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Construction3 min read

How to Read a BOQ Before You Sign With a Contractor

A Bill of Quantities is the most useful document in a construction contract and the least read. Here is what homeowners should check before agreeing to a rate.

Ar. Ahsan Raza Khokhar

Founder & Principal Architect · September 12, 2026

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Spreadsheet of quantities beside a calculator

Most homeowners in Pakistan sign a construction contract after comparing one number: the total. The Bill of Quantities, or BOQ, that sits behind that number is often skimmed or never opened. That is where the real contract is.

A BOQ breaks the building down into measurable items: excavation in cubic feet, brickwork in cubic feet, plaster in square feet, steel in kilograms, and so on. Each item has a quantity, a unit and a rate. Multiply them and you get the contract sum. When the building changes, or when the contractor claims payment, the BOQ is what everyone refers back to.

Why the BOQ Matters More Than the Total

Two contractors can quote the same total with very different BOQs. One may have measured everything and priced it fairly. The other may have left items out, under-measured quantities, or bundled items together so they are impossible to check. The second contractor will recover the difference later through variations and "extra work" claims.

We see this pattern often: the lowest tender becomes the most expensive project because the BOQ was incomplete from the start. Our article on cost planning for construction explains how budgets fail in the same way.

Five Things to Check in Any BOQ

  1. Is every item measurable? Lines like "complete plumbing work, lump sum" hide scope. Ask for the items and quantities behind them.
  2. Do quantities match the drawings? A quick check of a few big items, such as brickwork, concrete and plaster, will tell you whether the contractor measured from drawings or estimated.
  3. Are specifications stated? "Tiles" is not a specification. Size, grade, brand or a price allowance should be written against the item.
  4. What is excluded? Boundary walls, water tanks, electrical fixtures and external works are common exclusions. They are not free because they are missing.
  5. Are provisional sums reasonable? Where final choices are not made, a provisional sum sets aside money. Unrealistically low allowances make the tender look cheap and guarantee overruns.
Quantities being entered into a spreadsheet
Quantities being entered into a spreadsheet

Who Should Prepare the BOQ

Ideally the BOQ is prepared on the client's side, by the architect or a quantity surveyor, from complete working drawings. Contractors then price the same BOQ, which makes tenders directly comparable. When each contractor writes their own BOQ, you are comparing different documents, not different prices.

If you want to understand the process from the professional side, Ofivio has a clear walkthrough on how to prepare a BOQ for a construction project. For practices that prepare BOQs regularly, dedicated BOQ software keeps quantities linked to drawings and revisions instead of living in a spreadsheet that drifts out of date.

Rates Are Only Half the Story

Homeowners often focus on the rate per unit. Rates matter, but quantities matter as much. A fair rate on an under-measured quantity is still an underpriced item. A slightly higher rate on an accurate quantity is usually the safer contract.

Check also how the BOQ handles rate changes. Material prices in Pakistan move quickly, particularly steel and cement. A contract should state whether rates are fixed, and if not, how price adjustments will be calculated and documented.

Using the BOQ During Construction

A good BOQ does not stop being useful after signing. It becomes the basis for:

  • Interim payments: Each payment should be measured against BOQ items actually completed.
  • Variations: Changes are priced using BOQ rates where possible, which avoids arguments about new rates.
  • Final account: At the end, measured quantities are reconciled against the BOQ to settle the final amount.

This is why quantity surveying is a discipline of its own. Tools built for planning and QS work track measured quantities against the contract BOQ across the whole project, so the final account is not a surprise.

Conclusion

Do not sign on a total. Ask for the BOQ, check that it is complete and measurable, and make sure it was prepared from drawings. If you would like our team to review a contractor's BOQ or prepare one for your project, request a quote and tell us where you are in the process.

BOQbill of quantitiescontractor ratesconstruction cost Pakistanquantity surveyingtender
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