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Installing French Door

 
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Old 05-29-2020, 11:52 AM   #1
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Installing French Door


Hi guys, installing a french door on the back of my house and have a few questions for those who have knowledge of this project.

The primary question I have would be concerning how it fits at the bottom. The deck outside is level with the sub-floor, so I am not sure if I should cut the bottom plate out and have the threshold sitting directly on the deck (wheel-chair accessibility is a primary reason for the deck and door) or if I should leave the bottom plate in place and set the door on that which puts the threshold 3/4" above inside floor.

Another question is how much larger to make the rough opening. I have had a couple of people tell me to add 2' to dimensions of the door, and while that would certainly make it easier to get in place I'm thinking that makes it a little harder to shim.

Any help is appreciated, thanks.
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Old 05-29-2020, 03:37 PM   #2
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Re: Installing French Door


Quote:
Originally Posted by Darrell C View Post
Hi guys, installing a french door on the back of my house and have a few questions for those who have knowledge of this project.

The primary question I have would be concerning how it fits at the bottom. The deck outside is level with the sub-floor, so I am not sure if I should cut the bottom plate out and have the threshold sitting directly on the deck (wheel-chair accessibility is a primary reason for the deck and door) or if I should leave the bottom plate in place and set the door on that which puts the threshold 3/4" above inside floor.

Another question is how much larger to make the rough opening. I have had a couple of people tell me to add 2' to dimensions of the door, and while that would certainly make it easier to get in place I'm thinking that makes it a little harder to shim.

Any help is appreciated, thanks.

The rough opening is framed two inches bigger than the actual door slab size (in your case, two slabs) which accommodates the jamb thickness etc. If you have a 60" door (two 30" slabs) frame your opening at 62".

If you are at framing stage, I suggest leaving the bottom plate in for the time being until you come to an informed decision on how to set the door. Code around here is 3" from subfloor to deck surface I beleive. This helps stop water and ice from seeping into the house. If you do go flush, proper flashing and sealant are going to be critical if the door/deck are exposed to weather. The correct method is going to be circumstantial to your job.

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