Some Screen Mounting-Height Recommendations are Wrong

Have you come across recommendations which say that the top of an 8ft screen should be mounted 10ft above the floor? That a 9ft screen should be mounted 11ft above the floor?

Consider: Such recommendations will then place the bottom edge of the screen at about 2ft. above the floor.

Now...

The picture below was taken by sitting in the third row of a flat-floor classroom and looking at a screen whose bottom edge is 4ft. above the floor, or twice the 2ft. recommendation often found in design manuals and on websites.

Realistically, the bottom edge of the screen will have to be about 6ft. above the floor to avoid having someone's head obscuring most students' view.

Try it... actually set it up in a room and prove it to yourself.

Related pages:

Raising a portion of the the ceiling to give an unobstructed view of projection screens

A view of the way the raised portion of the ceiling is constructed

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