These autolisp programs write, copy and read extended entity data for nesting block references in entitys. It allows an association of entitys with a blocks.

Creates duct lines by length, width and depth, and type, at an insertion point, round or square. Creates duct lines by length, width and depth at an insertion point, round or square.

Changes attribute heights in blocks

Change the color of all attributes in selected blocks.

Changes the case of text or attribute in a block.

Inserts an attributed cable reference block and trims around it.

This routine adds (SUM) the numerical values of attributes, text, and dimensions, then places a text line with the result.

Joist2K2D Steel Joist & Girder Series module includes the K, VS, LH and DLH Series and Joist Girders 2D Version. Easily create a wall section with a partial bar joist to the right or left side.

Modify values of multiple attributes across a set of drawings.

Why spend 15 to 20 minutes creating a Bar Joist when you could do the same thing in 30 seconds by using the Joist2K program? Joist2K module includes the K, VS, LH and DLH Series and Joist Girders.

Import items from another drawing into the current drawing.

Save time and money drawing 2D K-Series Steel Bar Joists in the plan, elevation or section views in seconds, not the usual 10 or 15 minutes for 2D.

Iron Valves 2D allows the user to easily place valves in various 2D views by selecting one of the toggles on the dialog. Also these valves are realistic looking.

Convert a nested block into a primary block.

Change the base point position for a selected block.

Iron 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.

SoftDraft Light Steel Framing Members 2K is a powerful 2D / 3D tool that allows you to easily select and place light steel framing members in your 2D wall sections and details and 3D Models.

Tanks3D includes five vertical tank styles and three horizontal vessel types. The program has a simple dialog box interface allowing the user to specify the dimensions.

Steel3D-AISC creates structural steel shapes from the LRFD15 database as a 3D solid and can be placed as a column or beams by selecting multiple lines in 3D model space

Zoom Autodesk® AutoCAD® view to true scale of the object - 1:1

Controlling dyn.block + constraint parameters and object properties from Microsoft® Excel tables

SteelPLUS™ Structural Shapes 2D/3D includes W-Shapes, Channels, Single/Double Angles, Square & Rectangular Tubing, Pipes, M, S, HP Shapes, and Tees as listed in the AISC / CISC Steel Manual.

Design HVAC Round Duct & Fittings FAST! SoftDraft's 2D plugin cuts drafting time & boosts accuracy. Try it today!

PVC 2D Piping System creates a variety of PVC Schedule 40 Pipe and Fittings for easy placement in the 2D PVC piping drawing. Includes 117 flanged and socket valves.