I know they will come out to measure for installations of most anything, but am not sure if it depends on each Lowes policy. Im pretty sure they are all the same, but best to call your local lowes and ask them directly. It sounded to me like you thought you were asking Lowes directly, but we are Google local guide users.
I work at Lowes and we will come measure if we are doing the install.
I believe they will set up what you need. We have gone and set up and had French doors and an outside door installed by their contractors
Sorry don't know
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