SPSolutions now provide made to order cages to protect equipment such as projectors , speakers or

Projector cages can be made to fit each specific projector & mount in a way that will protect your equipment without effecting the image displayed or the air flow of the machine. As pictured below projector cages can be finsihed in white which suits most school halls perfectly.

Ultra short throw projector in school hall
Cages are cut just enough to allow the image through