Quick answer: Moving from On-Screen Takeoff (OST) to another estimating platform is usually a workflow transition, not a one-click conversion. Before making a change, document where your OST databases and plan files are stored, create verified backups, export the reports and tabular data your company may need later, and test a replacement on a representative project. Keep the existing OST environment available until your team has validated quantities, pricing, reports, and day-to-day procedures in the new system.
ConstructConnect has publicly stated that it is moving existing On-Screen Takeoff customers who use license-key or server-code activation to a subscription system that uses an email address and password. That licensing change may be a good reason to review your options, but it does not mean On-Screen Takeoff has been discontinued. Confirm your company’s exact licensing, renewal, access, and support terms directly with ConstructConnect before making a decision.
This guide explains how to migrate from On-Screen Takeoff carefully, what OST can export, what may need to be rebuilt, and how to evaluate BuzzBID, STACK, PlanSwift, The EDGE, Bluebeam, Togal.AI, Beam AI, Takeoff Boost, and other alternatives without treating unlike products as interchangeable.
The safest transition begins before anyone cancels software, removes an installation, or changes a licensing arrangement. Your first goal is not to choose a new product. It is to understand what your estimating team relies on today.
Answer these questions in writing. A short inventory prevents the common mistake of treating “the OST data” as one file when the actual workflow may include databases, linked plan images, exported reports, spreadsheets, and pricing information stored elsewhere.
ConstructConnect’s release notes for OST version 4.0.0.805 state that customers using a License Key or Server Code are being migrated to a subscription system that uses an email address and password. The same release notes direct customers to ConstructConnect’s transition guidance for account-specific details.
Because licensing terms and rollout schedules can change, obtain written answers from ConstructConnect for your organization. Ask when your licenses will transition, what happens to installed versions, which functions remain available if a subscription ends, and how long you will retain access to your projects and exports. Do not base a migration deadline solely on a third-party article, including this one.
For additional context, see Is On-Screen Takeoff Being Discontinued? and ConstructConnect’s OST 4.0.0.805 release notes.
ConstructConnect’s documentation identifies several OST export paths. The right choice depends on whether you need an OST-readable backup, a human-readable historical record, or data that can be opened in another business application.
OST can export a bid as an OST Takeoff File. It can also create an OSP Bid Package that includes bid information, takeoff, and optionally the associated image files. These formats are designed for use with On-Screen Takeoff. An OSP package is useful for preserving or moving an OST project, but it should not be assumed to be a universal exchange format for competing takeoff systems.
ConstructConnect documents CSV exports from the Summary and Estimate tabs and report exports from the Projects, Summary, and Estimate tabs. Depending on the report and the software installed on the computer, PDF or Excel may also be available. These files are often the most useful long-term reference because they can be reviewed without recreating the full working takeoff.
For completed or important bids, consider retaining:
ConstructConnect’s import and export overview describes the supported formats. Test several exported files by opening them before treating the backup as complete.
ConstructConnect states that OST databases are stored by default under the OCS Documents folder on the local system drive, but administrators can change those locations. Plan images may also be linked from other local, network, or shared locations. Do not assume that copying one default folder captures every drawing and database.
Use OST’s folder settings and database dialogs to identify the real locations used by your company. If your team uses Quick Bid, shared Microsoft SQL databases, remote desktops, network storage, or custom folders, involve the person who manages that environment. ConstructConnect recommends running Compact and Repair on applicable Microsoft Access databases before moving them and keeping working databases separate from backups.
A sound backup process should be documented, stored in an approved location, and tested. Keep at least one protected copy that is not dependent on a single estimator’s computer. Follow your company’s retention, privacy, and security requirements when copying bid files.
Do not assume it can. OST and OSP files are proprietary project formats intended for On-Screen Takeoff. Competing products may accept plan files, spreadsheets, quantity data, or selected exports, but that is different from importing a complete editable OST project with all Conditions, measurements, page links, assemblies, and pricing logic intact.
Ask each vendor to demonstrate the exact import using a copy of your own project. If a vendor claims it can convert OST data, request a written description of what transfers, what does not, how accuracy is checked, and what happens to linked drawings. Until that test is complete, plan to rebuild templates and begin new takeoffs from the original plan set.
The best alternative depends on the work your company estimates. A commercial drywall contractor may prioritize wall assemblies, openings, alternates, labor productivity, and integrated pricing. A general contractor may value broad trade coverage, collaboration, and bid management. A small team may put more weight on training, implementation time, and predictable cost.
Products that may appear on an OST evaluation list include BuzzBID, STACK, PlanSwift, The EDGE, Bluebeam Revu, Togal.AI, Beam AI, and Takeoff Boost. They do not all perform the same job. Some combine takeoff and estimating, some focus mainly on measurement, some emphasize AI-assisted detection, and some provide a managed service. Compare them against a written requirements list rather than a generic feature count.
