wrote in message
oups.com...
I have an attached garage with cement block outside wall that I would
like to cut a hole in large enough for a 15,000 - 20,000 btu window
a/c. Feasible??


Sure. I've done it on a few houses. Add a lintel on the top. It is possible
to notch and fit a lintel in place, but you can also cut the opening wider
than what is needed, then put the steel on top and support it with brick
under it. If you can put the hole under a window there is less weight to be
supported also.