Column & Beam Designer

1 · Column grid & spacing▾

Project / house name

Columns along Length (X)grid lines, min 2

Columns along Width (Y)grid lines, min 2

Fill in the spacing (ft) between each pair of column lines on the diagram below — this is your "column spacing". Tap a column node to switch it OFF if your house doesn't have a column there (e.g. an L-shaped plot, verandah cut-out); its beams are removed too. The app builds the full column & beam list from this automatically.

2 · Storeys & storey height▾

Building

Floor-to-floor heightplinth to roof beam of each storey

Parapet wall heighton terrace/top roof beam

3 · Materials & grades▾

Concrete grade

Main steel (col/beam long. bars)

Stirrup / tie steel

4 · Slab, finish & live load▾

Slab thickness

Floor finish load

kN/m²

Live load — floors

kN/m²

Live load — terrace/roof

kN/m²

IS 875 Part 2: residential floor 2.0 kN/m² typical, accessible roof 1.5 kN/m². Adjust for your locality/usage.

5 · Wall load on beams▾

Beams carry wall load

Wall thickness

Assumes every beam carries one storey height of brick wall (19 kN/m³); the terrace/top beam carries only the parapet height instead. Turn off if your layout has open/partition-free bays.

Preliminary / thumb-rule tool. Uses tributary-area load estimation + IS 456 simplified continuous-beam coefficients — a fast, code-aware sizing aid for a basic G+3 house, not a substitute for a full structural analysis by a licensed structural engineer, especially for irregular layouts, heavy loads, or seismic zones III–V.

Column & Beam Design Report

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