Draw Building Envelope Polyline
Function
This command creates a rectangler polyline around selected linework.
This can be used to give a building all one elevation.
Select the entities that make up the building. Next you will be
prompted to name the layer and to set an offset distance (The above
example is offset by 5 feet). Also, you can set the elevation of the
envelope and trim crossing linework to ensure you have a flat pad.
Prompts
Draw
Building Envelope dialog
Select building lines.
Select objects: pick the linework
that makes up the perimeter of the building
Draw another building envelope
[<Yes>/No]? N
Keyboard Command: bldg_perim
Prerequisite:
a pad