JTB Rebar

JTB World Inc.
BIM-like Rebar Callout - Automatic Rebar Table - Dynamic Beam Detailing


JTB Rebar app has two sections. First section is generally about the "Rebar Callout" block. Second section is for rebar detailing commands. Currently, in the second section, there is 1 command available. It is JTBW_DETAILBEAM command.

a. Section 1 - Rebar Callout

The key object of JTB Rebar app is a special dynamic block named "Rebar Callout", used for tagging rebars.

All the information of a rebar will be written to "Rebar Callout" block's attributes: rebar size, bending shape and dimensions, number of rebars, rebar mark and rebar table name (or barlist name).

JTB Rebar gives you 2 commands helping you to work efficiently with the "Rebar Callout" block. They are JTBW_InsertRebarCallout and JTBW_EditRebarCallout.

Note that, there is no synchronization between the Rebar Callout block and the rebar line or pline object. Once drawing is changed, you have to run JTBW_EditRebarCallout to update the information.

But once you have all rebar callouts with correct bending information, the app can generate Rebar Tables (or Barlist Tables) across drawings for you. Rebar Callout blocks are like BIM objects, and the rest of the work is automatic:

  • + Run JTBW_GenRebarTables command, then select drawings. The app will parse all rebar callouts in all selected drawings, group similar rebars to groups, then assign unique rebar marks to them.
  • + Next, it will create or update existing Rebar Tables (or Barlist Tables) in each drawing.
  • + All rebar callouts in all selected drawings will have their mark updated.
  • + Finally, all rebars information will be updated to Rebar spreadsheet.xlsx Excel workbook.

b. Section 2 - Beam Detailing Commands

The command's name is JTBW_DetailBeam. If you are drafting multi-span beam with varying heights every day, then this command can be a game changer for you.

The unique feature of the app is you don't have to enter beam's dimensions to a window with text boxes and combo boxes, etc. !

The input form for the beam is the AutoCAD drawing itself! You draw your beam sketch, fill information to input blocks of beam section, rebar, rebar tie, anchor, etc. You can also copy your sketch to make another beam!

Then, based on your sketch, JTBW_DetailBeam command will generate the final drawing of the beam.

Moreover, beam's rebars will be tagged properly by "Rebar Callout" blocks. Therefore, to create the Rebar Table (or Barlist Table), it is just one click away by running the JTBW_GenRebarTables.

c. Trial License

Trial License is available for 15 days after first usage. Trial license is for evaluation, non commercial and educational purpose only.

General Usage Instructions

1. Setup your preferences: this is important job to do, before start using JTB Rebar

2. Understand the Rebar Callout block: Rebar's tag should be written properly so that the app can parse the texts.

3. Step through

Following these steps to browse through sample drawings and try some JTB Rebar commands. Once done, you can see how the workflow goes:

+ Open JTB Rebar Test Drawings folder by pasting the following path to your Windows Explorer address bar: %appdata%/Autodesk/ApplicationPlugins/JTB Rebar.bundle/Contents/Test Drawings

  • + Open JTB Rebar Test 1.dwg and JTB Rebar Test 2.dwg
  • + Initially, there are no rebar tables in the 2 drawings.
  • + Run JTB_GenRebarTable command
  • + Select drawing window shows up. Select current drawing then click OK
  • + If asked, click Yes or No to continue
  • + Finally, you will see newly created rebar tables at the top right corner of both test drawings
  • + If you click "Yes" when asking for exporting to Excel, in the drawing's folder, a new Rebar spreadsheet.xlsx is generated. Open the file with Microsoft Excel to see that all rebars are in the report and summary.
  • A screenshot video shows how JTBW_GenRebarTable work is on this page

  • + Now, switch to JTB Rebar Test 2.dwg
  • + Delete all the beam detail drawings
  • + Run JTB_DetailBeam command
  • + Select all. Note that there is a filter feature in every selecting action. You can just make a Window Select, and the app will get the right objects within.
  • + Click "Detail Beam" button
  • Another screenshot video of it in DetailBeam command help page

    Detail Usage Of Each Command

    1. JTBW_InsertRebarCallout and JTBW_EditRebarCallout commands

    2. JTBW_GenRebarTables command

    3. JTBW_DetailBeam command

    4. Detail and preview of each bending type and its geometry


    Edit Callouts Window
    Rebar Tables in AutoCAD
    Rebar Table Spreadsheet
    Settings - Edit Table 1
    Settings - Edit Table 2
    Settings - Edit Table 3
    DetailBeam command
    DetailBeam - From Scratch
    DetailBeam Input
    DetailBeam result


    Ribbon/Toolbar Icon Command Command Description


    Insert a new Rebar Callout to current drawing, then open the Rebar Callout Editor


    Open Rebar Callouts Editor window


    Collect rebar callouts across drawings; Group similar rebars to groups, then generate rebar marks, rebar tables, and update the result to an Excel spreadsheet.


    Setup the app's preferences before using it


    Generate multi spans, varying heights beam drawing


    Open Activation Form to activate the app. This command is available in command line only.


    The installer that ran when you downloaded this app from Autodesk App Store has already installed the app. You may need to restart the Autodesk product to activate the app.

    You can uninstall it just as you would uninstall any other application from your system. On Windows 10 Version 1703 or later press Windows+I on the keyboard to access Settings or click the lower-left Start button on the desktop to expand Start Menu, and then select Settings in it. Click on Apps. On Windows 7/8/8.1/10 (older than Version 1703) click Control Panel > Programs > Programs and Features or Control Panel > Add. On Windows XP click Control Panel > Programs > Remove Programs.

    Additional Information

    Known Issues


    Version History

    Version Number Version Description


    Dialog box improvements to better handle different Windows text scale settings

    Updated installer

    Added ability to install and configure for network license usage through command line

    Now installs to ProgramData\Autodesk\ApplicationPlugins\JTB Rebar.bundle


    Added Autodesk® AutoCAD® 2020 support

    Upgrade the installation


    Added Autodesk® AutoCAD® 2019 support

    Upgraded the framework and enhanced the UI.


    Initial release.