What is the minimum thickness for a residential slab?
John Peck
Published May 17, 2026
Similarly, it is asked, what is the minimum thickness of slab?
1.3 Minimum thickness of Slab on the ground UBC recommends minimum thickness of Concrete floor slabs supported directly on the ground to be 89mm, whereas BCGBC4010A – Apply structural principles to residential low-rise constructions determined minimum thickness to be 100mm.
One may also ask, how do you calculate the thickness of a concrete slab? How to calculate concrete:
- Determine how thick you want the concrete.
- Measure the length and width that you'd like to cover.
- Multiply the length by the width to determine square footage.
- Convert the thickness from inches to feet.
- Multiply the thickness in feet by the square footage to determine cubic feet.
Simply so, what is the minimum depth of two way slab?
125 mm.
What is the minimum thickness of RCC slab?
Minimum thickness of slab is restricted to 4 times the nominal size of aggregate. For example , in 20mm nominal size aggregate is used in concrete , the minimum thickness is limited to 80 mm. Cl 5.3. 3 of IS 456:2000.