Does it read the walls from the PDF for me?

From architect's PDF plans to a structural model

Work straight on the architect's PDFs, one drawing per level. Trace walls, floors, roofs, beams and columns with snapping, and repeat a floor up the building in a few clicks.

Try it free See Pro

An architect's floor plan becoming walls, floors and a 3D model

Drawing to modelExample house

Reads: Vector and scanned PDFs
Tools: Snapping, ortho, copy, array
Levels: Place once, every level
Plan: Free

How it works

Import and scale

Import multi-page PDFs and set the scale from a known dimension. Levels stack on a shared basepoint.

The architect's plan with a level's walls traced

PlanPDF underlay

Trace with CAD tools

Snaps, live dimensions, window select, copy, move, rotate and mirror. Draw in 2D or straight in 3D.

A floor plan with each area coloured by the wall it loads

Plan · TributaryLive

Every level at once

Columns run from ground to roof by default. Copy to level and select similar repeat a floor up the building.

A tower frame with columns running through every level

FrameGround to roof

What to know

Vector PDFs work best. Scans can be traced but do not snap.
Free to use.

Questions

On towers, Tower checker makes every floor. You trace walls and columns over the plans with snapping.

Need this for your work?

Tell us in one line. We read every reply and build what is asked for most.

Tower checker

Several architect's PDFs in, plans aligned, one floor on every level.

IFC and BIM

Import an IFC model from Revit, Tekla or ArchiCAD. Export the takedown as IFC.

Load takedown

Tributary areas and the load at every wall and column base, live as you edit.

Start free. Upgrade when you export.

Everything in modelling is free. Pro adds clean branded reports and Word, Excel and IFC exports.

Open the app See pricing