Position at the bottom of a Carl’s enclosure

[nowitski41]

Is there space at the bottom of a Carl’s enclosure? I would think that the image starts at the floor level. If that is true then how do you deal with a floor mounted projector? Most, if not all, require a vertical offset.

[StuartG]

The viewable part of the screen does not start right at floor level. I haven't measured it but I'd guess it's roughly about 4" - 5".