A bill of quantities PDF is a snapshot of a contract document, so a good export depends on the work done before you press the button. The measured quantities, the item descriptions, the units and the revision you are issuing against all have to be right first. This guide covers what a PDF BoQ should contain, the checks to run before you issue it, and when a PDF alone is not enough. That last point matters most for contractors who need to price the bill and for public sector clients.
TL;DR
- A BoQ is a contract document under RICS NRM 2, so the PDF has to read as one: clear descriptions, units, quantities and structure.
- Treat the PDF as the issued, signed-off view. Keep the underlying data (Excel or CSV) so contractors can price and you can audit.
- Public sector clients may require accessible or open formats. GOV.UK guidance says what to do when a PDF is unavoidable.
- Run a fixed pre-export check: drawing revision, units, descriptions, provisional sums, rates and page layout.
- Name the revision and date on every issued PDF, and keep a copy of exactly what went out.
Table of Contents
- What a BoQ PDF is for
- PDF or Excel: which to issue
- What the PDF should contain
- A pre-export checklist
- Accessibility and public sector clients
- Civil engineering and other measurement rules
- Revisions, audit trail and what the PDF cannot show
- Common PDF export problems
- Getting from drawings to a PDF you can stand behind
- Where QuantiFlow fits
- Practical template: an issue note for your PDF
- FAQ
- Sources
What a BoQ PDF is for
The RICS describes NRM 2 as the standard set of measurement rules for detailed measurement of building works. A bill prepared under it lists items with descriptions and measured quantities so that tenderers can price on a common basis. It then serves as the basis for valuing work during the contract and pricing variations.
That tells you what the PDF export is. It is not a report you print for interest. It is the form in which a contract document reaches a tenderer or a client, and it will be read by people who were not in the room when you measured.
The PDF has three realistic jobs:
- Tender issue. A fixed, paginated bill that every tenderer receives in identical form.
- Client sign-off. A readable version for a client, architect or project manager to review before the bill goes out.
- Record. The version held on file as what was issued on a given date against a given drawing set.
It does one job poorly: giving contractors something to price in. Which brings us to the format question.
PDF or Excel: which to issue
A contractor pricing your bill wants to drop it into their estimating system or a spreadsheet. A PDF forces them to retype or run it through conversion, which invites transcription errors. For that reason many QSs issue both: the PDF as the controlling document, the spreadsheet as the working copy. Whichever you choose, state in the tender instructions which governs if the two ever differ.
| Recipient or purpose | Best format | Why |
|---|---|---|
| Contractor pricing the bill | Excel or CSV, plus PDF | Rates and totals can be entered and checked without retyping |
| Client or project manager review | Fixed layout, easy to mark up and comment on | |
| Contract file or record of issue | PDF, with the source data archived | Shows exactly what was issued and when |
| Public sector tender | Open, accessible format; tagged PDF only if needed | Accessibility duties apply to public bodies |
| Internal cost modelling | Excel or CSV | Quantities can be reused and compared |
The Construction Playbook, published in December 2020, sets out how the UK government expects public works to be assessed, procured and delivered. Its emphasis is on transparency and information passing smoothly between client and supply chain. Read that way, a bill that exists only as a static PDF is the weaker deliverable. It is not wrong, but it is harder to reuse.
What the PDF should contain
A tender-ready BoQ PDF is easy to follow and easy to price from. Whatever the software, check that the export includes the following.
Front matter
- Project title, address and client.
- The issue date and a revision or issue reference for the bill itself.
- The drawing register the bill was measured from, with revision letters or numbers.
- The measurement basis. For building works, say that the bill is measured in accordance with NRM 2, and note any departures.
- Preliminary notes on how to price, including what the rates must include.
Measured items
Each line needs the same columns, in the same order, on every page:
- Item reference, unique and stable, so that queries and variations can cite it.
- Description, written to the measurement rules with enough detail to price.
- Unit, in metric (m, m², m³, nr, item and so on).
- Quantity, to a sensible number of decimal places.
- Rate and amount columns, left blank for the tenderer if you are issuing for pricing.
