TestFit release 2.14 Office, Parcels, and Columns

TestFit Becomes the First Architectural Configurator to use Structural AI

A New Type of Building

Today we add “Core-Based” office buildings to our product offering–it has officially moved out of Beta!

Office Floor Plate Generator

IBC Compliant Cores

  • Bathrooms are dynamically linked to floor loads
  • Stairs update widths based upon floor load demand
Bathroom Configurator

IBC Compliant Staircases

  • Stairs adjust depth based upon floor to floor height
  • Stairs adjust minimum width based upon dynamic floor loading
IBC Compliant Stairs

Parcel Data

  • TestFit users now have access to parcel data for the whole United States
  • Define sites from parcels

Columns Using Thornton Tomasetti Core Studio’s AI

  • Automated column sizing for parking garages
  • Watch our discussion with Thornton Tomasetti here.

column sizing in plan


  • Added a new site type: Core-based buildings.
  • Added garage columns provided by Thornton Tomasetti.
  • Added a new GIS data layer: parcels.
  • Added a new tool in the site panel to create site boundaries from parcels.
  • Added parapets around void spaces.
  • Added a merge levels parameter for multi-story low density spaces.
  • Added a toggle to change the entry edge for outside corner units.
  • Added a second base depth parameter for outside corner units.
  • Added a path width parameter for custom dead end units.
  • Updated the About -> Documentation link to the online knowledge base.
  • Added a unit flex preview while viewing units in the editor.

Reported Issues & Bug Fixes:

  • Fixed the building font size for metric sites.
  • Fixed names with commas in the csv export.
  • Fixed missing garage liner massing.
  • Fixed common area rendering artefacts.
  • Fixed tiny units when solving sites loaded from old rsd files.
  • Fixed the default townhouse unit sizes in metric.
  • Fixed cases where façade & parapet geometry did not match the units.
  • Fixed discrepancies between unit rendering in the editor vs the plan.
  • Fixed missing outer stall rows for surface parking.
  • Fixed poorly-filled concave parking lots.
  • Fixed townhouse garage is NRSF preference.
  • Fixed low density site entrances near very narrow road angles.
  • Fixed the missing file extension dropdown in the MacOS file dialog.
  • Fixed incorrect handling of ctrl+click as a left click on MacOS.
  • Fixed 3D views loaded from an rsd file.
  • Fixed building inputs scrollbar on high DPI monitors.
  • Fixed a crash routing ramps in complex garages.



TestFit release 2.13 Lower Density Spaces

Website Screenshot
TestFit’s Home Page Has Been Updated; Check it out!

A New Type of Space

Our most popular feature from high density makes its debut in lower density spaces.

Low Density Spaces

Retention Spaces

  • Easily control the location and size of void spaces to allocate retention areas
  • Right-click to edit the space’s properties
retention spaces

Club House Spaces

  • With the same tool, easily change it into a Club House
  • There can be several spaces per site

Rectangle grips update

  • With our continued commitment to urban planning, we have released a new tool set for block sizing: rectangle grips
  • If TestFit recognizes a rectangle, additional grips are available to the user
  • It also supports squares, a type of rectangle
True Rectangles

Additional Details

  • Extended unit image attachments to include bays.
  • Added spaces to the DXF exporter.
  • Added low density site geometry to the low detail 3D view.
  • Added a button to clear all roads.
  • Improve massing layout for small sites with single loaded corridors.
  • Fixed spaces in the garage being non-interactive and tabulated incorrectly.
  • Added missing elements to the low detail townhouse SketchUp exporter.
  • Fixed embedded images disappearing after a while.
  • Fixed missing image name for embedded images.
  • Fixed incorrect unit attachment orientation for some OC units.
  • Fixed dead end unit attachments being cropped incorrectly.
  • Fixed a crash attaching images to townhouse units.
  • Fixed a crash when drawing overlapping guides in manual mode.
  • Fixed memory leaks in the MacOS client.
  • Fixed missing garage liner units in concave sites.
  • Fixed dead end units occasionally disappearing when adding cores.
  • Fixed bay and balcony alignment for townhouse endcap units.
  • Fixed the balcony over setback parameter being ignored for donut sites.
  • Fixed invisible driveway element handles in light theme.
  • Fixed some very narrow units in metric sites.

TestFit release 2.12: Lower Density Housing

TestFit’s Lower Density Configurator

A New Site Type: Lower Density Housing

As we have continued to grow, our customer requests have grown as well. This new Lower Density Housing Configurator can handle townhomes, rowhouses, triplexes, and duplexes.

Starting today, TestFit can solve from 1 du/ac to 1000 du/ac.

Unit Editor Upgrades


  • Easily control the location and size of garages; or disable them completely
  • Set a custom stall count for site-wide parking ratio tabulations

Chamfered Bays


  • Since these dwelling units are multiple floors, stairs can be indicated
  • This feature works well to indicate large voids within these units

Multiple Level Units

  • Lower density units can be multiple floors!
  • Unit elements such as Bays and Stairs can be shared between multiple floors

Lower Density Housing Configurator


  • Kit-of-parts units are automatically placed site-wide
  • 3D concept massing is generated

House Front Setback

  • Adjust the distance from generated streets to the fronts of units

Row Gap Size I

  • Control the distance between clumps of buildings on the same road

Row Gap Size II

  • Control the distance between individual buildings on the same road

Back-to-Back Buffer

  • Control the distance between buildings on adjacent roads

Dynamic End-Cap Units

  • Enable these to get a tiny building efficiency bonus

Unit Attachments Default

  • We have added an example of unit attachments as a default unit database

Other Improvements

  • Added a copy/paste clipboard for unit editor.
  • Added a link to the knowledge base in the help menu.
  • Improved the responsiveness of various GUI interactions.
  • Improved mass placement in small sites.
  • Improved 2D rendering for multi-floor buildings.
  • Moved the default geographic location, slightly.

Bug Fixes & Reported Issues

  • Fixed a crash when entering manual mode for a wrap-podium site.
  • Fixed a rendering error when viewing manual mode.
  • Fixed a bug where corner units flexed regardless of the parameter value.
  • Fixed a crash when placing a parking lot in concave site boundaries.
  • Fixed floating point precision errors in the glTF export.
  • Fixed context menus closing when typing in a widget.
  • Fixed some issues with bay/balcony collisions in the unit editor.
  • Fixed some issues with mass placement orthogonalization.
  • Fixed a rendering error in the unit editor.

Metric Support

  • Fixed several issues with the conversion of sites into metric.
  • Fixed metes & bounds input.
  • Fixed the display of lengths in the unit editor.
  • Replaced acres with hectares in several locations.
  • Replaced NRSF with NSM when showing tabulations.
  • Switched the input length to millimeters in the image importer.