the beams, not the slab. On the same chart a column climbs from 2.93 kilograms per square metre on non seismic ground to 6.57 in Zone V, while the slab above it holds at 14.21 kilograms per square metre in every zone. Ask your engineer which zone your site falls in before you plan a load around any single row.
Ghar ke liye sariya ka asli hisab kaun karega?
The structural engineer who draws the house, through a bar bending schedule that counts every bar by size, length and bend. This chart is a planning figure for before that drawing exists. Once it does, its own count replaces this one.
1000 sq ft ke order ka basis piece hoga ya kilo?
Either, and it is settled on the call rather than assumed. Which basis applies to a size moves with the grade and the brand, so ask before the rate is fixed, and the weight chart turns whatever count your drawing gives into kilograms once the diameter is known.
Naksha bane bina bhi sariya order kiya ja sakta hai kya?
For early planning yes, using a range like the one above. For the actual load, no. Tell us the floor count and we quote inside that range, and the moment a structural drawing exists we switch to its own bar bending schedule for the real count.
Before you order
What pulls your house to one end of this range
Each one moves the number away from the published chart and toward this particular house.
Is the house one floor or two?
The chart above is published for a two storeyed house. A single floor on the same plan usually takes less steel in the columns, and we will say so on the call.
Does your engineer know the site's seismic zone?
It decides which row of the chart sits closest to your house, and only a structural drawing settles it for certain.
Is there a structural drawing or a bar bending schedule yet?
Read us the sizes and the counts off it and we quote against that instead of a floor area.
Will the order go by piece or by weight?
Sariya sells both ways here, and the basis is fixed before the rate, not after the vehicle is loaded.
Contact
The bar bending schedule is the number that counts
A floor area tells us roughly what scale of order a house sits at before any drawing exists, and nothing more precise than that. Bring the structural drawing once your engineer has it and we quote size by size off its own bar bending schedule. Until then, ring +91 6202 967 218 with the floor count and we will work inside the range above and settle the diameter, the grade and today's rate on the same call.
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