: Go to the Modifier Properties tab (wrench icon) and select Solidify from the "Generate" column.
: Check Even Thickness for uniform results. You can later "Apply" the modifier if you need to bake the geometry. 2. Manual Extrusion 124793
This method directly creates new geometry to form a 3D volume. : Go to the Modifier Properties tab (wrench
: In Edit Mode, hold Alt and click an edge of the open boundary. If you already have the "walls" of a
If you already have the "walls" of a post but it is hollow (missing top/bottom caps):
: Select the plane and press Tab to enter Edit Mode. Select All : Press A to select all vertices/faces.
The identifier refers to a specific technical question on the Blender Stack Exchange regarding how to convert an extruded plane into a solid object.