AI for Contractors: Faster Takeoffs and Better Bids, From the Spooner Retreat
AI construction takeoff, step by step: what AI counts, what your estimator still checks, and how checked quantities turn into better bids.
In this article
- What the two Spooner sessions covered
- Takeoff, estimate, bid: three different jobs
- How an AI construction takeoff works, step by step
- What AI does, and what a person still checks
- Bid research and AI bid writing for construction
- Where AI job costing fits
- Where to start this month
- Frequently asked questions
- See AI for construction
An AI construction takeoff is a first pass, not a finished number. AI reads the current plan set and pulls out counts, lengths, areas and assemblies, with each quantity tied back to the sheet it came from. Your estimator then checks scale, units, addenda, scope gaps and anything the tool flagged as uncertain before a single price is applied. Used that way, AI for contractors means less time counting symbols and more time pricing and choosing the right work.
That was the core of Aaron Libner's two back-to-back sessions at the AI Business Retreat in Spooner, Wisconsin, on September 15, 2026. Here is what they covered and how to try the same workflow on your next bid.
What the two Spooner sessions covered#
Both sessions were part of the Leadership Track, the retreat's track for owners and CEOs, at The Island in Spooner. Aaron Libner, a Certified AIBMM Executive Coach and president of Coulee Tech's Eau Claire market, taught them as a pair, 45 minutes each.
- More Bids. Better Margins. Construction Takeoffs With AI (1:00 p.m.) is built around a real plan set on screen. Its stated output is a checked, source-linked quantity takeoff and the review checklist to trust it.
- Win More of the Right Work: Research Faster and Build Better Bids With AI (1:45 p.m.) starts from that checked takeoff and moves through opportunity research, a go/no-go scorecard, a compliance matrix, pricing from company rates and a draft bid package.
The handoff between them is the point. Checked quantities feed the bid, and at no stage does AI invent a price or send a bid without a person signing off. For the rest of the day, including the other two tracks, see our photo recap of the AI Business Retreat.
Takeoff, estimate, bid: three different jobs#
The takeoff session opens by separating three jobs that often get blurred:
- A takeoff measures scope: how many, how long, how big.
- An estimate applies your costs to those quantities: labor, equipment, materials and overhead.
- A bid is the commercial offer: the price plus scope, inclusions, exclusions, assumptions, schedule and alternates.
Construction estimating AI can help at all three stages, but the checks are different at each one. Blurring them is how a quick demo turns into a number nobody can defend.
How an AI construction takeoff works, step by step#
The session outline follows five stages. You can copy them into your own process.
1. Check the intake before AI touches anything#
Confirm you have the full plan set, the specifications, every addendum and the drawing dates. Confirm the scope package you are pricing, the scale on each sheet and the units. Plenty of takeoff errors start here: an old sheet, a missing addendum, or a detail drawn at a different scale than the plan around it.
2. Let AI extract quantities, with a sheet reference on every line#
The AI pass pulls counts (fixtures, doors, devices), linear measurements (walls, pipe, conduit, curb), areas (flooring, roofing, drywall) and assemblies. The rule that matters: every quantity links back to the sheet it came from. If a tool gives you a number with no source, you cannot check it, and you should not price it.
3. Compare revisions and addenda#
Run the current sheets against earlier versions and each addendum, then flag quantity changes and scope gaps. This side-by-side reading is tedious for a person, which makes it a good first job for AI. A missed addendum can cost far more than the hour it takes to catch it.
4. Have your estimator verify#
Spot-check measurements, resolve anything flagged as low confidence, and write down exclusions. The session keeps this step with the estimator on purpose.
5. Export a standard quantity inventory#
Export the checked quantities in the same format every time, with the source trail attached. A consistent format makes the bid faster.
What AI does, and what a person still checks#
| AI's first pass | What your estimator still owns |
|---|---|
| Counting repeated symbols across sheets | Confirming the legend means what the tool thinks it means |
| Measuring lengths and areas | Confirming scale on every sheet, including enlarged details |
| Reading the current sheets | Confirming the revision is current and every addendum is in |
| Grouping items into assemblies | Unusual assemblies and scope boundaries between trades |
| Flagging low-confidence items | Resolving them and documenting exclusions |
Takeoff software vendors publish their own accuracy figures. The number that matters to you is the one you measure on your own work, which is the first step under "Where to start" below.
Bid research and AI bid writing for construction#
The second session starts from a blunt idea: the fastest bad bid is still a bad bid. More bids are not the goal. More profitable wins are.
Research the opportunity#
Use AI to gather and summarize what you know about the project, the owner, the general contractor, your relationships, the location, the schedule, the requirements and the addenda. For federal work, contracting offices post their notices on SAM.gov Contract Opportunities (opens in a new tab), which anyone interested in government work can search.
