From ZDoom Wiki
94:Pillar_BuildAndCrush (tag, speed, height, crush [,crushmode])
- tag: Tag of affected sector
- speed: Speed of the build
- height: Height (relative to floor) where the floor and ceiling meet
- crush: Amount of damage to apply
- crushmode: Sets the crushing mode
This is the same as Pillar_Build except that it will also apply crushing damage to anything blocking the pillar from closing.