| Sr No. | One Way Slab | Two Way Slab |
| 1 | The one way slab is supported by a beam on two opposite side only. | The two way slab is supported by the beam on all four sides. |
| 2 | In one way slab, the load is carried in one direction perpendicular to the supporting beam. | In two way slab, the load is carried in both directions. |
| 3 | One way slab two opposite side support beam /wall | Two Way Slab four side mins all side supported beam /wall |
| 4 | One way slab is bend only in one spanning side direction while load transfer | Two way slab is bend both spanning side direction while load transfer |
| 5 | One way slab is bend only in one spanning side direction while load transfer | In two-way slab, the crank is provided in four directions. |
| 6 | If L/b the ratio is greater than or equal 2 or then it is considered a one-way slab. | If L/b the ratio is less than 2 then it is considered a two-way slab. |
| 7 | In one-way slab, the load is carried in one direction perpendicular to the supporting beam. | In two-way slab, the load is carried in both directions. |
| 8 | The deflected shape of the one-way slab is cylindrical. | Whereas the deflected shape of the two-way slab is a dish or saucer-like shape. |
| 9 | Chajja and Varandha are practical examples of one-way slab. | Whereas two-way slabs are used in constructive floors of the Multistorey building. |
| 10 | In one-way slab quantity of steel is less. | In two-way slab quantity of steel is more as compared to the one-way slab. |
| 11 | Main Reinforcement is in provide short span due to banding. | Main Reinforcement is in provide short span due to banding |
| 12 | Ly/Lx ≥ 2 one way slab spanning. | Ly/Lx < 2 two way slab spanning |
| 13 | One way slab near about 100mm to 150mm based on the deflection. | two way slabs is in the range of 100mm to 200mm depending upon |
| 14 | one way slab economical near about 3.5 m. | Two way slab may economical for the panel sizes near about 6m x 6m. |
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