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STACK Review

STACK provides preconstruction and construction workflows, specializing in digital takeoff and estimating, utilizing AI Assist for automated detection and measurement of building components.

shipped Sep 23, 2026paid
Domain rating61Monthly visits58K/mo
STACK — product screenshot

Why it matters

1STACK IQ, an AI capability, launched in September 2026, enabling natural language prompts for takeoff and estimating.
2The platform holds a 4.5/5 rating for STACK Takeoff & Estimate on G2.
3Users report up to 10x faster takeoffs compared to manual methods.
4STACK offers an extensive pre-built database to aid in the estimation process.

Specs

API Available

Yes, public API

overview

What is STACK?

STACK is a preconstruction and construction workflow tool that enables contractors, subcontractors, suppliers, and manufacturers to streamline digital takeoff and estimating. It utilizes AI Assist to automate the detection and measurement of building components directly from blueprints, generating detailed material and labor estimates.

features

Key Features of STACK

STACK offers a comprehensive suite of features designed to enhance preconstruction and construction workflows, with a strong emphasis on automation and collaboration.

  • AI Assist for automated detection and measurement of building components.
  • Digital takeoff and estimating capabilities for various measurement types (area, linear, arc, pitched, count, volume).
  • Pre-built database for estimation, including custom item and assembly creation.
  • Auto Plan Organization and Advanced Plan Search for document management.
  • Team Collaboration features for real-time plan review, annotation, and sharing.
  • STACK IQ for natural language prompt-based takeoff, estimating, and proposal generation (launched September 2026).
  • Integrated Estimating for associating items and assemblies with takeoffs to create bills of material.
  • Version Compare for identifying changes between plan revisions.
  • STACK for Excel and ERP Connectors for streamlined data flow.
  • Mobile Plan Viewing and Daily Reports for field operations and project management.

use cases

Who Should Use STACK?

STACK is designed for a broad range of construction professionals seeking to optimize their preconstruction and project management processes, particularly those involved in detailed estimation and bid preparation.

  • Specialty Contractors (e.g., concrete, drywall, painting, mechanical, electrical): For accurate quantity and material takeoffs and detailed bid proposals.
  • General Contractors: To manage the bidding process, centralize documents, and ensure accurate cost estimation across projects.
  • Material Manufacturers and Suppliers: For generating precise material lists and estimates based on project blueprints.
  • Project Owners/Developers: To evaluate bids, track project progress, and ensure cost accuracy from the preconstruction phase.
  • Preconstruction Teams: For streamlining workflows, automating measurements, and improving collaboration on project plans and specifications.

how to use

How to Use STACK

STACK facilitates preconstruction tasks by allowing users to upload digital plans, perform measurements, and generate estimates. The platform's AI capabilities assist in automating component detection and measurement.

  • 1Upload digital blueprints and project specifications to the cloud-based platform.
  • 2Utilize AI Assist or manual tools to perform digital takeoffs, measuring areas, lengths, counts, and volumes.
  • 3Access the pre-built database or create custom items and assemblies to associate with takeoffs.
  • 4Generate detailed material and labor estimates, customizing for costs, markup, and tax.
  • 5Create and send client-ready proposals with company branding.
  • 6Collaborate with team members by sharing plans, annotations, and project documents.

pricing

STACK Pricing & Plans

STACK operates on a paid subscription model. While specific tier names and prices are not publicly detailed, user reviews indicate that pricing can be a significant factor, with renewal quotes reportedly increasing by 40% to 50% compared to initial contracts.

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Pros

  • +High user-friendliness and ease of operation, making it intuitive for new users.
  • +Significant improvements in takeoff speed and accuracy, with reports of 10x faster takeoffs.
  • +Cloud-based platform facilitates real-time collaboration among distributed teams.
  • +Customization options for takeoff libraries and reporting features like 'group by'.
  • +STACK IQ (launched September 2026) enables AI-driven takeoff and estimating via natural language prompts.
  • +Comprehensive suite of tools covering takeoff, estimating, bid management, and document management.

Cons

  • −A learning curve may exist for new users transitioning to the platform.
  • −Software may not be as customizable for highly specialized or energy-specific projects.
  • −Concerns regarding pricing, with reports of renewal quotes being 40% to 50% higher than original contracts.
  • −Lack of publicly available specific pricing tiers and details.

Policies

Pricing Page

View Pricing→

Similar Tools

STACK vs Competitors

STACK is positioned as a leading cloud-based preconstruction platform, particularly strong in digital takeoff and estimating, and differentiates itself through its AI-powered automation and integrated workflows.

1
OpenConstructionERP↗

This open-source construction ERP provides comprehensive features including BOQ, CAD and BIM takeoff, 4D scheduling, and 5D cost modeling, available as a free desktop app.

OpenConstructionERP offers a much broader suite of tools beyond just takeoff and estimating, including BIM integration and scheduling, which STACK does not cover. However, as an open-source solution, it may require more technical comfort for setup and community support compared to STACK's commercial support.

2
Easy Takeoffs↗

It is a cloud-based takeoff tool offering a similar upload, scale, and measure workflow across devices at a significantly lower price point.

Easy Takeoffs provides a comparable cloud-based takeoff experience to STACK but at a fraction of the cost, making it a more budget-friendly alternative. While it offers core takeoff functionality, STACK's AI detection and deeper assembly library might be more advanced.

3
PlanSwift↗

This desktop-based takeoff tool uses a point-and-click measurement system and offers a one-time license model, which some contractors prefer over subscription-based pricing.

PlanSwift operates as a desktop application with a perpetual license, contrasting with STACK's cloud-native, annual subscription model. While it excels at digital takeoff, it may not offer the integrated AI assist for automated detection that STACK provides.

4
Togal.AI↗

Togal.AI is an AI-powered takeoff tool built by estimators that automatically detects, measures, and compares building components directly from drawings with high accuracy.

Togal.AI is a strong direct competitor to STACK in the AI-powered takeoff space, offering highly automated measurement. Its pricing is comparable to STACK's premium tiers, and it focuses heavily on AI accuracy and speed, potentially offering a more refined AI experience for takeoff.

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