Column and Beam Cost Calculator (Concrete and Steel)
Works out the concrete volume of columns or beams from the count, length, width and depth, then adds the concrete and steel-plus-labour costs.
Enter your numbers
Example: 4
Example: 3
Example: 0.25
Example: 0.3
Example: 9000
Example: 4700
Recent
Formula
How the calculation works
The tool multiplies the count by the length, width and depth of one member to get the concrete volume.
It multiplies that volume by the concrete rate to get the concrete cost of the whole set.
It multiplies the same volume by the steel-and-labour rate and adds it to the concrete cost for the total.
Common mistakes
- Forgetting the steel and labour rate, which together often cost more than the concrete itself in a frame.
- Measuring only the clear height of a column instead of its full length including the beam junctions, which undercounts the volume.
When to use it
- Estimate the frame bill for a set of columns before the steel is cut and the concrete is ordered.
- Compare two steel-and-labour rates to see how much of the frame cost is labour and how much is material.
Worked example
Four members 3 metres long, 0.25 metres wide and 0.3 metres deep give 0.9 cubic metres, costing 8100 taka of concrete and 4230 taka of steel and labour, a total of 12330 taka.
Common questions
Why are steel and labour shown as one rate?
Both are normally quoted to a household as a single rate per cubic metre, so they are combined here to keep the estimate simple.
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