The Best AI Construction Estimating Software for Subcontractors (2026)
AI has changed how estimators take off plans — but most of the tools chase general contractors, enterprise preconstruction teams, or residential remodelers. This guide ranks the real AI construction estimating and takeoff platforms in 2026 for the buyer they mostly overlook: the commercial specialty subcontractor bidding from a plan set and handing a GC a Schedule of Values. We cover where each tool wins, where it breaks, and who it’s actually for.
Disclosure: ScopeTakeoff makes AI estimating software for subcontractors, so we rank ourselves first — for the specific buyer this guide is written for. We’ve tried to describe every other tool fairly, including the buyers it serves better than we do. Pricing and features are as of July 2026 and change often; verify with each vendor.
What actually matters for a subcontractor
Speed-to-count is table stakes now. The distinctions that matter for a sub are whether the tool produces a complete bid (quantities, priced assemblies with labor, and a GC-ready SOV) or just quantities you export to a spreadsheet; whether it’s priced and sold for a small sub or for a GC team; whether you can sign up and use it yourself or have to sit through a sales process; and whether the AI is honest about what it does. We weighed fit-for-subs, full-estimate versus takeoff-only, pricing and contract terms, self-serve access, and how straight each vendor is about accuracy.
Best for commercial subcontractors bidding from plans + SOV
ScopeTakeoff is a full estimating engine built for specialty subs rather than GCs. An AI plan assistant answers spec and scope questions with the source sheet cited, auto-calculating trade assemblies across 16+ trades turn each measurement into priced line items with labor (conduit-to-wire, duct-by-the-pound, cubic yards, board count, slope factor), and one click produces a Schedule of Values and a branded proposal with overhead, profit, and change-order versions. Aerial takeoff measures sitework straight from a satellite photo by address. AI measuring — counts proposed by the model, confirmed by the estimator — is in early access, trained on the platform’s own verified takeoffs.
Strengths. Purpose-built for subs with real per-trade assemblies and labor, not generic counts; produces a complete bid, not just quantities to export; $100 per person per month, month-to-month, self-serve signup with no sales call; and an honest AI stance — you confirm the count.
Watch-outs. It’s aimed at commercial subs who bid from plan sets and issue an SOV — not GC preconstruction departments or residential remodelers. Fully automatic measuring is still early access, not general availability.
Price: $100/person/month, month-to-month. 14-day free trial, no credit card.
Best for estimator teams that want fast AI area takeoff and already run a pricing stack
Togal is one of the strongest AI takeoff engines available. It reads drawings to classify rooms and spaces and measure areas and counts automatically in the browser, cutting the manual clicking that eats a takeoff.
Strengths. Excellent automated area and space takeoff with high vendor accuracy claims; genuinely fast on floor-plan-heavy work.
Watch-outs. It’s takeoff-centric — there’s no built-in pricing engine, so quantities flow out to a spreadsheet or a tied-in cost tool, meaning you maintain a multi-software stack. The workflow leans toward GC and estimator teams rather than a single-trade sub.
Price: subscription / quote-based; no public flat rate.
Best for teams that want done-for-you takeoffs instead of software to drive
Beam takes a different approach: you upload plans and specs, and its people-plus-AI process returns a custom takeoff in a couple of days, quality-checked by human reviewers and delivered in Excel or PDF, aligned to your formats.
Strengths. Nothing to learn; expert-reviewed outputs with a tight accuracy claim; supports many trades.
Watch-outs. It’s a service with a turnaround, not a live tool you drive on bid day, so you have less moment-to-moment control and a dependency on delivery timing. Pricing is quote-based.
Price: quote-based, per-project service.
Best for small contractors testing AI takeoff at the lowest cost
Kreo offers AI-assisted 2D and 3D takeoff with a chat-style interface for refining results conversationally, at the lowest entry price in the category.
Strengths. Very low entry cost, conversational refinement, cloud-based, low risk to trial.
Watch-outs. No independent accuracy testing is publicly available, so treat vendor claims with some skepticism; it’s more a takeoff tool than a full sub estimating engine with assemblies and an SOV.
Price: from around $35/month.
Best for cloud takeoff and bid management at GC / mid-market scale
STACK is a widely adopted cloud takeoff and estimating platform with a fast plan viewer, a deep condition library, strong collaboration, and AI assists such as auto-detecting doors, windows, and walls, plus roof takeoff from aerial imagery.
Strengths. Excellent cloud plan viewer and multi-user collaboration; integrations with Procore, QuickBooks, and others; cost-data estimating alongside takeoff.
Watch-outs. The feature-comparable tiers are priced and packaged for GC and mid-market teams (roughly $1,900–$3,000 a year, often billed annually), which is heavy for a small sub; and its auto-count is reliable on simple items but needs auditing on complex sheets.
Price: roughly $1,900–$3,000/year for full features.
Best for trades that want a familiar desktop point-and-click takeoff
PlanSwift is a long-established on-screen desktop takeoff tool that remains common with trades that like a familiar, point-and-click workflow.
Strengths. Proven and familiar, a one-time license, and genuinely productive for experienced estimators who already know it.
Watch-outs. Desktop-only with no cloud or mobile, a dated interface, no AI takeoff, and annual maintenance billed on top of the license.
Price: around $1,495 one-time, plus annual maintenance.
Best for teams already inside Autodesk Construction Cloud / BIM
Autodesk Takeoff pulls 2D sheets and 3D BIM models into a single browser environment so estimators can generate quantities from either, synced to Autodesk Docs.
Strengths. Unifies PDF and BIM quantities, tight integration with Autodesk Construction Cloud, and concurrent multi-user work on a package.
Watch-outs. It really only makes sense if you’re committed to the Autodesk ecosystem; it’s browser-dependent and leans enterprise, which is a lot of platform for a single-trade sub.
Price: subscription within Autodesk Construction Cloud (quote / enterprise).
The 2026 AI estimating tools, side by side
| Tool | Best for | AI approach | Starting price |
|---|---|---|---|
| ScopeTakeoff | Commercial subs (plans + SOV) | Plan chat + auto-calc assemblies; AI measuring in early access, you confirm | $100/person/mo |
| Togal.AI | GC / estimator takeoff | Auto area & room takeoff (export to price) | Subscription / quote |
| Beam AI | Done-for-you takeoffs | Human-in-the-loop AI service, 2–3 day delivery | Quote |
| Kreo | Budget AI takeoff | AI 2D/3D takeoff + chat refine | ~$35/mo |
| STACK | GC / mid-market cloud | Cloud takeoff + AI auto-count & roof-from-aerial | ~$1,900–3,000/yr |
| PlanSwift | Desktop point-and-click | Manual (no AI takeoff) | ~$1,495 one-time |
| Autodesk Takeoff | Autodesk / BIM teams | 2D + 3D takeoff inside ACC | Subscription (ACC) |
How to choose
If you’re a general contractor running preconstruction, Togal or STACK will fit the way your team works. If you’d rather outsource the takeoff entirely, Beam’s done-for-you model is the cleanest path. If you live inside Autodesk, use Autodesk Takeoff. If you want the cheapest way to try AI takeoff, Kreo is the low-risk entry. But if you’re a commercial specialty subcontractor who bids from a plan set, prices with trade assemblies, and hands a GC a Schedule of Values — and you want that in one self-serve tool at a price a small shop can actually carry — that’s the exact buyer ScopeTakeoff is built for. See the AI construction estimating software hub for how it works across every trade.
Common questions
Built for subs, not GCs —
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AI plan chat, auto-calc trade assemblies, aerial takeoff, and one-click SOV. $100/person/month. 14-day free trial, no credit card.
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