Strip-out and demolition take-off.
On the existing drawing, mark what comes out: partitions, finishes, suspended ceilings, doors, appliances. Kotelys counts every removal, flat by flat.
Windows 10 and 11. Free during the beta.
| Partitions to demolish · h. 2.50 m | 104.00 m² |
|---|---|
| Suspended ceilings to remove | 263.18 m² |
| Parquet to remove | 195.48 m² |
| Tiles to remove | 67.70 m² |
| Doors to remove | 13 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 |
|---|---|---|
| Partitions and linings to demolish | LengthLength × height | m² |
| Floor finishes to remove | AreaArea per finish, room by room | m² |
| Suspended ceilings to remove | AreaArea, voids deducted | m² |
| Screeds or slabs to break out | AreaArea × thickness | m³ |
| Doors, sanitary appliances, radiators | CountOne click per item removed | u |
| Skirtings, trunking, services | LengthLength removed | ml |
The volume of rubble, the bulking factor and waste sorting are then worked out in your estimate, from the Kotelys quantities.
Why Kotelys for this package.
The existing drawing is enough
A PDF or an old scanned drawing: the scale is calibrated on a known dimension.
One zone per flat or per floor
Every removal is split by zone in the reports, to phase the strip-out.
Existing and proposed in one file
The existing drawing and the project drawings live in the same project, each with its types and reports.
Frequently asked questions
Another question? Write to us.
Is Kotelys suited to a strip-out or demolition contractor?
Yes, for quantities on the drawing: areas to remove, lengths and items, flat by flat. Asbestos and lead surveys remain those of the specialist reports.
Can you estimate a volume of rubble?
Kotelys gives the areas and, with a thickness, the solid volumes; the bulking factor is then applied in your estimate.
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.