Framing an opening for a patio door
Diomedes
| Posted in Construction Techniques on
I have a five foot patio door that I need to install into cinderblock. The stone mason is coming on Sunday to cut the opening and place the lintel. Should I cut the opening for a tight fit (62″ x 82″) and attach it to the block, or should I have him cut it wider and frame a rough opening with pressure treated wood then install the door. If I do the latter how can I dress the outside when it is installed…
Open for suggestions
Replies
what is your exterior finish?
Edited 5/5/2009 12:57 am ET by bluejae
The house is cinder block with what I believe is stucco. When I was running a new vent line for the kitchen fan the existing hole ran through a 4" block, had wire mesh and a coat of stucco / cement.
That makes covering any extra width relatively easy. Almost everything here in SoCal is stucco. You have a couple of options, 1. You can set the door unit flush with the block wall and attach a stucco mould, which is about an inch thick and 1 1/4 wide with a keyway for the stucco to grab into and usually made of redwood. This gets stuccoed to and leaves a narrow trim around the door 2. If you do as MikeSmith suggests and inset the door from the exterior, keep your treated at least flush with, maybe slightly behind the out side edge of the jamb and have the stucco sub build out his material to cover any p.t build out to create the reveal you want. This look requires no trim as the stucco wraps directly into the jamb.
It's a heck of a lot easier to make an opening smaller than it is to make it larger.
No way will the opening be perfectly square. You'll need room for shimming to get the door lined out right.
I've never put a door in a masonry opening, but I do know I'd want it a bit oversized.
The manufacturer tells you what the RO for masonry is for that door.
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dio... if it's an in-swing door, the door has to get set to the inside.....reverse for an out-swing
oversize your masonry and make your ro with PT framing