PataBid vs Accubid.

PataBid vs Accubid: the short answer

If you estimate electrical work in North America, you have almost certainly touched Accubid. It is the system a lot of us learned on, the database and labor units are what many contractors calibrate their own numbers against, and there is a deep bench of estimators who can sit down at it on day one. PataBid is younger, built for the browser, and its pitch is that takeoff, pricing and change orders should live in one place with no separate app and no upgrade invoices.

Both are estimating systems first. That distinction matters for the last section of this page, because takeoff is the part of the job that is changing fastest and neither of these is where the change is happening.

Prices and features are based on public documentation as of 2026. PataBid, Accubid, LiveCount and Trimble are trademarks of their owners; this is an independent comparison.

PataBid Quantify vs Accubid Classic: side by side

Based on public documentation as of 2026. Confirm current terms with each vendor.

Where Accubid still wins

Trust and continuity. Accubid's database and labor units have been argued over, adjusted and defended in bid reviews for decades. When a chief estimator says "our labor is Accubid column two minus fifteen percent for this crew," everybody in the room knows what that means. That shared vocabulary is worth a great deal, and it is the main reason a shop with a working Accubid setup should not move casually.

The assembly libraries are the second reason. An estimator who has spent ten years building branch circuit, feeder and gear assemblies in Accubid has an asset that is genuinely hard to replicate. Even where an export is possible, the labor factors, the condition adjustments and the little things like which fittings a given assembly assumes take time to rebuild and validate somewhere else.

The third reason is people. It is much easier to hire an estimator who already knows Accubid than one who already knows PataBid, and training time is a real cost on a small estimating desk. If most of your work comes from repeat GCs who are used to seeing your bids in a familiar format, that also weighs in.

The trade-offs are the ones you would expect from a desktop product. It is Windows only, takeoff needs a second application, and the enterprise suites are expensive per user once you move past Classic. We cover the broader picture on the Accubid alternative page.

Where PataBid wins

Simplicity of ownership. One subscription covers the estimating engine, graphical takeoff, supplier pricing and change-order management, and updates and support are in the price. There is no version to install, no separate takeoff app to license, and no question of which release your second estimator is on. For a contractor tired of maintenance invoices that arrive whether or not anything was improved, that predictability is the whole argument.

Platform is the second point, and it is bigger than it sounds. PataBid runs in a browser, so it works on a Mac, on a Chromebook and on a job trailer laptop the same way. More electrical estimators are on MacBooks every year, and the Windows-only rule pushes them toward virtual machines or a second computer. Our Mac takeoff software page is one of our most visited for exactly that reason.

Built-in takeoff is the third. Having the takeoff view and the estimate in the same application removes the export-and-import step that LiveCount users know well, and it keeps the counted quantity tied to the priced item. The mechanical side is also a real capability rather than a bolt-on, so a shop that does both electrical and plumbing or HVAC work can run one system.

What PataBid gives up is the installed base and the years of database history. If your numbers are calibrated to Accubid, you will spend time confirming that PataBid's labor and material data lands where you expect on your kind of work before you bid with it.

Migration considerations: assemblies, labor units, database

Whichever direction you move, plan for these before you sign anything.

1. Assemblies. Inventory the assemblies you actually use in a typical year, not the total library. Rebuild the thirty to fifty you actually use first, re-price a job you already bid, and compare line by line before you trust it.
2. Labor units. Write down what you have adjusted. Every experienced estimator carries labor factors that live partly in the software and partly in their head, and the ones in their head do not migrate. Get them into a document so the new database can be tuned to match.
3. Material database and pricing. Decide where your prices come from. PataBid's supplier pricing feeds and Accubid's database are both starting points that you override with your own distributor quotes on a real bid. Confirm units of measure on your most-used items; wire priced per thousand feet in one system and per foot in another will be found by the GC, not by you.
4. Parallel period. Run both systems on two or three live bids. It is the only way to find the assumptions that never made it into any document.

Five-year math, since people ask: one PataBid license is $2,460 × 5 = $12,300. Accubid Classic is about $2,000 one-time plus whatever support and upgrade fees you choose to take, and an enterprise Accubid suite at the reported $6,000 to $10,000 per user per year is $30,000 to $50,000 or more per user over the same period. Classic is cheapest on paper, the suites are far more expensive, and PataBid sits between. The hours spent on takeoff dwarf all three.

How AI takeoff feeds either estimating system

Pilars is not an Accubid alternative in the database sense and it is not a PataBid alternative either. It does not carry labor units, it does not price material, and it does not produce a bid. What it does is the part both systems still leave to a person: reading the drawings. Upload the plan set, and Pilars reads every sheet with the spec book, resolves the fixture and equipment schedules, counts the devices, measures the conduit and feeder runs, traces circuits, flags NEC and other code issues, and returns confidence-scored quantities sourced to the sheet so you can review them.

Those quantities then feed whichever estimating system you use. Device counts by type, lighting fixture counts by schedule tag, linear feet of run by size, panel and gear counts: export them and load them against your assemblies in Accubid or PataBid, where your labor units and pricing take over. The estimating database stays the system of record for how much a thing costs to install. Pilars replaces the 40 to 80 hours of clicking that gets you the quantity in the first place.

On accuracy, which is the fair question to ask of any automated counter, our fine-tuned model counted duplex receptacles at 97.5% on a real power plan in a published benchmark where twelve other systems landed between 65% and 88%. The review-first workflow exists because that last 2.5% still needs an estimator's eyes.

Pricing is $100 per trade per plan set, unlimited users, nothing to install, runs in the same browser as PataBid or alongside Accubid on a Windows machine. If you want to see what it pulls off your own set before feeding either system, run it in the live demo. For the takeoff workflow itself, our guide on how to do an electrical takeoff covers the manual steps Pilars is automating.

Questions estimators actually ask