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Electrical quantity takeoff with AI

A Finnish solution for electrical contractors. Count the quantities in electrical drawings automatically, finalise the result and download the report.

Switchboard takeoff is now included as well

Book a free demoYou can start testing the software straight away

The demo takes 20 min and carries no obligation.
Any questions? Write to us at hello@tasma.ai

How it works

Upload a PDF drawing and the AI recognises the symbols. The user checks the result, finalises the file and downloads the report.

Workspace: the list of symbol types to check on the left and the symbols recognised in the drawing in coloured boxes.

Upload a PDF and symbol recognition starts automatically. You can add several files at once. Every symbol found is marked on the drawing’s checklist and on the map.

  1. 1Recognise

    The AI recognises and counts the symbols

    Upload a PDF and symbol recognition starts automatically. You can add several files at once. Every symbol found is marked on the drawing’s checklist and on the map.

    The list of symbol types to check, with their quantities.
    Workspace: the list of symbol types to check on the left and the symbols recognised in the drawing in coloured boxes.

  2. 2Check

    Review the recognised symbols in the checklist

    Matches of the same type are grouped together on the checklist. It is easy to go through them one by one and make any changes needed.

    Matches for one symbol type, each cropped from the drawing, side by side.
    One symbol type open on the checklist: 2-gang socket, flush, quantity 93, the Approve button and the type’s matches cropped from the drawing, side by side.

  3. 3Find

    Find similar

    If a symbol was not recognised, draw a box around it and the similar ones are found in the drawing.

    The similar symbols found, side by side and marked on the drawing.
    Find similar: the similar symbols found in the drawing are marked, and the matches are shown side by side in a list.

  4. 4Measure

    Measuring from the drawing

    The tool recognises cables and cable routes, so measuring is quick. The user only needs to click the right shapes. The software has all the usual measuring tools: setting the scale, managing measurements flexibly and easily adding installation allowances, extra lengths and rises.

    A cable route measured on the drawing and its length: Wiring MMJ 3x2.5, 10.43 m.
    The Measurements view: four measured cable routes listed with their types and lengths, and the selected route on the drawing: Wiring MMJ 3x2.5, 10.43 m.

  5. 5Report

    Download the report

    The takeoff is complete. Download the quantities as an Excel file or in another format of your choice (e.g. CSV, PDF). On request, we will make the report exactly the way you want it. That way it fits how you finish a takeoff in practice, and it works with other software too.

    The Download quantities menu: Excel for the whole project or CSV row by row.
    The Download quantities menu: Excel for the whole project or CSV row by row.

Would you like to see these steps on your own drawing?

Book a free demo
Any questions? Ask by email

Quantity takeoff wastes time

Tasma is designed to save electrical professionals time. Symbol recognition, assisted measuring and the search tools save users hundreds of hours a year. The modern interface makes it easy to get started, and new features are developed quickly. Frequently requested features are made available for users to test within the same week.

The Tasma workspace: the list of symbol types to check on the left and the drawing, with the recognised symbols in coloured boxes.

Continuous performance testing

Test period 30 September–1 October 2026

88
Harder-than-average floor plans
Over 95%
Found over 95% of the symbols in the test set
23 000
Over 23,000 symbols recognised in the test. Estimated time saved: about 150 hours

Features

Symbol recognition, measuring and reports. All in one tool.

  • Automatic symbol recognition

    The AI recognises the symbols on floor plans, such as sockets, switches and detectors, and counts them by type. Works with both vector PDFs and scanned PDFs.

  • Measuring tools

    Draw a cable route on the drawing. In a vector PDF you can also click the cable line and Tasma follows it. The length is calculated in metres from the drawing’s scale.

  • Excel and PDF reports

    Quantities and item codes to Excel, with measurements on a separate tab. Marked-up PDFs for checking.

  • CSV file

    Quantities as a CSV file for your own estimating software.

  • For partners

    Software vendor or reseller? Let us know if you would like to offer Tasma quantity takeoff to your own customers. Write to us with the subject line Partnership

Frequently asked questions

How well does recognition work in practice?

The easiest way is to try it yourself on your own drawings. In the latest tests, Tasma found over 95% of the symbols it has been trained on, using large files that were harder than average. Symbols the tool does not find can be found with a separate search tool, so the takeoff is quick either way.

How do I get started?

Book a demo and we’ll go through the tool on a call. At the same time, we set up accounts for your company that you can start using straight away.

How much does Tasma cost?

You can ask for more details on pricing in the demo or by email at hello@tasma.ai

Does Tasma read switchboard diagrams?

Yes, switchboard drawings have their own precise counting tool and assisted checking.

What kinds of drawings work?

Vector PDF, scanned PDF and PNG, JPEG and WebP images.

Which symbols does the tool recognise?

The 100+ key electrical symbols, such as sockets, switches, smoke detectors and manual call points.

Does it find the symbols even though every designer draws them in their own way?

Yes, it does. We have gone through the requirements and the ways symbols vary with industry experts. If the tool does not find a symbol, a separate search tool is there to help.

Does it work with our estimating software?

The final report is available as Excel, CSV and PDF files. In addition, we can tailor the report to suit users’ needs.

How is data security taken care of?

Tasma is GDPR compliant. Your data stays in the EU, and the connection to the service is secured with SSL. Data security and data processing are described in more detail in the terms of use.

Is Tasma available in Finnish?

Yes. Tasma is available in Finnish and English. On request, we can add more language versions.

Do we need to install anything?

No need. Tasma runs in the browser.

Book a personal demo

In the demo we go through your drawing together, and you can compare the quantities with your own calculations. The demo is free and carries no obligation.

Preferred time

The demo takes 20 minutes and is held in Finnish or English. Our Privacy Notice explains how we handle your data.

Would you like to send a drawing in advance? Attach it to an email

Any questions? Ask by email

How the demo goes

  1. You book the demo using the form.
  2. We usually reply within one working day and confirm the time.
  3. In the demo we go through your drawing. You will see how the AI recognises the symbols and how they are checked one type at a time.
  4. When you decide to start, we set up accounts for your company.

Choose a drawing you are allowed to share. A project you have already estimated works best. If you don’t have a suitable drawing, we will run the demo on a sample drawing.

Software vendor or reseller? Write to us with the subject line Partnership

Who makes it

Tasma is made by Täsmä AI Oy

Täsmä AI Oy is a Finnish software company that develops the Tasma software full time.

Tasma has been developed together with Finnish electrical contracting experts.