Take-offs for every trade, for quantity surveyors.
One project, one drawing per package: structure, drylining, floors, joinery, building services. Every quantity is drawn on the drawing and backed up by the take-off calculations.
Windows 10 and 11. Free during the beta.
| Tiles 60 × 60 | 93.59 m² |
|---|---|
| Oak parquet | 49.87 m² |
| Skirting | 90.81 ml |
| Threshold strips | 6 u |
The same drawing, in Kotelys.
The take-off drawn on the drawing, the quantities sorted by type in the Objects panel, each in its colour.

What you measure, and how.
Three tools are enough: length, area and count. Each type keeps its colour, from the drawing to the report.
| Item | In Kotelys | Unit |
|---|---|---|
| Structure: footings, walls, slabs | AreaArea × thickness, length × height | m³ · m² |
| Drylining: partitions, linings, ceilings | LengthLength × height, openings deducted | m² |
| Floors and finishes, skirtings | AreaArea per room, skirtings from the perimeter | m² · ml |
| Joinery, appliances, equipment | CountOne click per reference | u |
| Services and linear runs | LengthLength per system | ml |
| Roofs | AreaArea on plan × the type's pitch | m² |
Kotelys does no pricing: the quantities go to your estimating software or your bills through the Excel export, with the take-off calculations to back them up.
Why Kotelys for this package.
One drawing per trade
The drawings of each package in a single project, sorted into folders; one report per package or for the whole project.
Quantities backed up
The take-off calculations write out every calculation, gross, deductions and net: they go with your estimate and answer questions weeks later.
Revisions tracked
New revision of a drawing and comparison of quantities between two revisions, to see what changed.
Frequently asked questions
Another question? Write to us.
Is Kotelys suited to a quantity surveying practice?
Yes: tender take-offs for every trade on the architects' PDF drawings, zones by building or by floor, reports and Excel ready to copy into your bills. It has no price library.
Do the totals match those of a bill of quantities?
Yes: each object is calculated as by hand, and a total is the sum of the lines shown, with the rounding of your report profile.
Does Kotelys open DWG files?
No: Kotelys works on PDFs and images, scanned drawings included. Print a DWG to PDF at scale from your viewer.
How do I get the quantities into my estimate?
The Excel export gives a summary and the object-by-object detail, as fixed values. The PDF take-off calculations write out every calculation, to attach to your pricing.
How much does Kotelys cost?
The beta is free, by invitation. The announced price is €24.90 excl. VAT per month per computer, with a one-month free trial.
Other trades
Structure and external works
Envelope
Building services
Site preparation
The beta is open, by invitation.
Testers are in France for now. Elsewhere? Leave your details and we will let you know.
Windows 10 and 11, 64-bit. Free during the beta.