Does the tool suggest unit rates?

No. Unit rates are entered by you from your own supplier quotations or historical data; the tool only multiplies and totals.

Are the line items a standard method of measurement?

No. They are common electrical package headings offered as a starting layout, not a claim of compliance with any measurement standard.

How do cable quantities relate to the cable calculators?

Size each run with the Cable Sizing and Voltage Drop calculators, then enter the resulting lengths per size as quantities here.

Is this calculator free?

No. The BOQ builders belong to the paid Professional level; the free calculators remain open to everyone.

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Electrical BOQ Builder — Priced Bill of Quantities

Build electrical bills of quantities.

This calculator is part of a paid level

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This builder lays out the typical electrical items of a building package and prices each line as quantity × unit rate, then sums the schedule. Every quantity and every rate is yours: the tool carries no price list, no market rate and no standard item library beyond the line headings you can overwrite.

Method and assumptions

amount_i = quantity_i × rate_i
subtotal = Σ amount_i
after preliminaries = subtotal × (1 + preliminaries%)
after overhead & profit = after preliminaries × (1 + OH&P%)
total = after overhead & profit × (1 + contingency%)

Quantities and unit rates are entirely user-entered from the project's own take-off and quotations; the tool assumes no market price.
Preliminaries, overhead & profit and contingency percentages are applied cumulatively on the subtotal, matching standard BOQ collection-page practice.
A preliminary decision-support estimate: the result does not replace an approved design calculation or review by a competent authority.

Frequently asked questions

Does the tool suggest unit rates?: No. Unit rates are entered by you from your own supplier quotations or historical data; the tool only multiplies and totals.
Are the line items a standard method of measurement?: No. They are common electrical package headings offered as a starting layout, not a claim of compliance with any measurement standard.
How do cable quantities relate to the cable calculators?: Size each run with the Cable Sizing and Voltage Drop calculators, then enter the resulting lengths per size as quantities here.
Is this calculator free?: No. The BOQ builders belong to the paid Professional level; the free calculators remain open to everyone.

Next step and related links

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Useful links

Free calculators are open to everyone, and CSV export is free for everyone too. Project saving and PDF/Excel reports come with Professional, and integrated workflows with Premium.