On May 16, 9:59 am, tr wrote:
I need to cut a new 32" exterior door in to my masonry block home.
the location of this will be right at the corner junction of two
exterior walls. The type block in this area is the shorter 4"
height...not the typical 8 or 9 inch high hollow core block. I have a
flat roof and this door way will be about 3.5 feet below the roof
line.

Can I cut flush with the perpendicular exterior block wall and mount
my double side framing flush with the perpendicular corner wall...or
should I cut so there is at least some of the return wall stub left in
the corner ?

Also...do I need to support the opening during cutting will some type
of post....or will the block construction be strong enough to cut out
the 32" x 90" or so opening and install the reinforced sides and
header without a temporary support system ?

Thanks, Tim

If your area has building codes, talk to the Building Official or a
plans examiner about the requirements. They will probably want an
engineer's certification.

If you don't have building codes, do what you want. If it falls down,
fix it.