Tool profile
STACK: cost, fit and limits
STACK is a construction software suite with plans for takeoff and estimating, plan viewing and markup, and field and project management, priced per user per month, with AI Takeoff and STACK IQ named in its navigation.
What to know first
STACK lists three per-user plans. Build & Operate starts at $49 a month for responsive plan viewing, markup, issues, punch lists, daily reports and workflows, with a two-week free trial. Takeoff & Estimate starts at $299 a month for quantity, labor and material takeoff, estimates and proposals, and lists a free version. The Full STACK Platform starts at $348 and is priced through a Build Your Price flow.
STACK at a glance
| Maker | Not stated on the vendor pages, Not stated on the vendor pages |
|---|---|
| Free plan | Free trial only |
| Entry price | As low as $49 per user per month (Build & Operate) |
| API access | No |
| Category | Best AI Construction Estimating Software in 2026, rank 6 of 13 |
| Website | stackct.com |
Who STACK is best for
Contractors who want field and office in one tool
Build & Operate and the full platform bring plan viewing, daily reports and punch lists alongside estimating, so site teams and estimators work from the same plan set and the same version of every drawing.
Estimators who need unlimited plans
Takeoff & Estimate lists unlimited plans and projects, so project count does not change the per-user price and an estimator can keep every past bid in the same account.
Teams who want to start small
Build & Operate starts at $49 per user with a two-week trial, a cheaper way to put plans in front of field staff first.
STACK plans and pricing
| Plan | Price | What it includes |
|---|---|---|
| Build & Operate | As low as $49 per user per month | Responsive plan viewing and markup, issues, punch lists, daily reports and customizable workflows. Two-week free trial. |
| Takeoff & Estimate | As low as $299 per user per month | Quantity, labor and material takeoff, flexible estimates and proposals, unlimited plans and projects. The page also lists a free version. |
| Full STACK Platform | As low as $348 per user per month (starting point, Build Your Price) | Plan measurement and markup, integrated estimating, and field and project management in one subscription, with a starting price that the Build Your Price flow adjusts. |
Checked November 2026.
What STACK does
- Quantity, labor and material takeoff
- The Takeoff & Estimate plan measures quantities from plans and carries labor and material costs into the estimate, with proposals generated from the same data.
- Plan viewing and markup
- Build & Operate gives a responsive plan viewer with markup tools, which suits field teams who open drawings on phones or tablets rather than at a desk.
- Issues, punch lists and daily reports
- Field teams log issues, punch lists and daily reports in the plan set, tying the record of site problems to the same drawings the estimate used.
- Customizable workflows
- Build & Operate lists customizable workflows, though the pricing page does not describe which steps or approvals can be configured, how many workflows are allowed or whether estimating steps can be included.
- AI Takeoff and STACK IQ
- The navigation names AI Takeoff and STACK IQ. The pricing page does not link either to a plan or explain how they work, so test them in a demo.
How STACK handles your data
The STACK pricing page does not state whether customer plans or estimates train any model, how long data is retained, where it is hosted or which certifications apply. Because the product holds plan sets, estimates and daily site reports, those are meaningful gaps. The vendor's policy was not checked beyond the pricing page. Ask for the privacy policy, hosting region and retention terms, and ask specifically whether AI Takeoff and STACK IQ send drawings to a third-party model provider, and whether an admin can switch them off for sensitive projects.
Where STACK falls short in practice
- Large step to takeoff. The headline $49 buys plan viewing and field tools. Takeoff and estimating start at $299 per user, so a buyer who reads the first number budgets far too little.
- Full platform price is variable. The $348 figure is a starting point inside a Build Your Price flow, and the page states no minimum users, no annual discount and no figure beyond the starting point, so a quote is needed.
- Unexplained AI names. AI Takeoff and STACK IQ are in the navigation but the pricing page does not say which plan includes them, what they do or whether they cost extra on top of the listed per-user price.
Works with
Alternatives to STACK
STACK: common questions
How much does STACK takeoff cost?
Takeoff & Estimate starts at $299 per user per month, as low as, with quantity, labor and material takeoff, estimates and proposals and unlimited plans and projects. The $49 Build & Operate price does not include takeoff. The Full STACK Platform starts at $348 per user through a Build Your Price flow.
Does STACK have a free trial?
Build & Operate lists a two-week free trial, and the Takeoff & Estimate plan lists a free version. No trial is mentioned for the Full STACK Platform. Confirm on a call what the free version limits, since the page does not describe it.
What is STACK IQ?
The navigation names STACK IQ and AI Takeoff, but the pricing page does not tie either to a plan or describe how it works. Ask for a demo on one of your own drawing sets, and ask whether they are included in the $299 or $348 starting prices.
Does STACK include field management?
Yes. Build & Operate lists issues, punch lists, daily reports and customizable workflows, and the Full STACK Platform lists field and project management alongside estimating. Takeoff & Estimate alone focuses on measuring, estimates and proposals, so pick the platform if the site team needs the same tool.
Are there minimum users on STACK plans?
The pricing page does not state minimum user counts or annual versus monthly discounts. Prices are per user per month with an as-low-as qualifier, so request a quote with your seat count. Ask whether the Build Your Price flow changes per-user rates as seats grow.