The wall is cinder block and the ceiling above it is steel and concrete floor. the part of the wall im doing is on the first floor of a two floor building. I think the wall is a supporting wall, because it is the only wall for like a fourty foot span.
I need some information on how to cut a 5'x3' hole into a supporting cinder block wall. Do I need to support the wall, or can u just cut and then put wood on the perimeter of the opening. Im going to put plexigrlass in the opening.