PATIO DOOR
I am renovating my screened in patio. The foundation is slab concrete.
I want to install a patio door where there is now wood framed screen
windows. I know how to frame it. My question is in regards to the
floor. Can I install the door directly onto the concrete slab? Should
I put a subfloor under it? How could I secure the sill to the concrete
slab? Thanks for the help....
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