Score it: go or no-go#
Before anyone prices the job, score it. The session's scorecard covers six factors:
| Factor | The question to answer |
|---|---|
| Fit | Is this our kind of work, at our size, in our area? |
| Capacity | Do we have crews and estimator time when this job runs? |
| Competition | Who else is bidding, and how do we usually fare against them? |
| Risk | What in the documents, schedule or owner worries us? |
| Win path | Why would we win: price, relationship, schedule or quality? |
| Margin confidence | How sure are we that the number holds up? |
One simple way to use it: score each factor from 1 to 5 and set your cutoff before you look at the job. AI can draft the answers from your research. The owner or estimator makes the call.
Build a compliance matrix#
List every deadline, required form, bond, insurance requirement, alternate, submission rule and open question in one table, each with an owner and a due date. AI can pull these out of a long bid package quickly, but check its list against the documents. One missed form can sink an otherwise good bid.
Bonds show why this matters. As of September 2026, FAR 28.102-1 (opens in a new tab) says the federal bonds statute (formerly known as the Miller Act) requires performance and payment bonds for any construction contract exceeding $150,000. Wisconsin sets its own payment and performance assurance requirements for public work in Wis. Stat. § 779.14 (opens in a new tab), and they step up as the contract price rises. This is general information, not legal advice. Read the solicitation, and ask your attorney or surety what applies to a given job.
Price from your numbers, not the model's#
The price comes from the checked quantities, your company's labor and equipment rates, your overhead and vendor costs you can source. AI can do the arithmetic and assemble the sheet. It should never supply a unit price from thin air.
Draft the bid, then approve it#
AI drafts the scope, inclusions, exclusions, assumptions, schedule, alternates and relevant proof, such as similar past projects. A person approves it before it goes out. The session outline ends with writing the result back to your CRM and setting a follow-up date, so a submitted bid does not vanish into an inbox.
Where AI job costing fits#
The bid is a prediction. Job costing tells you whether it came true. Once you win the work, compare the quantities and rates you bid against actual labor, materials and change orders. That loop is what makes the next takeoff and the next price more reliable.
Our page on AI job cost visibility for construction shows what that loop can look like: live dashboards for job cost against budget, labor and material variance, change order status, and bid win rates by project type and general contractor.
Where to start this month#
- Test on a job you already bid. Take a finished plan set where you trust your takeoff, run it through an AI takeoff tool, and compare line by line. You get your own accuracy number instead of a vendor's.
- Write down your two checklists. An intake checklist (sheets, specs, addenda, dates, scale, units) and a review checklist (spot-checks, low-confidence items, exclusions). Tools change. The checklists stay.
- Keep plans and pricing in business accounts. Plan sets, bid numbers and vendor quotes do not belong in personal chatbot accounts. Microsoft's privacy documentation for Microsoft Copilot (the business product formerly called Microsoft 365 Copilot) says prompts, responses and data accessed through Microsoft Graph aren't used to train foundation models (opens in a new tab). Whatever tool you use, look for that commitment in its terms. Our free AI acceptable use policy template puts the rules in writing for your team.
- Score your next real opportunity. Run it through the six-factor scorecard and a compliance matrix, even if you still price it the old way.
- Protect the jobsite side. Plan sets and bid files on trailer laptops are only as safe as the network they sit on. Read why the jobsite is your weakest network, and see our IT services for construction companies.
- Track three numbers. Estimator hours per bid, bids submitted and win rate. If hours drop and the win rate holds, the workflow is earning its keep.
Frequently asked questions#
Can AI do a construction takeoff?#
Yes, as a first pass. AI takeoff tools can read a plan set and extract counts, lengths, areas and assemblies, ideally with a sheet reference for each quantity. An estimator still needs to confirm scale, units, revisions and addenda, and resolve anything flagged as uncertain, before the quantities are priced.
Is an AI takeoff accurate enough to bid from?#
Not without review. Accuracy depends on the tool, the drawing quality and the trade, and the accuracy figures you see in marketing come from the vendors themselves. Test any tool on a completed job where you trust your numbers, then bid only from quantities your estimator has checked.
Can ChatGPT do a takeoff from a PDF plan set?#
It can attempt one, but treat the result as a rough draft. General chat assistants are more useful for reading specifications, summarizing addenda and drafting scope language than for measuring drawings to scale. If you use one on plans, have your estimator check every quantity against the sheet, and use a business account, not a personal one, for client documents.
Will AI replace estimators?#
No, not in the workflow taught in Spooner. The estimator stays in charge of scope, scale, addenda, unusual assemblies and final verification. What changes is how that time is spent: less counting, and more checking, pricing and deciding which work to chase.
How can AI help write a construction bid?#
AI can research the project and owner, build a compliance matrix from the bid documents, and draft the scope, inclusions, exclusions and assumptions. The price should come from your checked quantities and your own rates. A person should approve the bid before it goes out.
See AI for construction#
If you want to see what AI looks like on your own job costs and bid pipeline, see AI for construction from Coulee Tech. Our AI adoption guidance comes from Certified AI Business Maturity Model (AIBMM) Coaches, and our La Crosse and Eau Claire offices serve the Coulee Region and the Chippewa Valley.
