Bar Bending Schedule (BBS) Calculator is a very dynamic tool. In this tool you can create all type of BBS shapes and able to generate the detailed estimate of Bar bending schedule side by side.
Being a civil engineer it is very important to calculate the Steel weight because it provide very adequate and proper estimate of steel quantity and Cost. You can use this tool free of cost and it will give you all Bar bending schedule calculations in few seconds.
Note: This tool is very confidential and no any website can use this tool on there website or for any video.
BAR BENDING SCHEDULE
IS 2502 : 1963 | Quantity Estimation Tool | 96 Shapes
IS 2502 : 1963
IS 1786 : 2008
SP 34
IS 456 : 2000
96 SHAPES
How to Use
- Type a Shape Code (e.g.
00,40,A2) — diagram and formula load instantly. Click the diagram to view full size. - Enter Dia (mm), No. Bars, No. Sets, and dimensions A–E (in mm). Cut length and weight calculate automatically.
- Shape codes: 00–99 (standard) · A1–A9 · B1–B5 · C1–C9 · D1–D9 · E1–E2. See Shape Library tab for all 96 shapes with diagrams.
- All weights per IS 1786:2008: W = 0.00617 × d² (kg/m). Cut lengths per IS 2502:1963.
| # | SHAPE | SHAPE CODE | SHAPE NAME | MEMBER | BAR MARK | DIA (mm) |
BARS | SETS | A | B | C | D | E | EXTRA | CUT LEN (mm) [calc] |
TOTAL LEN (m) [calc] |
UNIT WT (kg/m) |
TOTAL WT (kg) [calc] |
REMARKS | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Preview | ★ Enter here | Auto lookup | d | n | s | A(mm) | B(mm) | C(mm) | D(mm) | E(mm) | add(mm) | auto | auto | auto | auto | |||||
| GRAND TOTAL | — | — | ||||||||||||||||||
Weight Summary
Total Weight
—kg
Total Weight (MT)
—MT
Total Bars
—
Total Length
—m
Diameter-wise Weight (IS 1786)
| Dia (mm) | Unit Wt (kg/m) | Bars | Total Len (m) | Total Wt (kg) | % |
|---|---|---|---|---|---|
| GRAND TOTAL | — | — | |||
Member-wise Weight
| Member / Zone | Bars | Total Len (m) | Total Wt (kg) | % |
|---|---|---|---|---|
| TOTAL | — | — | — |
Shape-wise Weight
| Code | Shape Name | Bars | Total Wt (kg) | % |
|---|
Diameter Weight Distribution
Shape Library — 96 IS 2502 Shapes
IS 2502 Quick Reference
Hook Allowances (IS 2502 Cl. 6 & 7)
| Hook Type | Angle | Addition | Min Tail |
|---|---|---|---|
| Semi-circular hook | 180° | + 11d per end | ≥ 4d |
| Right-angle hook | 90° | + 3d per end | ≥ 12d |
| Stirrup / link hook | 135° | + 4d per end | ≥ 6d |
Bend Deductions (per bend point)
| Bend Angle | Deduction | Notes |
|---|---|---|
| 45° | 1d | Per bend |
| 90° | 2d | Per bend |
| 135° | 3d | Per bend |
Unit Weight Reference (IS 1786 : 2008)
| Dia (mm) | Area (mm²) | W (kg/m) | 12m bar (kg) | Grade |
|---|
Lapping & Development Lengths (IS 456)
| Condition | Min Lap Length |
|---|---|
| Tension laps (general) | 40d |
| Compression laps | 24d |
| Fe415 tension development | 47d (M20) |
| Fe500 tension development | 55d (M20) |
| Minimum lap length | 300 mm |
| Nominal cover (slab) | 20 mm |
| Nominal cover (beam/col) | 25–40 mm |
Standard Bar Spacings
| Dia (mm) | Slab (mm c/c) | Beam (mm c/c) |
|---|---|---|
| 8 | 100–200 | 75–150 |
| 10 | 125–250 | 100–175 |
| 12 | 150–300 | 100–200 |
| 16 | 200–400 | 125–250 |
| 20 | 250–500 | 150–300 |
| 25 | — | 150–300 |
Cover to Reinforcement (IS 456)
| Member | Mild Exposure | Moderate | Severe |
|---|---|---|---|
| Footings | 50mm | 50mm | 50mm |
| Columns | 40mm | 40mm | 50mm |
| Beams | 25mm | 30mm | 40mm |
| Slabs | 20mm | 25mm | 35mm |
| Retaining walls | 40mm | 40mm | 50mm |