The NRM 2 rules govern how work is divided, described and measured, including what counts as measured work and what must be stated as an item or provisional sum. Read the rules in the RICS NRM 2 document for the detail. Our own explainer on NRM2 and how it structures a bill is a shorter starting point.
Non-measurable items and risk
Software can output quantities. It cannot decide how you handle a provisional sum, a risk allowance, a design that is still developing or an item that is not measurable. Those decisions sit with the surveyor, and the PDF has to show them clearly: what is included, what is excluded, and what is left for the contractor to price as a lump sum.
Summaries and page furniture
- Collections and summaries that add up, with page totals carried forward.
- Page numbers in the form "page x of y", so a missing page is obvious.
- The bill reference and revision in the header or footer of every page.
- Landscape orientation if your columns need it, with text that stays legible when printed on A4.
A pre-export checklist
Run these checks in the same order each time. A fixed routine catches the errors that matter, and it is easy to hand to a colleague.
- Confirm the drawing revision. Check that every quantity traces back to the current issued drawings. A bill measured from a superseded revision is the most expensive mistake in this list. Our piece on linking each BoQ line to its drawing revision shows one way to keep that link visible.
- Check units and conversions. Look for mixed mm and m, m² against m³, and "nr" against "item".
- Read the descriptions as a tenderer would. Does each one say enough to price without a phone call? Are the same items described the same way throughout?
- Review provisional sums and risk items. Are they stated, justified and consistent with the preliminaries?
- Check totals and cross-references. Do section totals reach the collection, and does the collection reach the summary?
- Check for blank or zero-quantity lines. These often survive from templates.
- Look at the layout. Column widths, page breaks that split an item from its heading, and truncated descriptions.
- Name the file properly. Project code, document type, revision and date.
- Archive what you issued. Keep the PDF and the data it was generated from together.
A longer review routine, tied to standards and contract forms, is in our seven BoQ review steps for UK QSs.
Accessibility and public sector clients
If you tender for local authorities, central government, the NHS or other public bodies, the format question stops being a preference. GOV.UK guidance on publishing accessible documents says existing PDFs should be turned into HTML if they are to be viewed, or an OpenDocument if they are to be edited. It also says that if you need to keep the PDF, there are legal requirements around accessibility. Public sector bodies are subject to the Public Sector Accessibility Regulations 2018, which is why their procurement teams may ask for something other than a plain PDF.
In practice:
- Ask the client or procurement portal what format they require before you build the issue pack.
- If a PDF is requested, ask whether an accessible alternative should accompany it.
- If you must produce a PDF, make it a tagged one, with a proper heading structure and alternative text for any images. The GOV.UK guidance covers the specifics.
- A BoQ is largely a table. Make sure the table has proper header rows and a logical reading order, because that is where untagged exports fail screen reader users.
This applies to public bodies and those working for them. A private client may well be content with a standard PDF. Check; do not assume. The government's own commercial agency style guide goes further and tells its staff to avoid PDFs where possible, which gives you a feel for the direction of travel.
Civil engineering and other measurement rules
NRM 2 covers detailed measurement for building works. If you work on civil engineering, the Institution of Civil Engineers publishes the Civil Engineering Standard Method of Measurement, CESMM, which it describes as the standard for preparing bills of quantities in civil engineering work. The fourth edition appeared in 2012.
The point for exports is the same under either method. The quality of the bill comes from the measurement procedure and the clarity of the descriptions, not the file format. Your PDF should say which method was used. Do not mix conventions within one bill without stating it.
Revisions, audit trail and what the PDF cannot show
A PDF freezes a bill at a moment in time. That is useful and limiting. It cannot show how a number was reached, and it cannot tell you what changed since the last issue. When a contractor queries item 4.12 six weeks later, you need to know:
- Which drawing, at which revision, the quantity came from.
- Who measured it and who checked it.
- What changed between issue 1 and issue 2.
The practical answer is to keep the working data alongside each PDF issue and to log changes between issues. A short change summary at the front of each re-issued bill helps tenderers see what moved. If your measurement tooling keeps an audit log, export that too, or at least keep it with the issue record. Our article on making BoQs audit ready goes through the NRM 2 rules that most affect that trail.
Common PDF export problems
Truncated descriptions. Long descriptions get cut off in fixed-width cells. Widen the column, reduce font size slightly or wrap text. Never accept a truncated description in an issued bill.
