HVAC Round Duct is a quick input parametric 3D drafting program for the creation of 3D Round Duct and Fittings.

Anchor Bolts 2D draws a Standard or ‘J’ type anchor bolts for base plate details.

Carbon Steel Buttweld Fittings 3D App will revolutionize the way you do 3D Piping drawings. The Pipe Spool feature makes it easy to add a pipe segment with selected starting and ending fittings.

Save time on engineering projects involving Bulb-T-Girders. This app lets you quickly create different Bulb-T-Girder profiles with all the dimensions you need directly in your AutoCAD drawings.

Bronze Valves 3D allows the user, without having to change the UCS, to easily place valves in various 3D views by selecting one of the toggles on the dialog. Also these valves are realistic looking.

Bronze Valves 2D allows the user to place a valve in Plan (side) View, Top View, and End View. Also these valves are realistic looking.

SoftDraft Structural Steel3K™ includes all the Structural Steel Shapes as listed in the AISC, MAISC, CISC, European DIN, Chinese, South African, Australian AUS, UK, and Japanese JIS Steel Manuals.

Create a closed loop around a curve at a specified distance. Merge several such contours.

Make use of AutoCAD® Architecture, AutoCAD® MEP, or AutoCAD Civil 3D in your BIM process. Property Set values can automatically be updated back and forth to one or many external databases.

App for Autodesk® AutoCAD® makes it easy to create or draw a catenary curve as a polyline by specifying the start and end point and the length/immediate point/sag and optionally a diameter(width).

JTB DimNotes makes it easy to add dimension notes to dimension objects in Autodesk® AutoCAD®.

Show the DWG and DXF version and properties and metadata in Explorer columns or in file dialog boxes within Autodesk® AutoCAD® or other applications.

DWG Columns freeware shows the DWG and DXF version in Explorer columns or in file dialog boxes within Autodesk® AutoCAD® or other applications.

Connect fields to Excel cell values. You can have Excel as the main source and when it is updated your drawings will be updated too. You can place fields in texts, mtexts, tables, and attributes.

Drawing Windows Colors changer for OSNAPZ.

This app can be used with Autodesk® AutoCAD® to enable the OFFSET command to work with externally referenced drawings, blocks, and lines within associated arrays, dimensions, and tables.

Manage drawings with many layouts more easily in a palette

Quickly renumber and insert the total number to the sheet set to show them up in fields [Sheet number]/[Total Number] in your title block.

Convert all raster images in drawing(s) to OLE objects, it's like binding external image references.

JTB Quick Perspective for Autodesk® AutoCAD® will transform Points, Lines, straight Polylines, and "landscape" Blocks to perspective view drawing, all in 2D working space.

App to quickly copy a rectangular window of selected objects out from your drawing, and trim everything outside the window's edges. The result can be copied to the current drawing or to the clipboard.

App to simplify layer override settings within viewports.

JTB XClipClean is an Xclip-cutter app for Autodesk® AutoCAD® to clean up xrefs or blocks that have been clipped so that the information that is outside the clip is removed.

You can insert text bubbles to lines, curves, or draw leaders with it, or quickly make a schedule from text bubbles and/or other blocks.