What is quantity takeoff in construction?

Quantity takeoff (QTO) is the process of measuring materials and labour from a drawing — counting linear metres of pipe, square metres of cladding, number of outlets — so you can price a job. Estimating is the next step: attaching rates to those quantities to produce a quote. Traditionally these are done in a separate takeoff tool or a spreadsheet, disconnected from the drawing, which means every design change is re-measured by hand.

Can Diaz Editor do quantity takeoff?

Diaz Editor produces a bill of materials (BOM) directly from the model you draw. Because walls, pipes, ducts, panels and components are real objects on discipline layers, their quantities — lengths, areas, counts — are read from the geometry, not measured by hand. Export the BOM as CSV, or a client-ready PDF that combines the drawing, the schedule and a signable quote. When you change the design, the quantities update with it.

Is Diaz Editor a replacement for PlanSwift, CostX or Bluebeam?

No — and this is the honest part. PlanSwift, CostX and Bluebeam Revu are dedicated takeoff suites: they measure off supplied PDF/DWG drawings you did not draw, with assembly databases, labour libraries and live supplier pricing. If your work is bidding large tenders off other people's drawings, those tools are stronger. Diaz Editor's estimating is model-based: it shines when you draw the job yourself and want the takeoff to fall out of the drawing at €99 one-time, not when you need a full commercial-estimating back-office.

Does the takeoff include labour and pricing, or only materials?

The BOM gives you quantities and material lines. You add labour lines and rates per trade, and the correct VAT/GST per line based on your country setting, to build the quote. There is no built-in national labour-rate database or live wholesaler price feed — you bring your own rates or import a supplier list. It is a fast quoting workflow for a small contractor, not an automated commercial-estimating engine.

How is model-based takeoff faster than a spreadsheet?

With a spreadsheet you measure the drawing by hand, type quantities into cells, and re-measure everything when the client changes a dimension. With model-based takeoff the quantities come from the geometry, so a dimension change re-flows the BOM automatically. For a contractor running 8-20 quotes a month, the saving is largest on revisions — the part spreadsheets punish hardest.

Construction estimating & quantity takeoff from CAD (2026 guide)

Most small contractors price jobs twice: once when they draw them, and again when they re-measure the drawing into a spreadsheet or a takeoff tool. Every revision means measuring again. This guide is about closing that gap — getting the quantity takeoff to fall out of the drawing you already made, so a design change updates the quote instead of restarting it.

It also draws an honest line: where a model-based BOM (like Diaz Editor's, €99 lifetime) is the faster tool, and where a dedicated takeoff suite (PlanSwift, CostX, Bluebeam Revu) is the right one instead. Pick the wrong side of that line and you either overpay for a back-office you don't need, or fight a drawing tool to do bid-takeoff it was never built for.

1. Takeoff vs estimating — two steps people blur together

Quantity takeoff (QTO) is measurement: how many linear metres of pipe, square metres of cladding, cubic metres of concrete, or counts of outlets a job contains. Estimating is what comes next: attaching material and labour rates to those quantities, adding VAT/GST and margin, and producing a priced quote. The two get blurred because on a small job one person does both in an afternoon — but they fail in different ways. Takeoff fails on accuracy (a missed run, a wrong scale). Estimating fails on stale rates and forgotten labour lines.

2. Why the spreadsheet + separate-drawing method leaks time

The common small-contractor stack is a drawing tool for the picture and a spreadsheet for the numbers, with a manual measuring step in between. That middle step is where time and money leak:

Double entry: you draw a wall, then type its length into a cell. Two sources of truth that drift apart the moment either changes.
Revision tax: the client moves a wall 40 cm and you re-measure and re-type every affected quantity. This is the single biggest time sink in quoting.
Silent omissions: a run that's on the drawing but never made it into the sheet. You find it on site, at your own cost.
No audit trail: when the client queries a number, you can't point at the geometry it came from.

