
(1) One-Ways Slabs
Following are some of the important Factors and criteria regarding One-Way Slabs:
- Length to Width ratio of the slab should be equal or more than 2 (L/W >= 2)
- Load Transfer in One direction (in short direction)
- Beams are provided in one direction (along the length)
- Main-Bars are provide in short direction because it is the load carrying rebars while the Temperature/Distribution Bars is used in long direction to just cater the unwanted stresses due to temperature or shrinkage.

(2) Two-Way Slabs
Following are some of the important Factors and criteria regarding One-Way Slabs:
- Length to Width ratio of the slab should be less than 2 (L/W < 2)
- Load Transfer in both direction ( That’s why its called Two-Way Slab)
- Beams are provided in both direction.
- Main-Bars are provide in both direction because loads are transfer in both direction due to it geometry.