Useful evaluation questions include:
For a broader comparison, see On-Screen Takeoff alternatives to consider and construction estimating software pricing.
List databases, drawing locations, active bids, completed bids, reports, cost data, integrations, user roles, and custom procedures. Identify the information that must remain available for warranty questions, audits, change orders, and future pricing analysis.
Back up the OST environment and linked source drawings using your company’s approved process. Open a sample of the copied databases, reports, spreadsheets, and plan files from the backup location. A copied folder is not a verified backup until someone confirms that its contents are usable.
Export reports and tabular data for the projects your company is likely to reference. Prioritize active work, recent completed bids, large projects, negotiated work, unusual assemblies, and estimates tied to warranties or ongoing change orders. You may not need the same level of export for every old bid.
Use a recent plan set that reflects normal complexity, not only a simple vendor demonstration. Have an experienced estimator complete the same defined scope in OST and the proposed system. Compare quantities, exclusions, revision handling, reports, time spent, and the steps required to reach a reviewable estimate.
Recreate the Conditions, assemblies, templates, cost categories, labor assumptions, and reports that the new workflow requires. Have a second qualified person review the setup. Automation can reduce repetitive work, but the estimator remains responsible for scope interpretation, quantities, pricing, and the final bid.
Choose a cutover rule that the team can follow. A common approach is to finish existing bids in their original system and start selected new bids in the new platform. Keep OST available during a defined validation period. Do not remove access to the old environment until active work is complete and the organization has confirmed its contractual and historical-access needs.
There is no dependable universal timeline. A single estimator with a simple workflow may be ready after a few training and test projects. A multiuser company with shared databases, Quick Bid, custom assemblies, detailed reporting, or formal IT controls may need a longer phased implementation.
Set milestones instead of relying on a generic number of days: inventory complete, backups verified, exports reviewed, pilot accepted, templates approved, users trained, first live bids quality checked, and historical access confirmed. The schedule should follow the evidence that the new workflow is ready.
BuzzBID is one option for commercial drywall, metal framing, acoustical ceilings, plaster, EIFS, stucco, insulation, painting, and fireproofing estimators. Leonard Buzz and Chris Buzz, who were part of the team behind On-Screen Takeoff and Quick Bid, co-founded BuzzBID in 2019. BuzzBID combines takeoff and estimating and offers ClickONCE computer vision tools for supported takeoff tasks.
BuzzBID publishes its current subscription options on its pricing page. Features and prices can change, so use that page and a written quote when budgeting. During a demonstration, ask BuzzBID to use one of your representative plan sets and show the complete path from plans to quantities, pricing, review, and reports.
BuzzBID states that ClickONCE can make supported takeoff work up to 500% faster than manual methods. That is a vendor performance claim, not a guarantee for every project or user. Results depend on drawing quality, scope, workflow, hardware, setup, and estimator experience. Validate the benefit with your own plans before relying on it for staffing or bid deadlines.
For a direct product discussion, see BuzzBID compared with On-Screen Takeoff and Quick Bid, or schedule a BuzzBID demonstration.
ConstructConnect’s current public information describes a transition from license-key or server-code activation to subscription credentials for affected customers. That is not the same as announcing that OST is discontinued. Confirm the status and terms that apply to your account directly with ConstructConnect.
Do not treat an OST or OSP file as a complete cross-platform conversion file. BuzzBID can work from original plan documents and customer setup information, but a new workflow may require Conditions, assemblies, pricing, and templates to be configured or rebuilt. Ask for a demonstration using your own files.
Usually, the lower-risk approach is to finish an active bid in the system where it began unless there is a compelling operational reason to move it. If a live bid must be rebuilt, require an independent quantity and pricing comparison before submission.
Preserve the databases, linked plan files, relevant OST or OSP exports, important reports, CSV or spreadsheet data, pricing references, and documentation of company-specific estimating procedures. The exact list depends on how your organization uses OST and related systems.
A careful migration from On-Screen Takeoff protects historical information without forcing the team to reproduce every old project in a new platform. Inventory the current environment, verify backups, export useful records, test alternatives with real work, validate the rebuilt standards, and phase the cutover. Most importantly, confirm current licensing and access terms with each provider rather than relying on assumptions.
Important information: This article provides general educational information about evaluating and transitioning estimating workflows. Product features, compatibility, export options, pricing, licensing, and support policies can change. Confirm current requirements directly with each provider and test your organization’s data and workflows before changing systems. References to On-Screen Takeoff, Quick Bid, ConstructConnect, and other companies or products are for identification and comparison only and do not imply sponsorship, endorsement, affiliation, or approval. BuzzBID is not affiliated with ConstructConnect or the other companies named. All third-party names and marks belong to their respective owners.