Doors – Inswing door over the rising pitch on a porch floor

doorsporchslope

I'm getting ready to renovate my enclosed porch. It was originally open air and had a simple wood panel enclosure kit installed. I'm planning on demoing the walls and rebuilding 2×4 stud framing… Started looking for a new prehung entry door and realized I have a problem…
The porch floor is pitched as it was originally designed to shed rain water away from the house. The door opens in over the rising floor. The current door has a pretty tall sill plate and the bottom is still trimmed on an angle and a sweep installed.

Short of releveling the floor is there any way to install a prehung door to open over the rising floor?
I can use an outswinging door as there are steps leading up to the door with no landing on the outside.
I would assume adding a footer under the prehung sill plate may work but I'm concerned that it will create a tripping hazard stepping up to walk out the door and down the steps…
To be clear this is not an uneven sill question. The door opens over a rising floor.

Best Answer

I can see four options, two of which have been mentioned so far:

  • Increase the threshold height
    I can see this going poorly, as a trip hazard at the top of some stairs
  • Using an out-swing door instead
    This is probably the simplest option, but can look odd from an exterior perspective
  • Use a drop-down weather strip with enough clearance
    It could look a bit odd when the door is closed, but it looks like there are options for up to 1 5/8" (42mm) of height difference between the door being open and shut. See this supplier for an overview. Probably the most expensive.
  • Use a "rising butt" hinge.
    These lift the door as it swings in, and can provide maybe 1/2" of lift. They are also self-closing by design.