Quantity takeoff from DWG/AutoCAD files
BuildLab reads a DWG or DXF in a project, proposes quantities from layers and entities, then lets an engineer review them before exporting a BOQ Excel sheet.
From drawing to BOQ
DWG takeoff workflow
This is the live product flow. This page does not include a public CAD demo.
01
Create a project and upload drawings
Sign in, open a project, then upload DWG, DXF, PDF or images. Only clean CAD files (DWG/DXF) run automatic processing.
02
The system reads layers and entities
DXF is parsed directly. DWG is converted to DXF before layers, entities and blocks are read. PDF and images stay as stored files and do not run the CAD processor.
03
Review and lock quantities
Open quantity review, edit proposals, handle warnings, then lock each approved line.
04
Build the BOQ and export Excel
Create BOQ items from locked quantities, enter unit prices, then download Excel or PDF.
Limits of DWG and DXF drawings
Clean DXF files are parsed directly. DWG files go through a conversion step (Autodesk Platform Services) before they become DXF for parsing. Messy drawings, nested blocks, or unclear units produce missing or wrong proposals.
PDF, PNG and JPG can be uploaded but do not produce automatic CAD quantities. This page has no public CAD viewer.
Related pages
Automation plus engineer review
BuildLab proposes quantities from the drawing automatically; an engineer must review and lock them before they enter the BOQ. Automatic takeoff is not treated as 100% accurate.
Frequently asked questions
Does uploading a DWG immediately give correct quantities?
No. The system proposes quantities from layers and entities. An engineer reviews, edits and locks them before they are used in the estimate.
How does BuildLab treat DWG versus DXF?
DXF is parsed directly. DWG needs a conversion step to DXF before layers and entities can be read.
Do I need an account to read this page?
No. This explainer is public. Uploading CAD and processing drawings happens inside a project and needs an account with CAD permission.
Do PDF or scanned images take off automatically?
They can be stored as drawings, but they do not run the CAD processor. Quantities from PDF or images must be entered or reviewed by hand.
Start from a project
Create an account, open a project, then upload a DWG or DXF to run takeoff.