Column and beam size for G+0, G+1, G+2, G+3 and G+4 building | Column and beam size for G+0 building | Column and beam size for G+1 building | Column and beam size for G+2 building | Column and beam size for G+3 building | Column and beam size for G+4 building.

Actual size of column and beam in residential house is decided according to design structure by architectural engineer, it’s depends on all type of load acting on a structure, length of span between two support, how tall is building, whether it is a public building, Hospital a school or residential building.

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In this article we know about average size of column and beam required for any residential building containing 1st floor, 2nd floor, 3rd floor, 4th floor and 5th floor by using thumb rule.

Strength of a structure depending on the type of Steel grade used, type of grade of concrete, diameter of Steel used and alignment of column. We can reduce the size of a structure by providing higher grade of concrete with higher grade of Steel.

**Column and beam size for G+0 building**

Column and beam size for G+0/ ground floor/1st floor building:- For this general thumb rule, normal residential building, span upto 3 to 5m, we will assume a structure of G+0/ ground/1st floor building, using standard 5″ walls, size of a RCC column and beam for G+0 building should be minimum 9”x 9” (230mm x 230mm), It will provided with minimum 4 bars of 12mm of Fe500 Steel with m20 grade of concrete and stirrups of [email protected]″C/C.

**Column and beam size for G+1 building**

Column and beam size for G+1/ two floor/ 2 storey building:- For this general thumb rule, normal residential building, span upto 3 to 5m, we will assume a structure of G+1/ 2 storey/2nd floor building, using standard 5″ walls, size of a RCC column and beam for G+1 building should be minimum 9”x 12” (230mm x 300mm), It will provided with minimum 6 bars of 12mm of Fe500 Steel with m20 grade of concrete and stirrups of [email protected]″C/C.

**Column and beam size for G+2 building**

Column and beam size for G+2/ three floor/ 3 storey building:- For this general thumb rule, normal residential building, span upto 3 to 5m, we will assume a structure of G+2/ 3 storey/ third floor building, using standard 5″ walls, size of a RCC column and beam for G+2 building should be minimum 12”x 12” (300mm x 300mm), It will provided with minimum 6 bars contain combination of 16mm & 12mm of Fe500 Steel with m20 grade of concrete and stirrups of [email protected]″C/C.

**Column and beam size for G+3 building**

Column and beam size for G+3/ four floor/ 4 storey building:- For this general thumb rule, normal residential building, span upto 3 to 5m, we will assume a structure of G+3/ 4 storey/ four floor building, using standard 5″ walls, size of a RCC column and beam for G+2 building should be minimum 12”x 15” (300mm x 380mm), It will provided with minimum 8 bars contain combination of 16mm & 12mm of Fe500 Steel with m20 grade of concrete and stirrups of [email protected]″C/C.

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**Column and beam size for G+4 building**

Column and beam size for G+4/ five floor/ 4 storey building:- For this general thumb rule, normal residential building, span upto 3 to 5m, we will assume a structure of G+4/ 5 storey/ five floor building, using standard 5″ walls, size of a RCC column and beam for G+2 building should be minimum 12”x 18” (300mm x 450mm), It will provided with minimum 8 bars contain combination of 16mm, 20mm & 12mm of Fe500 Steel with m20 grade of concrete and stirrups of [email protected]″C/C.