A material take-off (MTO) lists every material needed to build a project, measured from the drawings: cubic metres of concrete, square metres of brickwork, lengths of timber, numbers of doors. Every price, order and programme builds on it, so a mistake at take-off flows straight through to the tender and the site.
This article combines our earlier guides on why accurate take-offs matter and how construction take-off works, with our five most useful tips.
Why take-off accuracy matters
- Tender pricing: under-measure and you lose money; over-measure and you lose the job.
- Ordering: correct quantities mean fewer emergency deliveries, short-load fees and skip bins full of surplus.
- Programme: materials arrive when they’re needed.
- Variations: a traceable take-off makes it easy to show what changed.
How a construction take-off is done
- Collect the documents: current drawings, specification, schedules and the engineer’s details.
- Check the scale on every sheet against a known dimension.
- Set up the structure: by trade or element, with consistent units and cost codes.
- Measure: lengths, areas, volumes and counts, on screen.
- Apply allowances: laps, cutting waste and order units.
- Check and report: an independent check, then issue in a format that suits pricing and ordering.
Take-off vs quantity take-off? See material take-off vs quantity take-off.
5 tips to improve take-off accuracy
1. Control drawing revisions and scale
Measure only from the latest issued revision, and record the revision against every quantity. Calibrate the scale on every sheet. Mixed scales on one PDF are a classic source of error.
2. Break the job into logical sections
Measure by level, zone or element, and by trade, using the same rules every time (net vs gross, how openings are deducted). Consistent rules make the take-off easy to check and easy to update.
3. Use digital tools, but understand them
On-screen take-off tools such as Bluebeam Revu, and Kubla Cubed for earthworks, are faster and more traceable than paper. Make sure everyone uses the same templates and colour conventions.
4. Convert quantities into order quantities
Net quantities aren’t what you order. Add realistic waste and round up to how materials are actually sold. For example:
- concrete in 0.2 m³ increments, watching minimum loads (our concrete calculator does this);
- bricks by the pack, with allowance for cuts and breakages (brickwork calculator);
- tiles by the box, with more waste for diagonal or herringbone layouts (tile calculator);
- paint by the tin size (paint calculator).
5. Check it independently
A second person checks the high-value items and reconciles totals: floor areas against finishes, wall lengths against footings, door counts against the schedule.
Common take-off mistakes
- Measuring from superseded drawings.
- Missing items that appear only in the specification or the engineer’s notes.
- Double-counting at junctions and corners.
- Forgetting laps (mesh, membranes) or waste.
- Not deducting openings, or deducting them twice.
Frequently asked questions
How accurate should a material take-off be?
Net quantities from complete drawings should be very close to the true figure. Most of the uncertainty is in waste allowances and design changes, which is why they are shown separately.
Should I outsource take-offs?
If you are tendering more work than your team can measure carefully, yes. A rushed take-off is the most expensive kind. See estimating services vs DIY estimating.
Need an accurate take-off for a Perth or WA project? Call Measure Manage on 0498 202 445 or see our material take-off services.