STACK Review
Cloud takeoff and estimating platform for contractors and subcontractors
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Quick verdict
STACK is best for Commercial and residential contractors and subcontractors that want a cloud-based, collaborative takeoff-and-estimating platform to get from plans to a profitable bid quickly. Pricing starts at $250/mo. Strongest fit: General Contractors. 4.5 / 5 aggregate user rating.
About STACK
STACK is a cloud-based preconstruction platform for digital takeoffs and estimating, widely regarded as one of the best overall tools in the category. Contractors and subcontractors upload blueprints or aerial images, measure plans, calculate material and labor costs, and generate a bid — all in one integrated takeoff-and-estimating workflow designed to get from plans to a profitable proposal as fast as possible. Because it is cloud-based, multiple estimators can collaborate on the same project, and STACK has added GPT-powered AI chat to help users quickly understand project details.
Reviewers give it strong marks — an overall rating around 4.5/5 with customer support scoring even higher (about 4.7/5) — and consistently praise its ease of use and the way cloud access streamlines estimating and team collaboration. It is used across commercial and residential trades, from general contractors to electrical, plumbing, concrete, and roofing subcontractors building bids from takeoffs.
The trade-offs are price and a few feature gaps. STACK is billed annually per user — $2,999/year for one user, dropping to $2,199/user at three or more — which is steep for a small shop, and additional users or features add cost. Reviewers also cite limited mobile functionality and a wish for more prebuilt assemblies. For a contractor or subcontractor whose bottleneck is fast, accurate, collaborative takeoffs and estimates, STACK is a category benchmark; very small or budget-constrained shops may prefer a cheaper estimating tool like Clear Estimates.
Pricing
| Tier | Price | Notes |
|---|---|---|
| 1 user | Custom quote | Entry tier |
| 2 users | Custom quote | |
| 3+ users | Custom quote | Top tier |
Billed annually: $2,999/year for one user (~$250/mo); $2,599/user/year at two users; $2,199/user/year at three or more. Integrated takeoff + estimating with GPT-powered AI chat. Trade plug-ins and add-ons may cost extra.
STACK starts at $250/mo on the 1 user tier. The 1 user → 2 users → 3+ users ladder places it in the premium segment of the FSM market. At this tier you're paying for enterprise-grade reporting, custom workflows, dedicated account management, and integration depth. Justified for established shops ($1M+ revenue, 10+ techs); overkill for smaller teams. No public free trial — demo required to evaluate.
Pricing verified 2026-05-28. Vendors change pricing without notice; verify with STACK before purchasing.
Estimate uses the published starting tier and detects per-user vs per-company pricing automatically. For an exact quote at your team size and feature requirements, request a quote from STACK.
Key features
Integrations
Pros
- + Integrated takeoff and estimating
STACK combines digital takeoff and estimating in one cloud workflow — measure plans, calculate material and labor, and produce a bid — so estimators move from blueprints to a proposal without switching tools.
- + Cloud-based collaboration
Because it is cloud-based, multiple estimators can work on the same project and access it anywhere, which reviewers credit with streamlining estimating and improving team collaboration.
- + Strong ratings and support
An overall ~4.5/5 rating with customer support around 4.7/5, plus being named a best-overall estimating tool, signals real satisfaction and a dependable support experience.
- + GPT-powered AI chat
Built-in AI chat helps users quickly understand project details, speeding up the early stages of takeoff and estimating.
- + Serves many trades
Used by general contractors and subcontractors across electrical, plumbing, concrete, and roofing, STACK fits both commercial and residential bidding rather than a single niche.
Cons
- − Steep annual pricing
At $2,999/year for one user (dropping to $2,199/user at 3+), STACK is expensive for a small business, and billing is annual rather than a low monthly entry point.
- − Costs add with users and features
Reviewers note frustration with extra costs for additional users or features, so total cost climbs as the team and needs grow.
- − Limited mobile functionality
Some users report the mobile experience is limited compared with desktop, which matters if estimators want to work from the field.
- − Wants more prebuilt assemblies
Reviewers wish for a deeper library of prebuilt assemblies; building your own takes setup time before the estimating speed pays off.
- − Best for committed estimators
Its value shows for shops that estimate regularly; an occasional bidder may not justify the annual per-user cost versus a cheaper or monthly tool.
Implementation timeline
3–6 months for full deployment
STACK is annual and per-user, so size your seat count to your active estimators and budget for the yearly commitment (and any add-on/plug-in costs). Setup centers on building or importing your assemblies, material/labor cost data, and proposal templates so estimates reflect how you bid — invest here since reviewers note the prebuilt library is thinner than some want. Train estimators on the cloud takeoff workflow and collaboration features, and connect QuickBooks/Procore if you use them. Because mobile is limited, plan for desktop-centric estimating.
Best for / Watch out for
Best for
Commercial and residential contractors and subcontractors that want a cloud-based, collaborative takeoff-and-estimating platform to get from plans to a profitable bid quickly
Watch out for
Annual per-user pricing is steep for small businesses and adds cost as you add users or features; reviewers cite limited mobile functionality and a desire for more prebuilt assemblies
Available for these trades
Top alternatives to STACK
Matched by vertical fit, price tier, and team size — not just rating.
Commercial mechanical/electrical/plumbing contractors with $5M+ revenue running both service and project work
Mid-large field service organizations 25+ techs running mixed fleet + service operations
Stronger general contractors specialty fit.
Commercial HVAC/electrical/plumbing contractors 10-200 employees mixing project and service work
Stronger electrical specialty fit.
Also strong for general contractors.
User reviews
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Frequently asked questions
How much does STACK cost?
STACK is billed annually per user: $2,999/year for one user (about $250/mo), $2,599/user/year at two users, and $2,199/user/year at three or more. Additional users and some features add cost, and there is no low monthly entry plan.
What is STACK best at?
Integrated, cloud-based takeoff and estimating. Contractors upload plans, measure, calculate material and labor, and generate bids in one collaborative workflow, with GPT-powered AI chat to speed understanding project details. It is frequently rated a best-overall estimating tool (~4.5/5).
Who uses STACK?
Commercial and residential general contractors and subcontractors — including electrical, plumbing, concrete, and roofing — who build bids from takeoffs. Its cloud collaboration suits teams of estimators rather than a single occasional bidder.
What are STACK’s weaknesses?
Reviewers cite steep annual per-user pricing (hard for small shops), extra costs for users/features, limited mobile functionality, and a desire for more prebuilt assemblies. Budget-constrained or very small shops may prefer a cheaper monthly tool like Clear Estimates.
STACK vs PlanSwift?
Both are takeoff/estimating tools. STACK is fully cloud-based with strong collaboration, AI chat, and high support ratings at annual per-user pricing (~$2,999/yr). PlanSwift (by ConstructConnect) is a long-established takeoff tool at $1,749/user/year with trade plug-ins sold separately. Teams wanting modern cloud collaboration lean STACK; those wanting established point-and-click takeoff may consider PlanSwift.
Ready to try STACK?
Get a custom quote — pricing is not public.
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