3. Model-based takeoff — quantities that come from the geometry

In Diaz Editor the drawing is the source of the numbers. Walls, pipes (leiding), ducts, panels, radiators and components are real objects on discipline layers, so their lengths, areas and counts are read from the geometry rather than measured by hand. The bill of materials is a view of the model, not a separate document you maintain.

The practical payoff shows up on the second version of every quote. Change a dimension and the BOM re-flows with it — no re-measuring, no re-typing. Export the BOM as CSV for your own sheet, or a client-ready PDF that combines the drawing, the schedule and a signable quote in one pack. Try the free construction calculator for a rough first number before you install anything.

4. The honest line — model-based BOM vs a dedicated takeoff suite

This is where most "estimating software" pages oversell. Diaz Editor is not a commercial-estimating back-office, and pretending otherwise would waste your time. Here is the real split:

Model-based takeoff (Diaz Editor) fits when you draw the job yourself — renovations, extensions, installs, fit-outs — and want the quantities to fall out of that drawing. One tool, €99 once, quote and drawing stay in sync.

A dedicated takeoff suite fits when you bid off other people's drawings: measuring quantities from a supplied PDF or DWG tender set you didn't draw, with assembly databases, labour libraries and live supplier pricing. That's PlanSwift, CostX, or Bluebeam Revu territory — more power, more cost, more setup.

5. The options compared

Tool	Price	Takeoff from	Draws the job?	Labour DB / price feed
Spreadsheet + generic CAD	varies	manual measure	separate tool	you build it
PlanSwift	~$1,749 + /yr	supplied PDF/DWG	❌ (measure only)	✅ assemblies
Bluebeam Revu	~$260/yr	supplied PDF	❌ (PDF markup)	basic
CostX	quote (enterprise)	PDF/DWG/BIM	❌ (measure only)	✅ full
Diaz Editor	€99 once	your own model	✅ draw + BOM	bring your own rates

Read the table honestly: the dedicated suites win on measuring supplied tender drawings and on built-in cost databases. Diaz Editor wins when you draw the work yourself and want takeoff + quote + drawing in one €99 tool with no subscription. Different jobs, not "better/worse".

6. Workflow — from drawn job to priced quote

Step 1 — Draw the job (you were doing this anyway). Floor plan, extension, or install on discipline layers. Import the architect's DXF as an underlay if there is one.

Step 2 — Read the BOM. Open the bill of materials: quantities per layer come from the geometry — cladding area, pipe runs in linear metres, outlet counts, panel counts.

Step 3 — Add labour + rates. Split into material and labour lines per trade, apply your rates and the correct VAT/GST per line for your country. Import a supplier list to auto-fill material prices if you keep one.

Step 4 — Export the quote pack. One PDF with the drawing, the schedule and a signable quote. Client asks for a change? Adjust the drawing, regenerate — the quantities re-flow.

7. Where model-based takeoff is more accurate (and where it isn't)

More accurate: anything derived from geometry you control — areas, lengths, counts — because there's no manual re-measuring step to get wrong, and revisions can't silently desync the numbers from the drawing.

Not a substitute for judgement: waste factors, cutting allowances, access difficulty, and site conditions are yours to add. And Diaz Editor draws layouts and lists — it is not a structural, heat-loss or energy-compliance calculator. Those numbers stay in the jurisdiction-specific software your sign-off requires.

8. When Diaz Editor is the right estimating tool — and when it isn't

Good fit:

Solo and small-team contractors and installers (1-25 people) who draw their own jobs
Renovations, extensions, fit-outs, trade installs — residential + light commercial
Wanting quote + drawing + BOM in one tool, one-time price, no subscription
Quoting volume where revisions eat your evenings

Not the right fit — use a dedicated suite:

Bidding large tenders off supplied PDF/DWG drawings you didn't draw (PlanSwift, CostX)
Needing built-in national labour-rate databases + live supplier price feeds
PDF-markup takeoff across big document sets (Bluebeam Revu)
Full commercial-estimating back-office with tender workflow

Draw once, quote from it

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