It s not impossible but it s sort of it s not carpentry 101.
Is a permit required to add a sliding exterior door.
And while it s difficult to install a regular exterior door a single hung exterior door it s even more difficult to do a french door where you have two doors that close in on themselves.
There are doors in all sorts of sizes from nominal 72 x 80 to 74 x 82 ro to replace entry size french doors to almost whatever you want.
Some doors come pre hung which allows you to install the doors and jambs as a unit.
But if you re making your door larger or building a new door entirely a permit is required.
This chapter provides guidelines on door height and width based on the function of the structure.
Once the framing is done the next step is to install the door jambs and hang the doors.
Building a garage or even a carport.
This permit action concerns not just your personal safety but the health of those serviced by the main sewer line down from your house.
Cover the walls and install.
The same principle applies to doors.
Change the footprint of your house move a load bearing wall alter the roofline create a new door or window opening replace an electric stove with a natural gas model move.
It s a little more advanced.
Exterior doors windows and skylights that require a new opening.
You will probably need a permit if you plan to.
Code requirements for exterior doors are covered in chapter 10 of the ibc.
Another irc code issue that might affect your patio plans takes a little more digging.
The step outside an exterior door such as the door you use to get from your house to your patio must be no more than 7 3 4 inches high measured from the patio surface to the top of the door threshold.
This is an extra step that adds to the cost and it will probably have to be included in the plans you file to get the permit.
Like with windows there s no need for a permit if you re replacing a new door in the original jamb.
We had a development nearby when i sold windows and doors and the builder used all double entry doors as patio doors probably a good deal from the distributor.
You may be looking into replacing your entry door or adding a new door for your patio.
It also covers the size.