Not long ago, an estimate meant printed drawings, a scale ruler, coloured highlighters and a calculator. Today most measurement is done on screen, quantities link straight into pricing, and estimates are shared in the cloud. This article combines our earlier pieces on technology in estimating and on why general contractors need estimating software. It looks at what has changed, what to look for, and what software still can’t do.
Key technologies in modern estimating
On-screen take-off
PDF take-off tools such as Bluebeam Revu let estimators measure lengths, areas, volumes and counts directly from drawings, with every measurement kept as a marked-up record. That makes checking and revising much faster.
3D earthworks and surface modelling
Tools like Kubla Cubed build existing and design surfaces from survey data and calculate cut and fill, which is essential for civil and subdivision work.
Estimating and cost-planning software
Dedicated estimating systems store rate libraries, link quantities to rates and produce structured estimates and reports. Well-built spreadsheets are still widely used, particularly for first-principles rates.
BIM and model-based quantities
Where designers produce a coordinated 3D model, quantities can be extracted from it (“5D” BIM). How reliable they are depends on how the model was built.
Cloud collaboration
Shared drawing sets, comments and version control reduce the risk of measuring a superseded revision.
AI-assisted take-off
Newer tools try to detect walls, rooms and symbols automatically. They can speed up repetitive counting, but every result still needs checking by someone who understands the drawings.
Benefits for builders and subcontractors
- Speed: more tenders priced with the same team.
- Accuracy: fewer arithmetic and transcription errors.
- Traceability: every quantity links back to a drawing mark-up.
- Easier revisions: compare drawing versions and update only what changed.
- Consistency: standard rate libraries and templates across estimators.
- Better reporting: clean summaries for clients, banks and project teams.
Why general contractors need estimating software
For a head contractor, the estimate is the foundation of the whole job. It becomes the budget, the buying schedule and the basis for variations. Software helps by:
- levelling multiple subcontractor quotes against the same scope;
- building preliminaries from the programme;
- turning the tender estimate into a cost-coded control budget;
- keeping historical cost data for future pricing.
What to look for in estimating software
- Fits your work type (residential, commercial, civil or a specialist trade).
- Handles your drawing formats and scales reliably.
- Exports to Excel and integrates with your accounting or job-costing system.
- Supports revision comparison and audit trails.
- Has local support and training, and pricing that suits your volume.
Limits: where people still matter
- Scope judgement: software measures what is drawn, not what is missing.
- Local pricing: rates must reflect current Perth and regional WA market conditions.
- Risk: ground conditions, access, programme and contract risk need experience to price.
- Garbage in, garbage out: a wrong scale or the wrong revision makes every quantity wrong.
How Measure Manage uses technology
We measure on screen in Bluebeam Revu, use Kubla Cubed for earthworks and civil quantities, and deliver structured Excel take-offs and estimates that builders can price or import. Every quantity is checked by an experienced estimator. See our construction estimating and material take-off services, and read about the future of construction estimation.
Frequently asked questions
Is estimating software worth it for a small builder?
Usually yes, even if it’s only on-screen take-off. The time saved on a few tenders often covers the cost. Alternatively, outsource take-offs and focus on pricing.
Can AI replace an estimator?
Not today. AI can speed up measurement, but scope interpretation, pricing and risk judgement still need people.
Want accurate take-offs without buying the software? Call Measure Manage on 0498 202 445.