Page breaks in the wrong place. A heading stranded at the foot of a page, or an item split across two. Set keep-with-next rules or insert manual breaks before exporting.
Number formatting. Thousands separators and decimals that differ between the spreadsheet and the PDF. Check the totals against the source.
Hidden rows and columns. Anything hidden in Excel may or may not appear in the PDF. Unhide everything and decide deliberately what goes out.
Scanned or image-based output. A PDF made by printing and scanning cannot be searched or read by assistive technology. Export directly from the source instead.
Rates left in. If you used internal or indicative rates while building the bill, make sure they are stripped from the version going to tenderers, unless the bill is meant to carry them.
Unreviewed machine output. Any software that drafts quantities or descriptions produces a first pass. The bill is only yours once you have reviewed and signed it off. Our note on why every automated draft needs auditing explains what to check.
Getting from drawings to a PDF you can stand behind
Most export problems start upstream. If the takeoff is untidy, the PDF will be too. A few habits that pay off:
- Fix the drawing set and revisions before measuring.
- Keep a consistent naming convention for work sections and item descriptions.
- Review as you go, not only at the end.
- Separate measured items from allowances, so they cannot be confused in the output.
- Do a final read-through of the PDF itself, not just the spreadsheet behind it.
If your bill covers mechanical and electrical work, the measurement discipline is stricter still. See our eight steps for an audit-ready MEP takeoff. For smaller domestic work, the house extension takeoff checks show how the same routine applies at a smaller scale. For ways to shorten the process without losing control, see speeding up BoQ production in nine steps.
Where QuantiFlow fits
QuantiFlow is in development. It reads construction drawings and produces a draft Bill of Quantities for a quantity surveyor to review and sign off. The judgement stays with you. If you want to see where it is heading, visit the QuantiFlow site.
Practical template: an issue note for your PDF
A short cover note on each issue prevents most disputes. Include:
- Bill title, reference and issue number.
- Date of issue.
- Drawing register with revisions used.
- Measurement standard and any departures from it.
- Which file governs: the PDF or the spreadsheet.
- A summary of changes since the last issue.
- The name of the surveyor responsible.
None of this requires special software. It requires a habit, and a clear owner for the issue.
FAQ
Is a PDF enough for a tender bill of quantities?
Sometimes, but often it is not. Tenderers usually need to price the bill in their own systems, and a PDF makes that slower and more error-prone. Issue a spreadsheet or CSV alongside the PDF, and say which one governs if they differ. For public sector work, check the client's required format first.
Does a BoQ PDF have to be accessible?
If you are working for a public sector body, accessibility rules are likely to apply, because such bodies are covered by the Public Sector Accessibility Regulations 2018. GOV.UK guidance prefers open formats and says that retained PDFs need to be accessible. For private clients there is no such default, so ask what they want.
What should I check before exporting a BoQ to PDF?
Check the drawing revisions, units, descriptions, provisional sums, totals and page layout, in that order. Then read the PDF itself rather than the spreadsheet behind it, since layout problems only show up there. Finally, archive the PDF with its source data so the issue can be reconstructed later.
Which measurement standard should the PDF state?
For detailed measurement of building works in the UK, that is normally NRM 2 from the RICS. For civil engineering work, it is typically CESMM. State the method on the front page, along with any departures.
Sources
- RICS: NRM 2, Detailed measurement for building works (PDF)
- RICS: NRM, New Rules of Measurement
- GOV.UK: Publishing accessible documents
- GOV.UK: The Construction Playbook
- Government Commercial Agency: Writing accessible content
- ICE: Civil Engineering Standard Measurement
Recommended
- Automated BoQ Generation to Cut Tender Risk With Human Sign Off
- Which bill of quantities format should you use?
- Preambles in a BoQ: rules, risks and drafting guidance
- Types of bills of quantities: a UK professional's guide
This article is for general information only and is not professional, legal or commercial advice. Quantity surveying decisions should be taken by a qualified professional with reference to the specific project, drawings and contract in question. Content is produced with AI assistance and reviewed before publication. QuantiFlow Ltd accepts no liability for reliance on it.