How to Create a Stretchable House Footprint Dynamic Block in AutoCAD

In this AutoCAD dynamic block tutorial, I show how to create a stretchable house footprint using linear parameters and stretch actions. It's a standard external wall build-up: brickwork, 150mm insulated cavity, blockwork, and plasterboard on dabs. The footprint can be resized while maintaining consistent wall construction. The dynamic block parameters are locked to 112.5mm increments so the overall footprint always stretches to brick dimensions, making the block more useful for architectural working drawings and housing layouts. This block forms part of an ongoing reusable parametric AutoCAD detail library for architectural technicians, students, and CAD users. 00:00 Intro 00:27 Broader explanation: House Footprint Blocks 01:16 Simple House Footprint Dynamic Block 01:42 Adding the parameters 02:18 Linear parameter grip edits and making incremental 02:50 Creating a minimum increment on a parameter 03:44 Adding actions to parameters 05:13 Testing the block 06:03 Adding check dimensions to an existing action 07:38 Modifying a dimension style 08:31 Testing the block again 08:59 Repeating the process on a more complicated footprint 10:47 Changing the text position of individual dimensions 11:34 Adding parameters again 13:07 Changing the parameter grips again 13:18 Naming the parameters 14:52 Adding stretch actions to linear parameters 17:06 Testing the block 20:29 Use Quick Select to select only one object type 23:13 Fixing the first mistake 24:25 Fixing the second mistake 26:06 The end Software: AutoCAD LT Channel: CADingMeSoftly